mirror of
https://github.com/pineappleEA/pineapple-src.git
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2908 lines
104 KiB
C
Executable File
2908 lines
104 KiB
C
Executable File
/*
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* MJPEG decoder
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* Copyright (c) 2000, 2001 Fabrice Bellard
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* Copyright (c) 2003 Alex Beregszaszi
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* Copyright (c) 2003-2004 Michael Niedermayer
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*
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* Support for external huffman table, various fixes (AVID workaround),
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* aspecting, new decode_frame mechanism and apple mjpeg-b support
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* by Alex Beregszaszi
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* MJPEG decoder.
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*/
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#include "libavutil/imgutils.h"
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#include "libavutil/avassert.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "blockdsp.h"
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#include "copy_block.h"
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#include "hwconfig.h"
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#include "idctdsp.h"
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#include "internal.h"
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#include "jpegtables.h"
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#include "mjpeg.h"
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#include "mjpegdec.h"
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#include "jpeglsdec.h"
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#include "profiles.h"
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#include "put_bits.h"
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#include "tiff.h"
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#include "exif.h"
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#include "bytestream.h"
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static int build_vlc(VLC *vlc, const uint8_t *bits_table,
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const uint8_t *val_table, int nb_codes,
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int use_static, int is_ac)
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{
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uint8_t huff_size[256] = { 0 };
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uint16_t huff_code[256];
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uint16_t huff_sym[256];
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int i;
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av_assert0(nb_codes <= 256);
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ff_mjpeg_build_huffman_codes(huff_size, huff_code, bits_table, val_table);
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for (i = 0; i < 256; i++)
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huff_sym[i] = i + 16 * is_ac;
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if (is_ac)
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huff_sym[0] = 16 * 256;
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return ff_init_vlc_sparse(vlc, 9, nb_codes, huff_size, 1, 1,
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huff_code, 2, 2, huff_sym, 2, 2, use_static);
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}
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static int init_default_huffman_tables(MJpegDecodeContext *s)
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{
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static const struct {
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int class;
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int index;
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const uint8_t *bits;
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const uint8_t *values;
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int codes;
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int length;
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} ht[] = {
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{ 0, 0, avpriv_mjpeg_bits_dc_luminance,
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avpriv_mjpeg_val_dc, 12, 12 },
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{ 0, 1, avpriv_mjpeg_bits_dc_chrominance,
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avpriv_mjpeg_val_dc, 12, 12 },
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{ 1, 0, avpriv_mjpeg_bits_ac_luminance,
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avpriv_mjpeg_val_ac_luminance, 251, 162 },
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{ 1, 1, avpriv_mjpeg_bits_ac_chrominance,
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avpriv_mjpeg_val_ac_chrominance, 251, 162 },
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{ 2, 0, avpriv_mjpeg_bits_ac_luminance,
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avpriv_mjpeg_val_ac_luminance, 251, 162 },
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{ 2, 1, avpriv_mjpeg_bits_ac_chrominance,
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avpriv_mjpeg_val_ac_chrominance, 251, 162 },
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};
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int i, ret;
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for (i = 0; i < FF_ARRAY_ELEMS(ht); i++) {
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ret = build_vlc(&s->vlcs[ht[i].class][ht[i].index],
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ht[i].bits, ht[i].values, ht[i].codes,
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0, ht[i].class == 1);
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if (ret < 0)
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return ret;
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if (ht[i].class < 2) {
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memcpy(s->raw_huffman_lengths[ht[i].class][ht[i].index],
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ht[i].bits + 1, 16);
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memcpy(s->raw_huffman_values[ht[i].class][ht[i].index],
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ht[i].values, ht[i].length);
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}
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}
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return 0;
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}
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static void parse_avid(MJpegDecodeContext *s, uint8_t *buf, int len)
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{
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s->buggy_avid = 1;
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if (len > 14 && buf[12] == 1) /* 1 - NTSC */
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s->interlace_polarity = 1;
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if (len > 14 && buf[12] == 2) /* 2 - PAL */
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s->interlace_polarity = 0;
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if (s->avctx->debug & FF_DEBUG_PICT_INFO)
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av_log(s->avctx, AV_LOG_INFO, "AVID: len:%d %d\n", len, len > 14 ? buf[12] : -1);
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}
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static void init_idct(AVCodecContext *avctx)
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{
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MJpegDecodeContext *s = avctx->priv_data;
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ff_idctdsp_init(&s->idsp, avctx);
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ff_init_scantable(s->idsp.idct_permutation, &s->scantable,
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ff_zigzag_direct);
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}
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av_cold int ff_mjpeg_decode_init(AVCodecContext *avctx)
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{
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MJpegDecodeContext *s = avctx->priv_data;
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int ret;
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if (!s->picture_ptr) {
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s->picture = av_frame_alloc();
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if (!s->picture)
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return AVERROR(ENOMEM);
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s->picture_ptr = s->picture;
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}
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s->avctx = avctx;
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ff_blockdsp_init(&s->bdsp, avctx);
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ff_hpeldsp_init(&s->hdsp, avctx->flags);
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init_idct(avctx);
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s->buffer_size = 0;
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s->buffer = NULL;
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s->start_code = -1;
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s->first_picture = 1;
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s->got_picture = 0;
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s->org_height = avctx->coded_height;
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avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
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avctx->colorspace = AVCOL_SPC_BT470BG;
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s->hwaccel_pix_fmt = s->hwaccel_sw_pix_fmt = AV_PIX_FMT_NONE;
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if ((ret = init_default_huffman_tables(s)) < 0)
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return ret;
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if (s->extern_huff) {
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av_log(avctx, AV_LOG_INFO, "using external huffman table\n");
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if ((ret = init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size * 8)) < 0)
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return ret;
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if (ff_mjpeg_decode_dht(s)) {
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av_log(avctx, AV_LOG_ERROR,
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"error using external huffman table, switching back to internal\n");
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init_default_huffman_tables(s);
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}
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}
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if (avctx->field_order == AV_FIELD_BB) { /* quicktime icefloe 019 */
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s->interlace_polarity = 1; /* bottom field first */
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av_log(avctx, AV_LOG_DEBUG, "bottom field first\n");
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} else if (avctx->field_order == AV_FIELD_UNKNOWN) {
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if (avctx->codec_tag == AV_RL32("MJPG"))
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s->interlace_polarity = 1;
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}
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if ( avctx->extradata_size > 8
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&& AV_RL32(avctx->extradata) == 0x2C
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&& AV_RL32(avctx->extradata+4) == 0x18) {
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parse_avid(s, avctx->extradata, avctx->extradata_size);
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}
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if (avctx->codec->id == AV_CODEC_ID_AMV)
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s->flipped = 1;
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return 0;
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}
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/* quantize tables */
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int ff_mjpeg_decode_dqt(MJpegDecodeContext *s)
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{
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int len, index, i;
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len = get_bits(&s->gb, 16) - 2;
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if (8*len > get_bits_left(&s->gb)) {
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av_log(s->avctx, AV_LOG_ERROR, "dqt: len %d is too large\n", len);
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return AVERROR_INVALIDDATA;
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}
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while (len >= 65) {
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int pr = get_bits(&s->gb, 4);
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if (pr > 1) {
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av_log(s->avctx, AV_LOG_ERROR, "dqt: invalid precision\n");
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return AVERROR_INVALIDDATA;
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}
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index = get_bits(&s->gb, 4);
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if (index >= 4)
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return -1;
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av_log(s->avctx, AV_LOG_DEBUG, "index=%d\n", index);
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/* read quant table */
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for (i = 0; i < 64; i++) {
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s->quant_matrixes[index][i] = get_bits(&s->gb, pr ? 16 : 8);
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if (s->quant_matrixes[index][i] == 0) {
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av_log(s->avctx, AV_LOG_ERROR, "dqt: 0 quant value\n");
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return AVERROR_INVALIDDATA;
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}
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}
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// XXX FIXME fine-tune, and perhaps add dc too
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s->qscale[index] = FFMAX(s->quant_matrixes[index][1],
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s->quant_matrixes[index][8]) >> 1;
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av_log(s->avctx, AV_LOG_DEBUG, "qscale[%d]: %d\n",
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index, s->qscale[index]);
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len -= 1 + 64 * (1+pr);
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}
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return 0;
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}
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/* decode huffman tables and build VLC decoders */
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int ff_mjpeg_decode_dht(MJpegDecodeContext *s)
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{
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int len, index, i, class, n, v, code_max;
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uint8_t bits_table[17];
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uint8_t val_table[256];
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int ret = 0;
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len = get_bits(&s->gb, 16) - 2;
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if (8*len > get_bits_left(&s->gb)) {
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av_log(s->avctx, AV_LOG_ERROR, "dht: len %d is too large\n", len);
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return AVERROR_INVALIDDATA;
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}
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while (len > 0) {
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if (len < 17)
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return AVERROR_INVALIDDATA;
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class = get_bits(&s->gb, 4);
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if (class >= 2)
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return AVERROR_INVALIDDATA;
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index = get_bits(&s->gb, 4);
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if (index >= 4)
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return AVERROR_INVALIDDATA;
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n = 0;
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for (i = 1; i <= 16; i++) {
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bits_table[i] = get_bits(&s->gb, 8);
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n += bits_table[i];
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}
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len -= 17;
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if (len < n || n > 256)
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return AVERROR_INVALIDDATA;
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code_max = 0;
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for (i = 0; i < n; i++) {
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v = get_bits(&s->gb, 8);
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if (v > code_max)
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code_max = v;
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val_table[i] = v;
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}
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len -= n;
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/* build VLC and flush previous vlc if present */
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ff_free_vlc(&s->vlcs[class][index]);
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av_log(s->avctx, AV_LOG_DEBUG, "class=%d index=%d nb_codes=%d\n",
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class, index, code_max + 1);
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if ((ret = build_vlc(&s->vlcs[class][index], bits_table, val_table,
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code_max + 1, 0, class > 0)) < 0)
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return ret;
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if (class > 0) {
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ff_free_vlc(&s->vlcs[2][index]);
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if ((ret = build_vlc(&s->vlcs[2][index], bits_table, val_table,
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code_max + 1, 0, 0)) < 0)
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return ret;
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}
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for (i = 0; i < 16; i++)
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s->raw_huffman_lengths[class][index][i] = bits_table[i + 1];
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for (i = 0; i < 256; i++)
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s->raw_huffman_values[class][index][i] = val_table[i];
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}
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return 0;
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}
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int ff_mjpeg_decode_sof(MJpegDecodeContext *s)
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{
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int len, nb_components, i, width, height, bits, ret, size_change;
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unsigned pix_fmt_id;
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int h_count[MAX_COMPONENTS] = { 0 };
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int v_count[MAX_COMPONENTS] = { 0 };
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s->cur_scan = 0;
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memset(s->upscale_h, 0, sizeof(s->upscale_h));
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memset(s->upscale_v, 0, sizeof(s->upscale_v));
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len = get_bits(&s->gb, 16);
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bits = get_bits(&s->gb, 8);
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if (bits > 16 || bits < 1) {
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av_log(s->avctx, AV_LOG_ERROR, "bits %d is invalid\n", bits);
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return AVERROR_INVALIDDATA;
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}
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if (s->avctx->bits_per_raw_sample != bits) {
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av_log(s->avctx, s->avctx->bits_per_raw_sample > 0 ? AV_LOG_INFO : AV_LOG_DEBUG, "Changing bps from %d to %d\n", s->avctx->bits_per_raw_sample, bits);
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s->avctx->bits_per_raw_sample = bits;
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init_idct(s->avctx);
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}
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if (s->pegasus_rct)
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bits = 9;
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if (bits == 9 && !s->pegasus_rct)
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s->rct = 1; // FIXME ugly
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if(s->lossless && s->avctx->lowres){
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av_log(s->avctx, AV_LOG_ERROR, "lowres is not possible with lossless jpeg\n");
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return -1;
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}
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height = get_bits(&s->gb, 16);
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width = get_bits(&s->gb, 16);
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// HACK for odd_height.mov
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if (s->interlaced && s->width == width && s->height == height + 1)
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height= s->height;
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av_log(s->avctx, AV_LOG_DEBUG, "sof0: picture: %dx%d\n", width, height);
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if (av_image_check_size(width, height, 0, s->avctx) < 0)
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return AVERROR_INVALIDDATA;
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if (s->buf_size && (width + 7) / 8 * ((height + 7) / 8) > s->buf_size * 4LL)
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return AVERROR_INVALIDDATA;
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nb_components = get_bits(&s->gb, 8);
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if (nb_components <= 0 ||
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nb_components > MAX_COMPONENTS)
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return -1;
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if (s->interlaced && (s->bottom_field == !s->interlace_polarity)) {
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if (nb_components != s->nb_components) {
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av_log(s->avctx, AV_LOG_ERROR,
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"nb_components changing in interlaced picture\n");
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return AVERROR_INVALIDDATA;
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}
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}
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if (s->ls && !(bits <= 8 || nb_components == 1)) {
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avpriv_report_missing_feature(s->avctx,
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"JPEG-LS that is not <= 8 "
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"bits/component or 16-bit gray");
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return AVERROR_PATCHWELCOME;
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}
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if (len != 8 + 3 * nb_components) {
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av_log(s->avctx, AV_LOG_ERROR, "decode_sof0: error, len(%d) mismatch %d components\n", len, nb_components);
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return AVERROR_INVALIDDATA;
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}
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s->nb_components = nb_components;
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s->h_max = 1;
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s->v_max = 1;
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for (i = 0; i < nb_components; i++) {
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/* component id */
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s->component_id[i] = get_bits(&s->gb, 8) - 1;
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h_count[i] = get_bits(&s->gb, 4);
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v_count[i] = get_bits(&s->gb, 4);
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/* compute hmax and vmax (only used in interleaved case) */
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if (h_count[i] > s->h_max)
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s->h_max = h_count[i];
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if (v_count[i] > s->v_max)
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s->v_max = v_count[i];
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s->quant_index[i] = get_bits(&s->gb, 8);
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if (s->quant_index[i] >= 4) {
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av_log(s->avctx, AV_LOG_ERROR, "quant_index is invalid\n");
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return AVERROR_INVALIDDATA;
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}
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if (!h_count[i] || !v_count[i]) {
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av_log(s->avctx, AV_LOG_ERROR,
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"Invalid sampling factor in component %d %d:%d\n",
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i, h_count[i], v_count[i]);
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return AVERROR_INVALIDDATA;
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}
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av_log(s->avctx, AV_LOG_DEBUG, "component %d %d:%d id: %d quant:%d\n",
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i, h_count[i], v_count[i],
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s->component_id[i], s->quant_index[i]);
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}
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if ( nb_components == 4
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&& s->component_id[0] == 'C' - 1
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&& s->component_id[1] == 'M' - 1
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&& s->component_id[2] == 'Y' - 1
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&& s->component_id[3] == 'K' - 1)
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s->adobe_transform = 0;
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if (s->ls && (s->h_max > 1 || s->v_max > 1)) {
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avpriv_report_missing_feature(s->avctx, "Subsampling in JPEG-LS");
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return AVERROR_PATCHWELCOME;
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}
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if (s->bayer) {
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if (nb_components == 2) {
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/* Bayer images embedded in DNGs can contain 2 interleaved components and the
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width stored in their SOF3 markers is the width of each one. We only output
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a single component, therefore we need to adjust the output image width. We
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handle the deinterleaving (but not the debayering) in this file. */
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width *= 2;
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}
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/* They can also contain 1 component, which is double the width and half the height
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of the final image (rows are interleaved). We don't handle the decoding in this
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file, but leave that to the TIFF/DNG decoder. */
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}
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/* if different size, realloc/alloc picture */
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if (width != s->width || height != s->height || bits != s->bits ||
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memcmp(s->h_count, h_count, sizeof(h_count)) ||
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memcmp(s->v_count, v_count, sizeof(v_count))) {
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size_change = 1;
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s->width = width;
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s->height = height;
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s->bits = bits;
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memcpy(s->h_count, h_count, sizeof(h_count));
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memcpy(s->v_count, v_count, sizeof(v_count));
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s->interlaced = 0;
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s->got_picture = 0;
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|
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/* test interlaced mode */
|
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if (s->first_picture &&
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(s->multiscope != 2 || s->avctx->time_base.den >= 25 * s->avctx->time_base.num) &&
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s->org_height != 0 &&
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s->height < ((s->org_height * 3) / 4)) {
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|
s->interlaced = 1;
|
|
s->bottom_field = s->interlace_polarity;
|
|
s->picture_ptr->interlaced_frame = 1;
|
|
s->picture_ptr->top_field_first = !s->interlace_polarity;
|
|
height *= 2;
|
|
}
|
|
|
|
ret = ff_set_dimensions(s->avctx, width, height);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
s->first_picture = 0;
|
|
} else {
|
|
size_change = 0;
|
|
}
|
|
|
|
if (s->got_picture && s->interlaced && (s->bottom_field == !s->interlace_polarity)) {
|
|
if (s->progressive) {
|
|
avpriv_request_sample(s->avctx, "progressively coded interlaced picture");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
} else {
|
|
if (s->v_max == 1 && s->h_max == 1 && s->lossless==1 && (nb_components==3 || nb_components==4))
|
|
s->rgb = 1;
|
|
else if (!s->lossless)
|
|
s->rgb = 0;
|
|
/* XXX: not complete test ! */
|
|
pix_fmt_id = ((unsigned)s->h_count[0] << 28) | (s->v_count[0] << 24) |
|
|
(s->h_count[1] << 20) | (s->v_count[1] << 16) |
|
|
(s->h_count[2] << 12) | (s->v_count[2] << 8) |
|
|
(s->h_count[3] << 4) | s->v_count[3];
|
|
av_log(s->avctx, AV_LOG_DEBUG, "pix fmt id %x\n", pix_fmt_id);
|
|
/* NOTE we do not allocate pictures large enough for the possible
|
|
* padding of h/v_count being 4 */
|
|
if (!(pix_fmt_id & 0xD0D0D0D0))
|
|
pix_fmt_id -= (pix_fmt_id & 0xF0F0F0F0) >> 1;
|
|
if (!(pix_fmt_id & 0x0D0D0D0D))
|
|
pix_fmt_id -= (pix_fmt_id & 0x0F0F0F0F) >> 1;
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
int j = 6 + (i&1) - (i&6);
|
|
int is = (pix_fmt_id >> (4*i)) & 0xF;
|
|
int js = (pix_fmt_id >> (4*j)) & 0xF;
|
|
|
|
if (is == 1 && js != 2 && (i < 2 || i > 5))
|
|
js = (pix_fmt_id >> ( 8 + 4*(i&1))) & 0xF;
|
|
if (is == 1 && js != 2 && (i < 2 || i > 5))
|
|
js = (pix_fmt_id >> (16 + 4*(i&1))) & 0xF;
|
|
|
|
if (is == 1 && js == 2) {
|
|
if (i & 1) s->upscale_h[j/2] = 1;
|
|
else s->upscale_v[j/2] = 1;
|
|
}
|
|
}
|
|
|
|
if (s->bayer) {
|
|
if (pix_fmt_id != 0x11110000 && pix_fmt_id != 0x11000000)
|
|
goto unk_pixfmt;
|
|
}
|
|
|
|
switch (pix_fmt_id) {
|
|
case 0x11110000: /* for bayer-encoded huffman lossless JPEGs embedded in DNGs */
|
|
if (!s->bayer)
|
|
goto unk_pixfmt;
|
|
s->avctx->pix_fmt = AV_PIX_FMT_GRAY16LE;
|
|
break;
|
|
case 0x11111100:
|
|
if (s->rgb)
|
|
s->avctx->pix_fmt = s->bits <= 9 ? AV_PIX_FMT_BGR24 : AV_PIX_FMT_BGR48;
|
|
else {
|
|
if ( s->adobe_transform == 0
|
|
|| s->component_id[0] == 'R' - 1 && s->component_id[1] == 'G' - 1 && s->component_id[2] == 'B' - 1) {
|
|
s->avctx->pix_fmt = s->bits <= 8 ? AV_PIX_FMT_GBRP : AV_PIX_FMT_GBRP16;
|
|
} else {
|
|
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV444P : AV_PIX_FMT_YUVJ444P;
|
|
else s->avctx->pix_fmt = AV_PIX_FMT_YUV444P16;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
}
|
|
}
|
|
av_assert0(s->nb_components == 3);
|
|
break;
|
|
case 0x11111111:
|
|
if (s->rgb)
|
|
s->avctx->pix_fmt = s->bits <= 9 ? AV_PIX_FMT_ABGR : AV_PIX_FMT_RGBA64;
|
|
else {
|
|
if (s->adobe_transform == 0 && s->bits <= 8) {
|
|
s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
|
|
} else {
|
|
s->avctx->pix_fmt = s->bits <= 8 ? AV_PIX_FMT_YUVA444P : AV_PIX_FMT_YUVA444P16;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
}
|
|
}
|
|
av_assert0(s->nb_components == 4);
|
|
break;
|
|
case 0x22111122:
|
|
case 0x22111111:
|
|
if (s->adobe_transform == 0 && s->bits <= 8) {
|
|
s->avctx->pix_fmt = AV_PIX_FMT_GBRAP;
|
|
s->upscale_v[1] = s->upscale_v[2] = 1;
|
|
s->upscale_h[1] = s->upscale_h[2] = 1;
|
|
} else if (s->adobe_transform == 2 && s->bits <= 8) {
|
|
s->avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
|
|
s->upscale_v[1] = s->upscale_v[2] = 1;
|
|
s->upscale_h[1] = s->upscale_h[2] = 1;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
} else {
|
|
if (s->bits <= 8) s->avctx->pix_fmt = AV_PIX_FMT_YUVA420P;
|
|
else s->avctx->pix_fmt = AV_PIX_FMT_YUVA420P16;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
}
|
|
av_assert0(s->nb_components == 4);
|
|
break;
|
|
case 0x12121100:
|
|
case 0x22122100:
|
|
case 0x21211100:
|
|
case 0x22211200:
|
|
case 0x22221100:
|
|
case 0x22112200:
|
|
case 0x11222200:
|
|
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV444P : AV_PIX_FMT_YUVJ444P;
|
|
else
|
|
goto unk_pixfmt;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
break;
|
|
case 0x11000000:
|
|
case 0x13000000:
|
|
case 0x14000000:
|
|
case 0x31000000:
|
|
case 0x33000000:
|
|
case 0x34000000:
|
|
case 0x41000000:
|
|
case 0x43000000:
|
|
case 0x44000000:
|
|
if(s->bits <= 8)
|
|
s->avctx->pix_fmt = AV_PIX_FMT_GRAY8;
|
|
else
|
|
s->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
|
|
break;
|
|
case 0x12111100:
|
|
case 0x14121200:
|
|
case 0x14111100:
|
|
case 0x22211100:
|
|
case 0x22112100:
|
|
if (s->component_id[0] == 'Q' && s->component_id[1] == 'F' && s->component_id[2] == 'A') {
|
|
if (s->bits <= 8) s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
|
|
else
|
|
goto unk_pixfmt;
|
|
s->upscale_v[0] = s->upscale_v[1] = 1;
|
|
} else {
|
|
if (pix_fmt_id == 0x14111100)
|
|
s->upscale_v[1] = s->upscale_v[2] = 1;
|
|
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV440P : AV_PIX_FMT_YUVJ440P;
|
|
else
|
|
goto unk_pixfmt;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
}
|
|
break;
|
|
case 0x21111100:
|
|
if (s->component_id[0] == 'Q' && s->component_id[1] == 'F' && s->component_id[2] == 'A') {
|
|
if (s->bits <= 8) s->avctx->pix_fmt = AV_PIX_FMT_GBRP;
|
|
else
|
|
goto unk_pixfmt;
|
|
s->upscale_h[0] = s->upscale_h[1] = 1;
|
|
} else {
|
|
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV422P : AV_PIX_FMT_YUVJ422P;
|
|
else s->avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
}
|
|
break;
|
|
case 0x31111100:
|
|
if (s->bits > 8)
|
|
goto unk_pixfmt;
|
|
s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV444P : AV_PIX_FMT_YUVJ444P;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
s->upscale_h[1] = s->upscale_h[2] = 2;
|
|
break;
|
|
case 0x22121100:
|
|
case 0x22111200:
|
|
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV422P : AV_PIX_FMT_YUVJ422P;
|
|
else
|
|
goto unk_pixfmt;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
break;
|
|
case 0x22111100:
|
|
case 0x23111100:
|
|
case 0x42111100:
|
|
case 0x24111100:
|
|
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV420P : AV_PIX_FMT_YUVJ420P;
|
|
else s->avctx->pix_fmt = AV_PIX_FMT_YUV420P16;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
if (pix_fmt_id == 0x42111100) {
|
|
if (s->bits > 8)
|
|
goto unk_pixfmt;
|
|
s->upscale_h[1] = s->upscale_h[2] = 1;
|
|
} else if (pix_fmt_id == 0x24111100) {
|
|
if (s->bits > 8)
|
|
goto unk_pixfmt;
|
|
s->upscale_v[1] = s->upscale_v[2] = 1;
|
|
} else if (pix_fmt_id == 0x23111100) {
|
|
if (s->bits > 8)
|
|
goto unk_pixfmt;
|
|
s->upscale_v[1] = s->upscale_v[2] = 2;
|
|
}
|
|
break;
|
|
case 0x41111100:
|
|
if (s->bits <= 8) s->avctx->pix_fmt = s->cs_itu601 ? AV_PIX_FMT_YUV411P : AV_PIX_FMT_YUVJ411P;
|
|
else
|
|
goto unk_pixfmt;
|
|
s->avctx->color_range = s->cs_itu601 ? AVCOL_RANGE_MPEG : AVCOL_RANGE_JPEG;
|
|
break;
|
|
default:
|
|
unk_pixfmt:
|
|
avpriv_report_missing_feature(s->avctx, "Pixel format 0x%x bits:%d", pix_fmt_id, s->bits);
|
|
memset(s->upscale_h, 0, sizeof(s->upscale_h));
|
|
memset(s->upscale_v, 0, sizeof(s->upscale_v));
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
if ((AV_RB32(s->upscale_h) || AV_RB32(s->upscale_v)) && s->avctx->lowres) {
|
|
avpriv_report_missing_feature(s->avctx, "Lowres for weird subsampling");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
if ((AV_RB32(s->upscale_h) || AV_RB32(s->upscale_v)) && s->progressive && s->avctx->pix_fmt == AV_PIX_FMT_GBRP) {
|
|
avpriv_report_missing_feature(s->avctx, "progressive for weird subsampling");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
if (s->ls) {
|
|
memset(s->upscale_h, 0, sizeof(s->upscale_h));
|
|
memset(s->upscale_v, 0, sizeof(s->upscale_v));
|
|
if (s->nb_components == 3) {
|
|
s->avctx->pix_fmt = AV_PIX_FMT_RGB24;
|
|
} else if (s->nb_components != 1) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "Unsupported number of components %d\n", s->nb_components);
|
|
return AVERROR_PATCHWELCOME;
|
|
} else if (s->palette_index && s->bits <= 8)
|
|
s->avctx->pix_fmt = AV_PIX_FMT_PAL8;
|
|
else if (s->bits <= 8)
|
|
s->avctx->pix_fmt = AV_PIX_FMT_GRAY8;
|
|
else
|
|
s->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
|
|
}
|
|
|
|
s->pix_desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
|
|
if (!s->pix_desc) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "Could not get a pixel format descriptor.\n");
|
|
return AVERROR_BUG;
|
|
}
|
|
|
|
if (s->avctx->pix_fmt == s->hwaccel_sw_pix_fmt && !size_change) {
|
|
s->avctx->pix_fmt = s->hwaccel_pix_fmt;
|
|
} else {
|
|
enum AVPixelFormat pix_fmts[] = {
|
|
#if CONFIG_MJPEG_NVDEC_HWACCEL
|
|
AV_PIX_FMT_CUDA,
|
|
#endif
|
|
#if CONFIG_MJPEG_VAAPI_HWACCEL
|
|
AV_PIX_FMT_VAAPI,
|
|
#endif
|
|
s->avctx->pix_fmt,
|
|
AV_PIX_FMT_NONE,
|
|
};
|
|
s->hwaccel_pix_fmt = ff_get_format(s->avctx, pix_fmts);
|
|
if (s->hwaccel_pix_fmt < 0)
|
|
return AVERROR(EINVAL);
|
|
|
|
s->hwaccel_sw_pix_fmt = s->avctx->pix_fmt;
|
|
s->avctx->pix_fmt = s->hwaccel_pix_fmt;
|
|
}
|
|
|
|
if (s->avctx->skip_frame == AVDISCARD_ALL) {
|
|
s->picture_ptr->pict_type = AV_PICTURE_TYPE_I;
|
|
s->picture_ptr->key_frame = 1;
|
|
s->got_picture = 1;
|
|
return 0;
|
|
}
|
|
|
|
av_frame_unref(s->picture_ptr);
|
|
if (ff_get_buffer(s->avctx, s->picture_ptr, AV_GET_BUFFER_FLAG_REF) < 0)
|
|
return -1;
|
|
s->picture_ptr->pict_type = AV_PICTURE_TYPE_I;
|
|
s->picture_ptr->key_frame = 1;
|
|
s->got_picture = 1;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
s->linesize[i] = s->picture_ptr->linesize[i] << s->interlaced;
|
|
|
|
ff_dlog(s->avctx, "%d %d %d %d %d %d\n",
|
|
s->width, s->height, s->linesize[0], s->linesize[1],
|
|
s->interlaced, s->avctx->height);
|
|
|
|
}
|
|
|
|
if ((s->rgb && !s->lossless && !s->ls) ||
|
|
(!s->rgb && s->ls && s->nb_components > 1) ||
|
|
(s->avctx->pix_fmt == AV_PIX_FMT_PAL8 && !s->ls)
|
|
) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "Unsupported coding and pixel format combination\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
/* totally blank picture as progressive JPEG will only add details to it */
|
|
if (s->progressive) {
|
|
int bw = (width + s->h_max * 8 - 1) / (s->h_max * 8);
|
|
int bh = (height + s->v_max * 8 - 1) / (s->v_max * 8);
|
|
for (i = 0; i < s->nb_components; i++) {
|
|
int size = bw * bh * s->h_count[i] * s->v_count[i];
|
|
av_freep(&s->blocks[i]);
|
|
av_freep(&s->last_nnz[i]);
|
|
s->blocks[i] = av_mallocz_array(size, sizeof(**s->blocks));
|
|
s->last_nnz[i] = av_mallocz_array(size, sizeof(**s->last_nnz));
|
|
if (!s->blocks[i] || !s->last_nnz[i])
|
|
return AVERROR(ENOMEM);
|
|
s->block_stride[i] = bw * s->h_count[i];
|
|
}
|
|
memset(s->coefs_finished, 0, sizeof(s->coefs_finished));
|
|
}
|
|
|
|
if (s->avctx->hwaccel) {
|
|
s->hwaccel_picture_private =
|
|
av_mallocz(s->avctx->hwaccel->frame_priv_data_size);
|
|
if (!s->hwaccel_picture_private)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ret = s->avctx->hwaccel->start_frame(s->avctx, s->raw_image_buffer,
|
|
s->raw_image_buffer_size);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int mjpeg_decode_dc(MJpegDecodeContext *s, int dc_index)
|
|
{
|
|
int code;
|
|
code = get_vlc2(&s->gb, s->vlcs[0][dc_index].table, 9, 2);
|
|
if (code < 0 || code > 16) {
|
|
av_log(s->avctx, AV_LOG_WARNING,
|
|
"mjpeg_decode_dc: bad vlc: %d:%d (%p)\n",
|
|
0, dc_index, &s->vlcs[0][dc_index]);
|
|
return 0xfffff;
|
|
}
|
|
|
|
if (code)
|
|
return get_xbits(&s->gb, code);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* decode block and dequantize */
|
|
static int decode_block(MJpegDecodeContext *s, int16_t *block, int component,
|
|
int dc_index, int ac_index, uint16_t *quant_matrix)
|
|
{
|
|
int code, i, j, level, val;
|
|
|
|
/* DC coef */
|
|
val = mjpeg_decode_dc(s, dc_index);
|
|
if (val == 0xfffff) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "error dc\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
val = val * (unsigned)quant_matrix[0] + s->last_dc[component];
|
|
val = av_clip_int16(val);
|
|
s->last_dc[component] = val;
|
|
block[0] = val;
|
|
/* AC coefs */
|
|
i = 0;
|
|
{OPEN_READER(re, &s->gb);
|
|
do {
|
|
UPDATE_CACHE(re, &s->gb);
|
|
GET_VLC(code, re, &s->gb, s->vlcs[1][ac_index].table, 9, 2);
|
|
|
|
i += ((unsigned)code) >> 4;
|
|
code &= 0xf;
|
|
if (code) {
|
|
if (code > MIN_CACHE_BITS - 16)
|
|
UPDATE_CACHE(re, &s->gb);
|
|
|
|
{
|
|
int cache = GET_CACHE(re, &s->gb);
|
|
int sign = (~cache) >> 31;
|
|
level = (NEG_USR32(sign ^ cache,code) ^ sign) - sign;
|
|
}
|
|
|
|
LAST_SKIP_BITS(re, &s->gb, code);
|
|
|
|
if (i > 63) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "error count: %d\n", i);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
j = s->scantable.permutated[i];
|
|
block[j] = level * quant_matrix[i];
|
|
}
|
|
} while (i < 63);
|
|
CLOSE_READER(re, &s->gb);}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode_dc_progressive(MJpegDecodeContext *s, int16_t *block,
|
|
int component, int dc_index,
|
|
uint16_t *quant_matrix, int Al)
|
|
{
|
|
unsigned val;
|
|
s->bdsp.clear_block(block);
|
|
val = mjpeg_decode_dc(s, dc_index);
|
|
if (val == 0xfffff) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "error dc\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
val = (val * (quant_matrix[0] << Al)) + s->last_dc[component];
|
|
s->last_dc[component] = val;
|
|
block[0] = val;
|
|
return 0;
|
|
}
|
|
|
|
/* decode block and dequantize - progressive JPEG version */
|
|
static int decode_block_progressive(MJpegDecodeContext *s, int16_t *block,
|
|
uint8_t *last_nnz, int ac_index,
|
|
uint16_t *quant_matrix,
|
|
int ss, int se, int Al, int *EOBRUN)
|
|
{
|
|
int code, i, j, val, run;
|
|
unsigned level;
|
|
|
|
if (*EOBRUN) {
|
|
(*EOBRUN)--;
|
|
return 0;
|
|
}
|
|
|
|
{
|
|
OPEN_READER(re, &s->gb);
|
|
for (i = ss; ; i++) {
|
|
UPDATE_CACHE(re, &s->gb);
|
|
GET_VLC(code, re, &s->gb, s->vlcs[2][ac_index].table, 9, 2);
|
|
|
|
run = ((unsigned) code) >> 4;
|
|
code &= 0xF;
|
|
if (code) {
|
|
i += run;
|
|
if (code > MIN_CACHE_BITS - 16)
|
|
UPDATE_CACHE(re, &s->gb);
|
|
|
|
{
|
|
int cache = GET_CACHE(re, &s->gb);
|
|
int sign = (~cache) >> 31;
|
|
level = (NEG_USR32(sign ^ cache,code) ^ sign) - sign;
|
|
}
|
|
|
|
LAST_SKIP_BITS(re, &s->gb, code);
|
|
|
|
if (i >= se) {
|
|
if (i == se) {
|
|
j = s->scantable.permutated[se];
|
|
block[j] = level * (quant_matrix[se] << Al);
|
|
break;
|
|
}
|
|
av_log(s->avctx, AV_LOG_ERROR, "error count: %d\n", i);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
j = s->scantable.permutated[i];
|
|
block[j] = level * (quant_matrix[i] << Al);
|
|
} else {
|
|
if (run == 0xF) {// ZRL - skip 15 coefficients
|
|
i += 15;
|
|
if (i >= se) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "ZRL overflow: %d\n", i);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
} else {
|
|
val = (1 << run);
|
|
if (run) {
|
|
UPDATE_CACHE(re, &s->gb);
|
|
val += NEG_USR32(GET_CACHE(re, &s->gb), run);
|
|
LAST_SKIP_BITS(re, &s->gb, run);
|
|
}
|
|
*EOBRUN = val - 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
CLOSE_READER(re, &s->gb);
|
|
}
|
|
|
|
if (i > *last_nnz)
|
|
*last_nnz = i;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define REFINE_BIT(j) { \
|
|
UPDATE_CACHE(re, &s->gb); \
|
|
sign = block[j] >> 15; \
|
|
block[j] += SHOW_UBITS(re, &s->gb, 1) * \
|
|
((quant_matrix[i] ^ sign) - sign) << Al; \
|
|
LAST_SKIP_BITS(re, &s->gb, 1); \
|
|
}
|
|
|
|
#define ZERO_RUN \
|
|
for (; ; i++) { \
|
|
if (i > last) { \
|
|
i += run; \
|
|
if (i > se) { \
|
|
av_log(s->avctx, AV_LOG_ERROR, "error count: %d\n", i); \
|
|
return -1; \
|
|
} \
|
|
break; \
|
|
} \
|
|
j = s->scantable.permutated[i]; \
|
|
if (block[j]) \
|
|
REFINE_BIT(j) \
|
|
else if (run-- == 0) \
|
|
break; \
|
|
}
|
|
|
|
/* decode block and dequantize - progressive JPEG refinement pass */
|
|
static int decode_block_refinement(MJpegDecodeContext *s, int16_t *block,
|
|
uint8_t *last_nnz,
|
|
int ac_index, uint16_t *quant_matrix,
|
|
int ss, int se, int Al, int *EOBRUN)
|
|
{
|
|
int code, i = ss, j, sign, val, run;
|
|
int last = FFMIN(se, *last_nnz);
|
|
|
|
OPEN_READER(re, &s->gb);
|
|
if (*EOBRUN) {
|
|
(*EOBRUN)--;
|
|
} else {
|
|
for (; ; i++) {
|
|
UPDATE_CACHE(re, &s->gb);
|
|
GET_VLC(code, re, &s->gb, s->vlcs[2][ac_index].table, 9, 2);
|
|
|
|
if (code & 0xF) {
|
|
run = ((unsigned) code) >> 4;
|
|
UPDATE_CACHE(re, &s->gb);
|
|
val = SHOW_UBITS(re, &s->gb, 1);
|
|
LAST_SKIP_BITS(re, &s->gb, 1);
|
|
ZERO_RUN;
|
|
j = s->scantable.permutated[i];
|
|
val--;
|
|
block[j] = ((quant_matrix[i] << Al) ^ val) - val;
|
|
if (i == se) {
|
|
if (i > *last_nnz)
|
|
*last_nnz = i;
|
|
CLOSE_READER(re, &s->gb);
|
|
return 0;
|
|
}
|
|
} else {
|
|
run = ((unsigned) code) >> 4;
|
|
if (run == 0xF) {
|
|
ZERO_RUN;
|
|
} else {
|
|
val = run;
|
|
run = (1 << run);
|
|
if (val) {
|
|
UPDATE_CACHE(re, &s->gb);
|
|
run += SHOW_UBITS(re, &s->gb, val);
|
|
LAST_SKIP_BITS(re, &s->gb, val);
|
|
}
|
|
*EOBRUN = run - 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (i > *last_nnz)
|
|
*last_nnz = i;
|
|
}
|
|
|
|
for (; i <= last; i++) {
|
|
j = s->scantable.permutated[i];
|
|
if (block[j])
|
|
REFINE_BIT(j)
|
|
}
|
|
CLOSE_READER(re, &s->gb);
|
|
|
|
return 0;
|
|
}
|
|
#undef REFINE_BIT
|
|
#undef ZERO_RUN
|
|
|
|
static int handle_rstn(MJpegDecodeContext *s, int nb_components)
|
|
{
|
|
int i;
|
|
int reset = 0;
|
|
|
|
if (s->restart_interval) {
|
|
s->restart_count--;
|
|
if(s->restart_count == 0 && s->avctx->codec_id == AV_CODEC_ID_THP){
|
|
align_get_bits(&s->gb);
|
|
for (i = 0; i < nb_components; i++) /* reset dc */
|
|
s->last_dc[i] = (4 << s->bits);
|
|
}
|
|
|
|
i = 8 + ((-get_bits_count(&s->gb)) & 7);
|
|
/* skip RSTn */
|
|
if (s->restart_count == 0) {
|
|
if( show_bits(&s->gb, i) == (1 << i) - 1
|
|
|| show_bits(&s->gb, i) == 0xFF) {
|
|
int pos = get_bits_count(&s->gb);
|
|
align_get_bits(&s->gb);
|
|
while (get_bits_left(&s->gb) >= 8 && show_bits(&s->gb, 8) == 0xFF)
|
|
skip_bits(&s->gb, 8);
|
|
if (get_bits_left(&s->gb) >= 8 && (get_bits(&s->gb, 8) & 0xF8) == 0xD0) {
|
|
for (i = 0; i < nb_components; i++) /* reset dc */
|
|
s->last_dc[i] = (4 << s->bits);
|
|
reset = 1;
|
|
} else
|
|
skip_bits_long(&s->gb, pos - get_bits_count(&s->gb));
|
|
}
|
|
}
|
|
}
|
|
return reset;
|
|
}
|
|
|
|
/* Handles 1 to 4 components */
|
|
static int ljpeg_decode_rgb_scan(MJpegDecodeContext *s, int nb_components, int predictor, int point_transform)
|
|
{
|
|
int i, mb_x, mb_y;
|
|
unsigned width;
|
|
uint16_t (*buffer)[4];
|
|
int left[4], top[4], topleft[4];
|
|
const int linesize = s->linesize[0];
|
|
const int mask = ((1 << s->bits) - 1) << point_transform;
|
|
int resync_mb_y = 0;
|
|
int resync_mb_x = 0;
|
|
int vpred[6];
|
|
|
|
if (!s->bayer && s->nb_components < 3)
|
|
return AVERROR_INVALIDDATA;
|
|
if (s->bayer && s->nb_components > 2)
|
|
return AVERROR_INVALIDDATA;
|
|
if (s->nb_components <= 0 || s->nb_components > 4)
|
|
return AVERROR_INVALIDDATA;
|
|
if (s->v_max != 1 || s->h_max != 1 || !s->lossless)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
|
|
s->restart_count = s->restart_interval;
|
|
|
|
if (s->restart_interval == 0)
|
|
s->restart_interval = INT_MAX;
|
|
|
|
if (s->bayer)
|
|
width = s->mb_width / nb_components; /* Interleaved, width stored is the total so need to divide */
|
|
else
|
|
width = s->mb_width;
|
|
|
|
av_fast_malloc(&s->ljpeg_buffer, &s->ljpeg_buffer_size, width * 4 * sizeof(s->ljpeg_buffer[0][0]));
|
|
if (!s->ljpeg_buffer)
|
|
return AVERROR(ENOMEM);
|
|
|
|
buffer = s->ljpeg_buffer;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
buffer[0][i] = 1 << (s->bits - 1);
|
|
|
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
|
|
uint8_t *ptr = s->picture_ptr->data[0] + (linesize * mb_y);
|
|
|
|
if (s->interlaced && s->bottom_field)
|
|
ptr += linesize >> 1;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
top[i] = left[i] = topleft[i] = buffer[0][i];
|
|
|
|
if ((mb_y * s->width) % s->restart_interval == 0) {
|
|
for (i = 0; i < 6; i++)
|
|
vpred[i] = 1 << (s->bits-1);
|
|
}
|
|
|
|
for (mb_x = 0; mb_x < width; mb_x++) {
|
|
int modified_predictor = predictor;
|
|
|
|
if (get_bits_left(&s->gb) < 1) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "bitstream end in rgb_scan\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (s->restart_interval && !s->restart_count){
|
|
s->restart_count = s->restart_interval;
|
|
resync_mb_x = mb_x;
|
|
resync_mb_y = mb_y;
|
|
for(i=0; i<4; i++)
|
|
top[i] = left[i]= topleft[i]= 1 << (s->bits - 1);
|
|
}
|
|
if (mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x || !mb_x)
|
|
modified_predictor = 1;
|
|
|
|
for (i=0;i<nb_components;i++) {
|
|
int pred, dc;
|
|
|
|
topleft[i] = top[i];
|
|
top[i] = buffer[mb_x][i];
|
|
|
|
dc = mjpeg_decode_dc(s, s->dc_index[i]);
|
|
if(dc == 0xFFFFF)
|
|
return -1;
|
|
|
|
if (!s->bayer || mb_x) {
|
|
pred = left[i];
|
|
} else { /* This path runs only for the first line in bayer images */
|
|
vpred[i] += dc;
|
|
pred = vpred[i] - dc;
|
|
}
|
|
|
|
PREDICT(pred, topleft[i], top[i], pred, modified_predictor);
|
|
|
|
left[i] = buffer[mb_x][i] =
|
|
mask & (pred + (unsigned)(dc * (1 << point_transform)));
|
|
}
|
|
|
|
if (s->restart_interval && !--s->restart_count) {
|
|
align_get_bits(&s->gb);
|
|
skip_bits(&s->gb, 16); /* skip RSTn */
|
|
}
|
|
}
|
|
if (s->rct && s->nb_components == 4) {
|
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
ptr[4*mb_x + 2] = buffer[mb_x][0] - ((buffer[mb_x][1] + buffer[mb_x][2] - 0x200) >> 2);
|
|
ptr[4*mb_x + 1] = buffer[mb_x][1] + ptr[4*mb_x + 2];
|
|
ptr[4*mb_x + 3] = buffer[mb_x][2] + ptr[4*mb_x + 2];
|
|
ptr[4*mb_x + 0] = buffer[mb_x][3];
|
|
}
|
|
} else if (s->nb_components == 4) {
|
|
for(i=0; i<nb_components; i++) {
|
|
int c= s->comp_index[i];
|
|
if (s->bits <= 8) {
|
|
for(mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
ptr[4*mb_x+3-c] = buffer[mb_x][i];
|
|
}
|
|
} else if(s->bits == 9) {
|
|
return AVERROR_PATCHWELCOME;
|
|
} else {
|
|
for(mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
((uint16_t*)ptr)[4*mb_x+c] = buffer[mb_x][i];
|
|
}
|
|
}
|
|
}
|
|
} else if (s->rct) {
|
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
ptr[3*mb_x + 1] = buffer[mb_x][0] - ((buffer[mb_x][1] + buffer[mb_x][2] - 0x200) >> 2);
|
|
ptr[3*mb_x + 0] = buffer[mb_x][1] + ptr[3*mb_x + 1];
|
|
ptr[3*mb_x + 2] = buffer[mb_x][2] + ptr[3*mb_x + 1];
|
|
}
|
|
} else if (s->pegasus_rct) {
|
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
ptr[3*mb_x + 1] = buffer[mb_x][0] - ((buffer[mb_x][1] + buffer[mb_x][2]) >> 2);
|
|
ptr[3*mb_x + 0] = buffer[mb_x][1] + ptr[3*mb_x + 1];
|
|
ptr[3*mb_x + 2] = buffer[mb_x][2] + ptr[3*mb_x + 1];
|
|
}
|
|
} else if (s->bayer) {
|
|
if (nb_components == 1) {
|
|
/* Leave decoding to the TIFF/DNG decoder (see comment in ff_mjpeg_decode_sof) */
|
|
for (mb_x = 0; mb_x < width; mb_x++)
|
|
((uint16_t*)ptr)[mb_x] = buffer[mb_x][0];
|
|
} else if (nb_components == 2) {
|
|
for (mb_x = 0; mb_x < width; mb_x++) {
|
|
((uint16_t*)ptr)[2*mb_x + 0] = buffer[mb_x][0];
|
|
((uint16_t*)ptr)[2*mb_x + 1] = buffer[mb_x][1];
|
|
}
|
|
}
|
|
} else {
|
|
for(i=0; i<nb_components; i++) {
|
|
int c= s->comp_index[i];
|
|
if (s->bits <= 8) {
|
|
for(mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
ptr[3*mb_x+2-c] = buffer[mb_x][i];
|
|
}
|
|
} else if(s->bits == 9) {
|
|
return AVERROR_PATCHWELCOME;
|
|
} else {
|
|
for(mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
((uint16_t*)ptr)[3*mb_x+2-c] = buffer[mb_x][i];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int ljpeg_decode_yuv_scan(MJpegDecodeContext *s, int predictor,
|
|
int point_transform, int nb_components)
|
|
{
|
|
int i, mb_x, mb_y, mask;
|
|
int bits= (s->bits+7)&~7;
|
|
int resync_mb_y = 0;
|
|
int resync_mb_x = 0;
|
|
|
|
point_transform += bits - s->bits;
|
|
mask = ((1 << s->bits) - 1) << point_transform;
|
|
|
|
av_assert0(nb_components>=1 && nb_components<=4);
|
|
|
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
|
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
if (get_bits_left(&s->gb) < 1) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "bitstream end in yuv_scan\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (s->restart_interval && !s->restart_count){
|
|
s->restart_count = s->restart_interval;
|
|
resync_mb_x = mb_x;
|
|
resync_mb_y = mb_y;
|
|
}
|
|
|
|
if(!mb_x || mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x || s->interlaced){
|
|
int toprow = mb_y == resync_mb_y || mb_y == resync_mb_y+1 && mb_x < resync_mb_x;
|
|
int leftcol = !mb_x || mb_y == resync_mb_y && mb_x == resync_mb_x;
|
|
for (i = 0; i < nb_components; i++) {
|
|
uint8_t *ptr;
|
|
uint16_t *ptr16;
|
|
int n, h, v, x, y, c, j, linesize;
|
|
n = s->nb_blocks[i];
|
|
c = s->comp_index[i];
|
|
h = s->h_scount[i];
|
|
v = s->v_scount[i];
|
|
x = 0;
|
|
y = 0;
|
|
linesize= s->linesize[c];
|
|
|
|
if(bits>8) linesize /= 2;
|
|
|
|
for(j=0; j<n; j++) {
|
|
int pred, dc;
|
|
|
|
dc = mjpeg_decode_dc(s, s->dc_index[i]);
|
|
if(dc == 0xFFFFF)
|
|
return -1;
|
|
if ( h * mb_x + x >= s->width
|
|
|| v * mb_y + y >= s->height) {
|
|
// Nothing to do
|
|
} else if (bits<=8) {
|
|
ptr = s->picture_ptr->data[c] + (linesize * (v * mb_y + y)) + (h * mb_x + x); //FIXME optimize this crap
|
|
if(y==0 && toprow){
|
|
if(x==0 && leftcol){
|
|
pred= 1 << (bits - 1);
|
|
}else{
|
|
pred= ptr[-1];
|
|
}
|
|
}else{
|
|
if(x==0 && leftcol){
|
|
pred= ptr[-linesize];
|
|
}else{
|
|
PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);
|
|
}
|
|
}
|
|
|
|
if (s->interlaced && s->bottom_field)
|
|
ptr += linesize >> 1;
|
|
pred &= mask;
|
|
*ptr= pred + ((unsigned)dc << point_transform);
|
|
}else{
|
|
ptr16 = (uint16_t*)(s->picture_ptr->data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x)); //FIXME optimize this crap
|
|
if(y==0 && toprow){
|
|
if(x==0 && leftcol){
|
|
pred= 1 << (bits - 1);
|
|
}else{
|
|
pred= ptr16[-1];
|
|
}
|
|
}else{
|
|
if(x==0 && leftcol){
|
|
pred= ptr16[-linesize];
|
|
}else{
|
|
PREDICT(pred, ptr16[-linesize-1], ptr16[-linesize], ptr16[-1], predictor);
|
|
}
|
|
}
|
|
|
|
if (s->interlaced && s->bottom_field)
|
|
ptr16 += linesize >> 1;
|
|
pred &= mask;
|
|
*ptr16= pred + ((unsigned)dc << point_transform);
|
|
}
|
|
if (++x == h) {
|
|
x = 0;
|
|
y++;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
for (i = 0; i < nb_components; i++) {
|
|
uint8_t *ptr;
|
|
uint16_t *ptr16;
|
|
int n, h, v, x, y, c, j, linesize, dc;
|
|
n = s->nb_blocks[i];
|
|
c = s->comp_index[i];
|
|
h = s->h_scount[i];
|
|
v = s->v_scount[i];
|
|
x = 0;
|
|
y = 0;
|
|
linesize = s->linesize[c];
|
|
|
|
if(bits>8) linesize /= 2;
|
|
|
|
for (j = 0; j < n; j++) {
|
|
int pred;
|
|
|
|
dc = mjpeg_decode_dc(s, s->dc_index[i]);
|
|
if(dc == 0xFFFFF)
|
|
return -1;
|
|
if ( h * mb_x + x >= s->width
|
|
|| v * mb_y + y >= s->height) {
|
|
// Nothing to do
|
|
} else if (bits<=8) {
|
|
ptr = s->picture_ptr->data[c] +
|
|
(linesize * (v * mb_y + y)) +
|
|
(h * mb_x + x); //FIXME optimize this crap
|
|
PREDICT(pred, ptr[-linesize-1], ptr[-linesize], ptr[-1], predictor);
|
|
|
|
pred &= mask;
|
|
*ptr = pred + ((unsigned)dc << point_transform);
|
|
}else{
|
|
ptr16 = (uint16_t*)(s->picture_ptr->data[c] + 2*(linesize * (v * mb_y + y)) + 2*(h * mb_x + x)); //FIXME optimize this crap
|
|
PREDICT(pred, ptr16[-linesize-1], ptr16[-linesize], ptr16[-1], predictor);
|
|
|
|
pred &= mask;
|
|
*ptr16= pred + ((unsigned)dc << point_transform);
|
|
}
|
|
|
|
if (++x == h) {
|
|
x = 0;
|
|
y++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (s->restart_interval && !--s->restart_count) {
|
|
align_get_bits(&s->gb);
|
|
skip_bits(&s->gb, 16); /* skip RSTn */
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static av_always_inline void mjpeg_copy_block(MJpegDecodeContext *s,
|
|
uint8_t *dst, const uint8_t *src,
|
|
int linesize, int lowres)
|
|
{
|
|
switch (lowres) {
|
|
case 0: s->hdsp.put_pixels_tab[1][0](dst, src, linesize, 8);
|
|
break;
|
|
case 1: copy_block4(dst, src, linesize, linesize, 4);
|
|
break;
|
|
case 2: copy_block2(dst, src, linesize, linesize, 2);
|
|
break;
|
|
case 3: *dst = *src;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void shift_output(MJpegDecodeContext *s, uint8_t *ptr, int linesize)
|
|
{
|
|
int block_x, block_y;
|
|
int size = 8 >> s->avctx->lowres;
|
|
if (s->bits > 8) {
|
|
for (block_y=0; block_y<size; block_y++)
|
|
for (block_x=0; block_x<size; block_x++)
|
|
*(uint16_t*)(ptr + 2*block_x + block_y*linesize) <<= 16 - s->bits;
|
|
} else {
|
|
for (block_y=0; block_y<size; block_y++)
|
|
for (block_x=0; block_x<size; block_x++)
|
|
*(ptr + block_x + block_y*linesize) <<= 8 - s->bits;
|
|
}
|
|
}
|
|
|
|
static int mjpeg_decode_scan(MJpegDecodeContext *s, int nb_components, int Ah,
|
|
int Al, const uint8_t *mb_bitmask,
|
|
int mb_bitmask_size,
|
|
const AVFrame *reference)
|
|
{
|
|
int i, mb_x, mb_y, chroma_h_shift, chroma_v_shift, chroma_width, chroma_height;
|
|
uint8_t *data[MAX_COMPONENTS];
|
|
const uint8_t *reference_data[MAX_COMPONENTS];
|
|
int linesize[MAX_COMPONENTS];
|
|
GetBitContext mb_bitmask_gb = {0}; // initialize to silence gcc warning
|
|
int bytes_per_pixel = 1 + (s->bits > 8);
|
|
|
|
if (mb_bitmask) {
|
|
if (mb_bitmask_size != (s->mb_width * s->mb_height + 7)>>3) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "mb_bitmask_size mismatches\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
init_get_bits(&mb_bitmask_gb, mb_bitmask, s->mb_width * s->mb_height);
|
|
}
|
|
|
|
s->restart_count = 0;
|
|
|
|
av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, &chroma_h_shift,
|
|
&chroma_v_shift);
|
|
chroma_width = AV_CEIL_RSHIFT(s->width, chroma_h_shift);
|
|
chroma_height = AV_CEIL_RSHIFT(s->height, chroma_v_shift);
|
|
|
|
for (i = 0; i < nb_components; i++) {
|
|
int c = s->comp_index[i];
|
|
data[c] = s->picture_ptr->data[c];
|
|
reference_data[c] = reference ? reference->data[c] : NULL;
|
|
linesize[c] = s->linesize[c];
|
|
s->coefs_finished[c] |= 1;
|
|
}
|
|
|
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
|
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++) {
|
|
const int copy_mb = mb_bitmask && !get_bits1(&mb_bitmask_gb);
|
|
|
|
if (s->restart_interval && !s->restart_count)
|
|
s->restart_count = s->restart_interval;
|
|
|
|
if (get_bits_left(&s->gb) < 0) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "overread %d\n",
|
|
-get_bits_left(&s->gb));
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
for (i = 0; i < nb_components; i++) {
|
|
uint8_t *ptr;
|
|
int n, h, v, x, y, c, j;
|
|
int block_offset;
|
|
n = s->nb_blocks[i];
|
|
c = s->comp_index[i];
|
|
h = s->h_scount[i];
|
|
v = s->v_scount[i];
|
|
x = 0;
|
|
y = 0;
|
|
for (j = 0; j < n; j++) {
|
|
block_offset = (((linesize[c] * (v * mb_y + y) * 8) +
|
|
(h * mb_x + x) * 8 * bytes_per_pixel) >> s->avctx->lowres);
|
|
|
|
if (s->interlaced && s->bottom_field)
|
|
block_offset += linesize[c] >> 1;
|
|
if ( 8*(h * mb_x + x) < ((c == 1) || (c == 2) ? chroma_width : s->width)
|
|
&& 8*(v * mb_y + y) < ((c == 1) || (c == 2) ? chroma_height : s->height)) {
|
|
ptr = data[c] + block_offset;
|
|
} else
|
|
ptr = NULL;
|
|
if (!s->progressive) {
|
|
if (copy_mb) {
|
|
if (ptr)
|
|
mjpeg_copy_block(s, ptr, reference_data[c] + block_offset,
|
|
linesize[c], s->avctx->lowres);
|
|
|
|
} else {
|
|
s->bdsp.clear_block(s->block);
|
|
if (decode_block(s, s->block, i,
|
|
s->dc_index[i], s->ac_index[i],
|
|
s->quant_matrixes[s->quant_sindex[i]]) < 0) {
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
"error y=%d x=%d\n", mb_y, mb_x);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (ptr) {
|
|
s->idsp.idct_put(ptr, linesize[c], s->block);
|
|
if (s->bits & 7)
|
|
shift_output(s, ptr, linesize[c]);
|
|
}
|
|
}
|
|
} else {
|
|
int block_idx = s->block_stride[c] * (v * mb_y + y) +
|
|
(h * mb_x + x);
|
|
int16_t *block = s->blocks[c][block_idx];
|
|
if (Ah)
|
|
block[0] += get_bits1(&s->gb) *
|
|
s->quant_matrixes[s->quant_sindex[i]][0] << Al;
|
|
else if (decode_dc_progressive(s, block, i, s->dc_index[i],
|
|
s->quant_matrixes[s->quant_sindex[i]],
|
|
Al) < 0) {
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
"error y=%d x=%d\n", mb_y, mb_x);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
ff_dlog(s->avctx, "mb: %d %d processed\n", mb_y, mb_x);
|
|
ff_dlog(s->avctx, "%d %d %d %d %d %d %d %d \n",
|
|
mb_x, mb_y, x, y, c, s->bottom_field,
|
|
(v * mb_y + y) * 8, (h * mb_x + x) * 8);
|
|
if (++x == h) {
|
|
x = 0;
|
|
y++;
|
|
}
|
|
}
|
|
}
|
|
|
|
handle_rstn(s, nb_components);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mjpeg_decode_scan_progressive_ac(MJpegDecodeContext *s, int ss,
|
|
int se, int Ah, int Al)
|
|
{
|
|
int mb_x, mb_y;
|
|
int EOBRUN = 0;
|
|
int c = s->comp_index[0];
|
|
uint16_t *quant_matrix = s->quant_matrixes[s->quant_sindex[0]];
|
|
|
|
av_assert0(ss>=0 && Ah>=0 && Al>=0);
|
|
if (se < ss || se > 63) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "SS/SE %d/%d is invalid\n", ss, se);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
// s->coefs_finished is a bitmask for coefficients coded
|
|
// ss and se are parameters telling start and end coefficients
|
|
s->coefs_finished[c] |= (2ULL << se) - (1ULL << ss);
|
|
|
|
s->restart_count = 0;
|
|
|
|
for (mb_y = 0; mb_y < s->mb_height; mb_y++) {
|
|
int block_idx = mb_y * s->block_stride[c];
|
|
int16_t (*block)[64] = &s->blocks[c][block_idx];
|
|
uint8_t *last_nnz = &s->last_nnz[c][block_idx];
|
|
if (get_bits_left(&s->gb) <= 0) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "bitstream truncated in mjpeg_decode_scan_progressive_ac\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
for (mb_x = 0; mb_x < s->mb_width; mb_x++, block++, last_nnz++) {
|
|
int ret;
|
|
if (s->restart_interval && !s->restart_count)
|
|
s->restart_count = s->restart_interval;
|
|
|
|
if (Ah)
|
|
ret = decode_block_refinement(s, *block, last_nnz, s->ac_index[0],
|
|
quant_matrix, ss, se, Al, &EOBRUN);
|
|
else
|
|
ret = decode_block_progressive(s, *block, last_nnz, s->ac_index[0],
|
|
quant_matrix, ss, se, Al, &EOBRUN);
|
|
if (ret < 0) {
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
"error y=%d x=%d\n", mb_y, mb_x);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
if (handle_rstn(s, 0))
|
|
EOBRUN = 0;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void mjpeg_idct_scan_progressive_ac(MJpegDecodeContext *s)
|
|
{
|
|
int mb_x, mb_y;
|
|
int c;
|
|
const int bytes_per_pixel = 1 + (s->bits > 8);
|
|
const int block_size = s->lossless ? 1 : 8;
|
|
|
|
for (c = 0; c < s->nb_components; c++) {
|
|
uint8_t *data = s->picture_ptr->data[c];
|
|
int linesize = s->linesize[c];
|
|
int h = s->h_max / s->h_count[c];
|
|
int v = s->v_max / s->v_count[c];
|
|
int mb_width = (s->width + h * block_size - 1) / (h * block_size);
|
|
int mb_height = (s->height + v * block_size - 1) / (v * block_size);
|
|
|
|
if (~s->coefs_finished[c])
|
|
av_log(s->avctx, AV_LOG_WARNING, "component %d is incomplete\n", c);
|
|
|
|
if (s->interlaced && s->bottom_field)
|
|
data += linesize >> 1;
|
|
|
|
for (mb_y = 0; mb_y < mb_height; mb_y++) {
|
|
uint8_t *ptr = data + (mb_y * linesize * 8 >> s->avctx->lowres);
|
|
int block_idx = mb_y * s->block_stride[c];
|
|
int16_t (*block)[64] = &s->blocks[c][block_idx];
|
|
for (mb_x = 0; mb_x < mb_width; mb_x++, block++) {
|
|
s->idsp.idct_put(ptr, linesize, *block);
|
|
if (s->bits & 7)
|
|
shift_output(s, ptr, linesize);
|
|
ptr += bytes_per_pixel*8 >> s->avctx->lowres;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int ff_mjpeg_decode_sos(MJpegDecodeContext *s, const uint8_t *mb_bitmask,
|
|
int mb_bitmask_size, const AVFrame *reference)
|
|
{
|
|
int len, nb_components, i, h, v, predictor, point_transform;
|
|
int index, id, ret;
|
|
const int block_size = s->lossless ? 1 : 8;
|
|
int ilv, prev_shift;
|
|
|
|
if (!s->got_picture) {
|
|
av_log(s->avctx, AV_LOG_WARNING,
|
|
"Can not process SOS before SOF, skipping\n");
|
|
return -1;
|
|
}
|
|
|
|
if (reference) {
|
|
if (reference->width != s->picture_ptr->width ||
|
|
reference->height != s->picture_ptr->height ||
|
|
reference->format != s->picture_ptr->format) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "Reference mismatching\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
|
|
/* XXX: verify len field validity */
|
|
len = get_bits(&s->gb, 16);
|
|
nb_components = get_bits(&s->gb, 8);
|
|
if (nb_components == 0 || nb_components > MAX_COMPONENTS) {
|
|
avpriv_report_missing_feature(s->avctx,
|
|
"decode_sos: nb_components (%d)",
|
|
nb_components);
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
if (len != 6 + 2 * nb_components) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "decode_sos: invalid len (%d)\n", len);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
for (i = 0; i < nb_components; i++) {
|
|
id = get_bits(&s->gb, 8) - 1;
|
|
av_log(s->avctx, AV_LOG_DEBUG, "component: %d\n", id);
|
|
/* find component index */
|
|
for (index = 0; index < s->nb_components; index++)
|
|
if (id == s->component_id[index])
|
|
break;
|
|
if (index == s->nb_components) {
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
"decode_sos: index(%d) out of components\n", index);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
/* Metasoft MJPEG codec has Cb and Cr swapped */
|
|
if (s->avctx->codec_tag == MKTAG('M', 'T', 'S', 'J')
|
|
&& nb_components == 3 && s->nb_components == 3 && i)
|
|
index = 3 - i;
|
|
|
|
s->quant_sindex[i] = s->quant_index[index];
|
|
s->nb_blocks[i] = s->h_count[index] * s->v_count[index];
|
|
s->h_scount[i] = s->h_count[index];
|
|
s->v_scount[i] = s->v_count[index];
|
|
|
|
if((nb_components == 1 || nb_components == 3) && s->nb_components == 3 && s->avctx->pix_fmt == AV_PIX_FMT_GBR24P)
|
|
index = (index+2)%3;
|
|
|
|
s->comp_index[i] = index;
|
|
|
|
s->dc_index[i] = get_bits(&s->gb, 4);
|
|
s->ac_index[i] = get_bits(&s->gb, 4);
|
|
|
|
if (s->dc_index[i] < 0 || s->ac_index[i] < 0 ||
|
|
s->dc_index[i] >= 4 || s->ac_index[i] >= 4)
|
|
goto out_of_range;
|
|
if (!s->vlcs[0][s->dc_index[i]].table || !(s->progressive ? s->vlcs[2][s->ac_index[0]].table : s->vlcs[1][s->ac_index[i]].table))
|
|
goto out_of_range;
|
|
}
|
|
|
|
predictor = get_bits(&s->gb, 8); /* JPEG Ss / lossless JPEG predictor /JPEG-LS NEAR */
|
|
ilv = get_bits(&s->gb, 8); /* JPEG Se / JPEG-LS ILV */
|
|
if(s->avctx->codec_tag != AV_RL32("CJPG")){
|
|
prev_shift = get_bits(&s->gb, 4); /* Ah */
|
|
point_transform = get_bits(&s->gb, 4); /* Al */
|
|
}else
|
|
prev_shift = point_transform = 0;
|
|
|
|
if (nb_components > 1) {
|
|
/* interleaved stream */
|
|
s->mb_width = (s->width + s->h_max * block_size - 1) / (s->h_max * block_size);
|
|
s->mb_height = (s->height + s->v_max * block_size - 1) / (s->v_max * block_size);
|
|
} else if (!s->ls) { /* skip this for JPEG-LS */
|
|
h = s->h_max / s->h_scount[0];
|
|
v = s->v_max / s->v_scount[0];
|
|
s->mb_width = (s->width + h * block_size - 1) / (h * block_size);
|
|
s->mb_height = (s->height + v * block_size - 1) / (v * block_size);
|
|
s->nb_blocks[0] = 1;
|
|
s->h_scount[0] = 1;
|
|
s->v_scount[0] = 1;
|
|
}
|
|
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_DEBUG, "%s %s p:%d >>:%d ilv:%d bits:%d skip:%d %s comp:%d\n",
|
|
s->lossless ? "lossless" : "sequential DCT", s->rgb ? "RGB" : "",
|
|
predictor, point_transform, ilv, s->bits, s->mjpb_skiptosod,
|
|
s->pegasus_rct ? "PRCT" : (s->rct ? "RCT" : ""), nb_components);
|
|
|
|
|
|
/* mjpeg-b can have padding bytes between sos and image data, skip them */
|
|
for (i = s->mjpb_skiptosod; i > 0; i--)
|
|
skip_bits(&s->gb, 8);
|
|
|
|
next_field:
|
|
for (i = 0; i < nb_components; i++)
|
|
s->last_dc[i] = (4 << s->bits);
|
|
|
|
if (s->avctx->hwaccel) {
|
|
int bytes_to_start = get_bits_count(&s->gb) / 8;
|
|
av_assert0(bytes_to_start >= 0 &&
|
|
s->raw_scan_buffer_size >= bytes_to_start);
|
|
|
|
ret = s->avctx->hwaccel->decode_slice(s->avctx,
|
|
s->raw_scan_buffer + bytes_to_start,
|
|
s->raw_scan_buffer_size - bytes_to_start);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
} else if (s->lossless) {
|
|
av_assert0(s->picture_ptr == s->picture);
|
|
if (CONFIG_JPEGLS_DECODER && s->ls) {
|
|
// for () {
|
|
// reset_ls_coding_parameters(s, 0);
|
|
|
|
if ((ret = ff_jpegls_decode_picture(s, predictor,
|
|
point_transform, ilv)) < 0)
|
|
return ret;
|
|
} else {
|
|
if (s->rgb || s->bayer) {
|
|
if ((ret = ljpeg_decode_rgb_scan(s, nb_components, predictor, point_transform)) < 0)
|
|
return ret;
|
|
} else {
|
|
if ((ret = ljpeg_decode_yuv_scan(s, predictor,
|
|
point_transform,
|
|
nb_components)) < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
} else {
|
|
if (s->progressive && predictor) {
|
|
av_assert0(s->picture_ptr == s->picture);
|
|
if ((ret = mjpeg_decode_scan_progressive_ac(s, predictor,
|
|
ilv, prev_shift,
|
|
point_transform)) < 0)
|
|
return ret;
|
|
} else {
|
|
if ((ret = mjpeg_decode_scan(s, nb_components,
|
|
prev_shift, point_transform,
|
|
mb_bitmask, mb_bitmask_size, reference)) < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (s->interlaced &&
|
|
get_bits_left(&s->gb) > 32 &&
|
|
show_bits(&s->gb, 8) == 0xFF) {
|
|
GetBitContext bak = s->gb;
|
|
align_get_bits(&bak);
|
|
if (show_bits(&bak, 16) == 0xFFD1) {
|
|
av_log(s->avctx, AV_LOG_DEBUG, "AVRn interlaced picture marker found\n");
|
|
s->gb = bak;
|
|
skip_bits(&s->gb, 16);
|
|
s->bottom_field ^= 1;
|
|
|
|
goto next_field;
|
|
}
|
|
}
|
|
|
|
emms_c();
|
|
return 0;
|
|
out_of_range:
|
|
av_log(s->avctx, AV_LOG_ERROR, "decode_sos: ac/dc index out of range\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
static int mjpeg_decode_dri(MJpegDecodeContext *s)
|
|
{
|
|
if (get_bits(&s->gb, 16) != 4)
|
|
return AVERROR_INVALIDDATA;
|
|
s->restart_interval = get_bits(&s->gb, 16);
|
|
s->restart_count = 0;
|
|
av_log(s->avctx, AV_LOG_DEBUG, "restart interval: %d\n",
|
|
s->restart_interval);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mjpeg_decode_app(MJpegDecodeContext *s)
|
|
{
|
|
int len, id, i;
|
|
|
|
len = get_bits(&s->gb, 16);
|
|
if (len < 6) {
|
|
if (s->bayer) {
|
|
// Pentax K-1 (digital camera) JPEG images embedded in DNG images contain unknown APP0 markers
|
|
av_log(s->avctx, AV_LOG_WARNING, "skipping APPx (len=%"PRId32") for bayer-encoded image\n", len);
|
|
skip_bits(&s->gb, len);
|
|
return 0;
|
|
} else
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (8 * len > get_bits_left(&s->gb))
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
id = get_bits_long(&s->gb, 32);
|
|
len -= 6;
|
|
|
|
if (s->avctx->debug & FF_DEBUG_STARTCODE)
|
|
av_log(s->avctx, AV_LOG_DEBUG, "APPx (%s / %8X) len=%d\n",
|
|
av_fourcc2str(av_bswap32(id)), id, len);
|
|
|
|
/* Buggy AVID, it puts EOI only at every 10th frame. */
|
|
/* Also, this fourcc is used by non-avid files too, it holds some
|
|
information, but it's always present in AVID-created files. */
|
|
if (id == AV_RB32("AVI1")) {
|
|
/* structure:
|
|
4bytes AVI1
|
|
1bytes polarity
|
|
1bytes always zero
|
|
4bytes field_size
|
|
4bytes field_size_less_padding
|
|
*/
|
|
s->buggy_avid = 1;
|
|
i = get_bits(&s->gb, 8); len--;
|
|
av_log(s->avctx, AV_LOG_DEBUG, "polarity %d\n", i);
|
|
goto out;
|
|
}
|
|
|
|
if (id == AV_RB32("JFIF")) {
|
|
int t_w, t_h, v1, v2;
|
|
if (len < 8)
|
|
goto out;
|
|
skip_bits(&s->gb, 8); /* the trailing zero-byte */
|
|
v1 = get_bits(&s->gb, 8);
|
|
v2 = get_bits(&s->gb, 8);
|
|
skip_bits(&s->gb, 8);
|
|
|
|
s->avctx->sample_aspect_ratio.num = get_bits(&s->gb, 16);
|
|
s->avctx->sample_aspect_ratio.den = get_bits(&s->gb, 16);
|
|
if ( s->avctx->sample_aspect_ratio.num <= 0
|
|
|| s->avctx->sample_aspect_ratio.den <= 0) {
|
|
s->avctx->sample_aspect_ratio.num = 0;
|
|
s->avctx->sample_aspect_ratio.den = 1;
|
|
}
|
|
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO,
|
|
"mjpeg: JFIF header found (version: %x.%x) SAR=%d/%d\n",
|
|
v1, v2,
|
|
s->avctx->sample_aspect_ratio.num,
|
|
s->avctx->sample_aspect_ratio.den);
|
|
|
|
len -= 8;
|
|
if (len >= 2) {
|
|
t_w = get_bits(&s->gb, 8);
|
|
t_h = get_bits(&s->gb, 8);
|
|
if (t_w && t_h) {
|
|
/* skip thumbnail */
|
|
if (len -10 - (t_w * t_h * 3) > 0)
|
|
len -= t_w * t_h * 3;
|
|
}
|
|
len -= 2;
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
if ( id == AV_RB32("Adob")
|
|
&& len >= 7
|
|
&& show_bits(&s->gb, 8) == 'e'
|
|
&& show_bits_long(&s->gb, 32) != AV_RB32("e_CM")) {
|
|
skip_bits(&s->gb, 8); /* 'e' */
|
|
skip_bits(&s->gb, 16); /* version */
|
|
skip_bits(&s->gb, 16); /* flags0 */
|
|
skip_bits(&s->gb, 16); /* flags1 */
|
|
s->adobe_transform = get_bits(&s->gb, 8);
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO, "mjpeg: Adobe header found, transform=%d\n", s->adobe_transform);
|
|
len -= 7;
|
|
goto out;
|
|
}
|
|
|
|
if (id == AV_RB32("LJIF")) {
|
|
int rgb = s->rgb;
|
|
int pegasus_rct = s->pegasus_rct;
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO,
|
|
"Pegasus lossless jpeg header found\n");
|
|
skip_bits(&s->gb, 16); /* version ? */
|
|
skip_bits(&s->gb, 16); /* unknown always 0? */
|
|
skip_bits(&s->gb, 16); /* unknown always 0? */
|
|
skip_bits(&s->gb, 16); /* unknown always 0? */
|
|
switch (i=get_bits(&s->gb, 8)) {
|
|
case 1:
|
|
rgb = 1;
|
|
pegasus_rct = 0;
|
|
break;
|
|
case 2:
|
|
rgb = 1;
|
|
pegasus_rct = 1;
|
|
break;
|
|
default:
|
|
av_log(s->avctx, AV_LOG_ERROR, "unknown colorspace %d\n", i);
|
|
}
|
|
|
|
len -= 9;
|
|
if (s->got_picture)
|
|
if (rgb != s->rgb || pegasus_rct != s->pegasus_rct) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Mismatching LJIF tag\n");
|
|
goto out;
|
|
}
|
|
|
|
s->rgb = rgb;
|
|
s->pegasus_rct = pegasus_rct;
|
|
|
|
goto out;
|
|
}
|
|
if (id == AV_RL32("colr") && len > 0) {
|
|
s->colr = get_bits(&s->gb, 8);
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO, "COLR %d\n", s->colr);
|
|
len --;
|
|
goto out;
|
|
}
|
|
if (id == AV_RL32("xfrm") && len > 0) {
|
|
s->xfrm = get_bits(&s->gb, 8);
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO, "XFRM %d\n", s->xfrm);
|
|
len --;
|
|
goto out;
|
|
}
|
|
|
|
/* JPS extension by VRex */
|
|
if (s->start_code == APP3 && id == AV_RB32("_JPS") && len >= 10) {
|
|
int flags, layout, type;
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO, "_JPSJPS_\n");
|
|
|
|
skip_bits(&s->gb, 32); len -= 4; /* JPS_ */
|
|
skip_bits(&s->gb, 16); len -= 2; /* block length */
|
|
skip_bits(&s->gb, 8); /* reserved */
|
|
flags = get_bits(&s->gb, 8);
|
|
layout = get_bits(&s->gb, 8);
|
|
type = get_bits(&s->gb, 8);
|
|
len -= 4;
|
|
|
|
av_freep(&s->stereo3d);
|
|
s->stereo3d = av_stereo3d_alloc();
|
|
if (!s->stereo3d) {
|
|
goto out;
|
|
}
|
|
if (type == 0) {
|
|
s->stereo3d->type = AV_STEREO3D_2D;
|
|
} else if (type == 1) {
|
|
switch (layout) {
|
|
case 0x01:
|
|
s->stereo3d->type = AV_STEREO3D_LINES;
|
|
break;
|
|
case 0x02:
|
|
s->stereo3d->type = AV_STEREO3D_SIDEBYSIDE;
|
|
break;
|
|
case 0x03:
|
|
s->stereo3d->type = AV_STEREO3D_TOPBOTTOM;
|
|
break;
|
|
}
|
|
if (!(flags & 0x04)) {
|
|
s->stereo3d->flags = AV_STEREO3D_FLAG_INVERT;
|
|
}
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
/* EXIF metadata */
|
|
if (s->start_code == APP1 && id == AV_RB32("Exif") && len >= 2) {
|
|
GetByteContext gbytes;
|
|
int ret, le, ifd_offset, bytes_read;
|
|
const uint8_t *aligned;
|
|
|
|
skip_bits(&s->gb, 16); // skip padding
|
|
len -= 2;
|
|
|
|
// init byte wise reading
|
|
aligned = align_get_bits(&s->gb);
|
|
bytestream2_init(&gbytes, aligned, len);
|
|
|
|
// read TIFF header
|
|
ret = ff_tdecode_header(&gbytes, &le, &ifd_offset);
|
|
if (ret) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "mjpeg: invalid TIFF header in EXIF data\n");
|
|
} else {
|
|
bytestream2_seek(&gbytes, ifd_offset, SEEK_SET);
|
|
|
|
// read 0th IFD and store the metadata
|
|
// (return values > 0 indicate the presence of subimage metadata)
|
|
ret = ff_exif_decode_ifd(s->avctx, &gbytes, le, 0, &s->exif_metadata);
|
|
if (ret < 0) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "mjpeg: error decoding EXIF data\n");
|
|
}
|
|
}
|
|
|
|
bytes_read = bytestream2_tell(&gbytes);
|
|
skip_bits(&s->gb, bytes_read << 3);
|
|
len -= bytes_read;
|
|
|
|
goto out;
|
|
}
|
|
|
|
/* Apple MJPEG-A */
|
|
if ((s->start_code == APP1) && (len > (0x28 - 8))) {
|
|
id = get_bits_long(&s->gb, 32);
|
|
len -= 4;
|
|
/* Apple MJPEG-A */
|
|
if (id == AV_RB32("mjpg")) {
|
|
/* structure:
|
|
4bytes field size
|
|
4bytes pad field size
|
|
4bytes next off
|
|
4bytes quant off
|
|
4bytes huff off
|
|
4bytes image off
|
|
4bytes scan off
|
|
4bytes data off
|
|
*/
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO, "mjpeg: Apple MJPEG-A header found\n");
|
|
}
|
|
}
|
|
|
|
if (s->start_code == APP2 && id == AV_RB32("ICC_") && len >= 10) {
|
|
int id2;
|
|
unsigned seqno;
|
|
unsigned nummarkers;
|
|
|
|
id = get_bits_long(&s->gb, 32);
|
|
id2 = get_bits(&s->gb, 24);
|
|
len -= 7;
|
|
if (id != AV_RB32("PROF") || id2 != AV_RB24("ILE")) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Invalid ICC_PROFILE header in APP2\n");
|
|
goto out;
|
|
}
|
|
|
|
skip_bits(&s->gb, 8);
|
|
seqno = get_bits(&s->gb, 8);
|
|
len -= 2;
|
|
if (seqno == 0) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Invalid sequence number in APP2\n");
|
|
goto out;
|
|
}
|
|
|
|
nummarkers = get_bits(&s->gb, 8);
|
|
len -= 1;
|
|
if (nummarkers == 0) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Invalid number of markers coded in APP2\n");
|
|
goto out;
|
|
} else if (s->iccnum != 0 && nummarkers != s->iccnum) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Mistmatch in coded number of ICC markers between markers\n");
|
|
goto out;
|
|
} else if (seqno > nummarkers) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Mismatching sequence number and coded number of ICC markers\n");
|
|
goto out;
|
|
}
|
|
|
|
/* Allocate if this is the first APP2 we've seen. */
|
|
if (s->iccnum == 0) {
|
|
s->iccdata = av_mallocz(nummarkers * sizeof(*(s->iccdata)));
|
|
s->iccdatalens = av_mallocz(nummarkers * sizeof(*(s->iccdatalens)));
|
|
if (!s->iccdata || !s->iccdatalens) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "Could not allocate ICC data arrays\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
s->iccnum = nummarkers;
|
|
}
|
|
|
|
if (s->iccdata[seqno - 1]) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Duplicate ICC sequence number\n");
|
|
goto out;
|
|
}
|
|
|
|
s->iccdatalens[seqno - 1] = len;
|
|
s->iccdata[seqno - 1] = av_malloc(len);
|
|
if (!s->iccdata[seqno - 1]) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "Could not allocate ICC data buffer\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
memcpy(s->iccdata[seqno - 1], align_get_bits(&s->gb), len);
|
|
skip_bits(&s->gb, len << 3);
|
|
len = 0;
|
|
s->iccread++;
|
|
|
|
if (s->iccread > s->iccnum)
|
|
av_log(s->avctx, AV_LOG_WARNING, "Read more ICC markers than are supposed to be coded\n");
|
|
}
|
|
|
|
out:
|
|
/* slow but needed for extreme adobe jpegs */
|
|
if (len < 0)
|
|
av_log(s->avctx, AV_LOG_ERROR,
|
|
"mjpeg: error, decode_app parser read over the end\n");
|
|
while (--len > 0)
|
|
skip_bits(&s->gb, 8);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mjpeg_decode_com(MJpegDecodeContext *s)
|
|
{
|
|
int len = get_bits(&s->gb, 16);
|
|
if (len >= 2 && 8 * len - 16 <= get_bits_left(&s->gb)) {
|
|
int i;
|
|
char *cbuf = av_malloc(len - 1);
|
|
if (!cbuf)
|
|
return AVERROR(ENOMEM);
|
|
|
|
for (i = 0; i < len - 2; i++)
|
|
cbuf[i] = get_bits(&s->gb, 8);
|
|
if (i > 0 && cbuf[i - 1] == '\n')
|
|
cbuf[i - 1] = 0;
|
|
else
|
|
cbuf[i] = 0;
|
|
|
|
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
|
|
av_log(s->avctx, AV_LOG_INFO, "comment: '%s'\n", cbuf);
|
|
|
|
/* buggy avid, it puts EOI only at every 10th frame */
|
|
if (!strncmp(cbuf, "AVID", 4)) {
|
|
parse_avid(s, cbuf, len);
|
|
} else if (!strcmp(cbuf, "CS=ITU601"))
|
|
s->cs_itu601 = 1;
|
|
else if ((!strncmp(cbuf, "Intel(R) JPEG Library, version 1", 32) && s->avctx->codec_tag) ||
|
|
(!strncmp(cbuf, "Metasoft MJPEG Codec", 20)))
|
|
s->flipped = 1;
|
|
else if (!strcmp(cbuf, "MULTISCOPE II")) {
|
|
s->avctx->sample_aspect_ratio = (AVRational) { 1, 2 };
|
|
s->multiscope = 2;
|
|
}
|
|
|
|
av_free(cbuf);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* return the 8 bit start code value and update the search
|
|
state. Return -1 if no start code found */
|
|
static int find_marker(const uint8_t **pbuf_ptr, const uint8_t *buf_end)
|
|
{
|
|
const uint8_t *buf_ptr;
|
|
unsigned int v, v2;
|
|
int val;
|
|
int skipped = 0;
|
|
|
|
buf_ptr = *pbuf_ptr;
|
|
while (buf_end - buf_ptr > 1) {
|
|
v = *buf_ptr++;
|
|
v2 = *buf_ptr;
|
|
if ((v == 0xff) && (v2 >= SOF0) && (v2 <= COM) && buf_ptr < buf_end) {
|
|
val = *buf_ptr++;
|
|
goto found;
|
|
}
|
|
skipped++;
|
|
}
|
|
buf_ptr = buf_end;
|
|
val = -1;
|
|
found:
|
|
ff_dlog(NULL, "find_marker skipped %d bytes\n", skipped);
|
|
*pbuf_ptr = buf_ptr;
|
|
return val;
|
|
}
|
|
|
|
int ff_mjpeg_find_marker(MJpegDecodeContext *s,
|
|
const uint8_t **buf_ptr, const uint8_t *buf_end,
|
|
const uint8_t **unescaped_buf_ptr,
|
|
int *unescaped_buf_size)
|
|
{
|
|
int start_code;
|
|
start_code = find_marker(buf_ptr, buf_end);
|
|
|
|
av_fast_padded_malloc(&s->buffer, &s->buffer_size, buf_end - *buf_ptr);
|
|
if (!s->buffer)
|
|
return AVERROR(ENOMEM);
|
|
|
|
/* unescape buffer of SOS, use special treatment for JPEG-LS */
|
|
if (start_code == SOS && !s->ls) {
|
|
const uint8_t *src = *buf_ptr;
|
|
const uint8_t *ptr = src;
|
|
uint8_t *dst = s->buffer;
|
|
|
|
#define copy_data_segment(skip) do { \
|
|
ptrdiff_t length = (ptr - src) - (skip); \
|
|
if (length > 0) { \
|
|
memcpy(dst, src, length); \
|
|
dst += length; \
|
|
src = ptr; \
|
|
} \
|
|
} while (0)
|
|
|
|
if (s->avctx->codec_id == AV_CODEC_ID_THP) {
|
|
ptr = buf_end;
|
|
copy_data_segment(0);
|
|
} else {
|
|
while (ptr < buf_end) {
|
|
uint8_t x = *(ptr++);
|
|
|
|
if (x == 0xff) {
|
|
ptrdiff_t skip = 0;
|
|
while (ptr < buf_end && x == 0xff) {
|
|
x = *(ptr++);
|
|
skip++;
|
|
}
|
|
|
|
/* 0xFF, 0xFF, ... */
|
|
if (skip > 1) {
|
|
copy_data_segment(skip);
|
|
|
|
/* decrement src as it is equal to ptr after the
|
|
* copy_data_segment macro and we might want to
|
|
* copy the current value of x later on */
|
|
src--;
|
|
}
|
|
|
|
if (x < RST0 || x > RST7) {
|
|
copy_data_segment(1);
|
|
if (x)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (src < ptr)
|
|
copy_data_segment(0);
|
|
}
|
|
#undef copy_data_segment
|
|
|
|
*unescaped_buf_ptr = s->buffer;
|
|
*unescaped_buf_size = dst - s->buffer;
|
|
memset(s->buffer + *unescaped_buf_size, 0,
|
|
AV_INPUT_BUFFER_PADDING_SIZE);
|
|
|
|
av_log(s->avctx, AV_LOG_DEBUG, "escaping removed %"PTRDIFF_SPECIFIER" bytes\n",
|
|
(buf_end - *buf_ptr) - (dst - s->buffer));
|
|
} else if (start_code == SOS && s->ls) {
|
|
const uint8_t *src = *buf_ptr;
|
|
uint8_t *dst = s->buffer;
|
|
int bit_count = 0;
|
|
int t = 0, b = 0;
|
|
PutBitContext pb;
|
|
|
|
/* find marker */
|
|
while (src + t < buf_end) {
|
|
uint8_t x = src[t++];
|
|
if (x == 0xff) {
|
|
while ((src + t < buf_end) && x == 0xff)
|
|
x = src[t++];
|
|
if (x & 0x80) {
|
|
t -= FFMIN(2, t);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
bit_count = t * 8;
|
|
init_put_bits(&pb, dst, t);
|
|
|
|
/* unescape bitstream */
|
|
while (b < t) {
|
|
uint8_t x = src[b++];
|
|
put_bits(&pb, 8, x);
|
|
if (x == 0xFF && b < t) {
|
|
x = src[b++];
|
|
if (x & 0x80) {
|
|
av_log(s->avctx, AV_LOG_WARNING, "Invalid escape sequence\n");
|
|
x &= 0x7f;
|
|
}
|
|
put_bits(&pb, 7, x);
|
|
bit_count--;
|
|
}
|
|
}
|
|
flush_put_bits(&pb);
|
|
|
|
*unescaped_buf_ptr = dst;
|
|
*unescaped_buf_size = (bit_count + 7) >> 3;
|
|
memset(s->buffer + *unescaped_buf_size, 0,
|
|
AV_INPUT_BUFFER_PADDING_SIZE);
|
|
} else {
|
|
*unescaped_buf_ptr = *buf_ptr;
|
|
*unescaped_buf_size = buf_end - *buf_ptr;
|
|
}
|
|
|
|
return start_code;
|
|
}
|
|
|
|
static void reset_icc_profile(MJpegDecodeContext *s)
|
|
{
|
|
int i;
|
|
|
|
if (s->iccdata)
|
|
for (i = 0; i < s->iccnum; i++)
|
|
av_freep(&s->iccdata[i]);
|
|
av_freep(&s->iccdata);
|
|
av_freep(&s->iccdatalens);
|
|
|
|
s->iccread = 0;
|
|
s->iccnum = 0;
|
|
}
|
|
|
|
int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
|
|
AVPacket *avpkt)
|
|
{
|
|
AVFrame *frame = data;
|
|
const uint8_t *buf = avpkt->data;
|
|
int buf_size = avpkt->size;
|
|
MJpegDecodeContext *s = avctx->priv_data;
|
|
const uint8_t *buf_end, *buf_ptr;
|
|
const uint8_t *unescaped_buf_ptr;
|
|
int hshift, vshift;
|
|
int unescaped_buf_size;
|
|
int start_code;
|
|
int i, index;
|
|
int ret = 0;
|
|
int is16bit;
|
|
|
|
s->buf_size = buf_size;
|
|
|
|
av_dict_free(&s->exif_metadata);
|
|
av_freep(&s->stereo3d);
|
|
s->adobe_transform = -1;
|
|
|
|
if (s->iccnum != 0)
|
|
reset_icc_profile(s);
|
|
|
|
buf_ptr = buf;
|
|
buf_end = buf + buf_size;
|
|
while (buf_ptr < buf_end) {
|
|
/* find start next marker */
|
|
start_code = ff_mjpeg_find_marker(s, &buf_ptr, buf_end,
|
|
&unescaped_buf_ptr,
|
|
&unescaped_buf_size);
|
|
/* EOF */
|
|
if (start_code < 0) {
|
|
break;
|
|
} else if (unescaped_buf_size > INT_MAX / 8) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"MJPEG packet 0x%x too big (%d/%d), corrupt data?\n",
|
|
start_code, unescaped_buf_size, buf_size);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
av_log(avctx, AV_LOG_DEBUG, "marker=%x avail_size_in_buf=%"PTRDIFF_SPECIFIER"\n",
|
|
start_code, buf_end - buf_ptr);
|
|
|
|
ret = init_get_bits8(&s->gb, unescaped_buf_ptr, unescaped_buf_size);
|
|
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "invalid buffer\n");
|
|
goto fail;
|
|
}
|
|
|
|
s->start_code = start_code;
|
|
if (s->avctx->debug & FF_DEBUG_STARTCODE)
|
|
av_log(avctx, AV_LOG_DEBUG, "startcode: %X\n", start_code);
|
|
|
|
/* process markers */
|
|
if (start_code >= RST0 && start_code <= RST7) {
|
|
av_log(avctx, AV_LOG_DEBUG,
|
|
"restart marker: %d\n", start_code & 0x0f);
|
|
/* APP fields */
|
|
} else if (start_code >= APP0 && start_code <= APP15) {
|
|
if ((ret = mjpeg_decode_app(s)) < 0)
|
|
av_log(avctx, AV_LOG_ERROR, "unable to decode APP fields: %s\n",
|
|
av_err2str(ret));
|
|
/* Comment */
|
|
} else if (start_code == COM) {
|
|
ret = mjpeg_decode_com(s);
|
|
if (ret < 0)
|
|
return ret;
|
|
} else if (start_code == DQT) {
|
|
ret = ff_mjpeg_decode_dqt(s);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = -1;
|
|
|
|
if (!CONFIG_JPEGLS_DECODER &&
|
|
(start_code == SOF48 || start_code == LSE)) {
|
|
av_log(avctx, AV_LOG_ERROR, "JPEG-LS support not enabled.\n");
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
|
|
if (avctx->skip_frame == AVDISCARD_ALL) {
|
|
switch(start_code) {
|
|
case SOF0:
|
|
case SOF1:
|
|
case SOF2:
|
|
case SOF3:
|
|
case SOF48:
|
|
case SOI:
|
|
case SOS:
|
|
case EOI:
|
|
break;
|
|
default:
|
|
goto skip;
|
|
}
|
|
}
|
|
|
|
switch (start_code) {
|
|
case SOI:
|
|
s->restart_interval = 0;
|
|
s->restart_count = 0;
|
|
s->raw_image_buffer = buf_ptr;
|
|
s->raw_image_buffer_size = buf_end - buf_ptr;
|
|
/* nothing to do on SOI */
|
|
break;
|
|
case DHT:
|
|
if ((ret = ff_mjpeg_decode_dht(s)) < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "huffman table decode error\n");
|
|
goto fail;
|
|
}
|
|
break;
|
|
case SOF0:
|
|
case SOF1:
|
|
if (start_code == SOF0)
|
|
s->avctx->profile = FF_PROFILE_MJPEG_HUFFMAN_BASELINE_DCT;
|
|
else
|
|
s->avctx->profile = FF_PROFILE_MJPEG_HUFFMAN_EXTENDED_SEQUENTIAL_DCT;
|
|
s->lossless = 0;
|
|
s->ls = 0;
|
|
s->progressive = 0;
|
|
if ((ret = ff_mjpeg_decode_sof(s)) < 0)
|
|
goto fail;
|
|
break;
|
|
case SOF2:
|
|
s->avctx->profile = FF_PROFILE_MJPEG_HUFFMAN_PROGRESSIVE_DCT;
|
|
s->lossless = 0;
|
|
s->ls = 0;
|
|
s->progressive = 1;
|
|
if ((ret = ff_mjpeg_decode_sof(s)) < 0)
|
|
goto fail;
|
|
break;
|
|
case SOF3:
|
|
s->avctx->profile = FF_PROFILE_MJPEG_HUFFMAN_LOSSLESS;
|
|
s->avctx->properties |= FF_CODEC_PROPERTY_LOSSLESS;
|
|
s->lossless = 1;
|
|
s->ls = 0;
|
|
s->progressive = 0;
|
|
if ((ret = ff_mjpeg_decode_sof(s)) < 0)
|
|
goto fail;
|
|
break;
|
|
case SOF48:
|
|
s->avctx->profile = FF_PROFILE_MJPEG_JPEG_LS;
|
|
s->avctx->properties |= FF_CODEC_PROPERTY_LOSSLESS;
|
|
s->lossless = 1;
|
|
s->ls = 1;
|
|
s->progressive = 0;
|
|
if ((ret = ff_mjpeg_decode_sof(s)) < 0)
|
|
goto fail;
|
|
break;
|
|
case LSE:
|
|
if (!CONFIG_JPEGLS_DECODER ||
|
|
(ret = ff_jpegls_decode_lse(s)) < 0)
|
|
goto fail;
|
|
break;
|
|
case EOI:
|
|
eoi_parser:
|
|
if (!avctx->hwaccel && avctx->skip_frame != AVDISCARD_ALL &&
|
|
s->progressive && s->cur_scan && s->got_picture)
|
|
mjpeg_idct_scan_progressive_ac(s);
|
|
s->cur_scan = 0;
|
|
if (!s->got_picture) {
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"Found EOI before any SOF, ignoring\n");
|
|
break;
|
|
}
|
|
if (s->interlaced) {
|
|
s->bottom_field ^= 1;
|
|
/* if not bottom field, do not output image yet */
|
|
if (s->bottom_field == !s->interlace_polarity)
|
|
break;
|
|
}
|
|
if (avctx->skip_frame == AVDISCARD_ALL) {
|
|
s->got_picture = 0;
|
|
goto the_end_no_picture;
|
|
}
|
|
if (s->avctx->hwaccel) {
|
|
ret = s->avctx->hwaccel->end_frame(s->avctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
av_freep(&s->hwaccel_picture_private);
|
|
}
|
|
if ((ret = av_frame_ref(frame, s->picture_ptr)) < 0)
|
|
return ret;
|
|
*got_frame = 1;
|
|
s->got_picture = 0;
|
|
|
|
if (!s->lossless) {
|
|
int qp = FFMAX3(s->qscale[0],
|
|
s->qscale[1],
|
|
s->qscale[2]);
|
|
int qpw = (s->width + 15) / 16;
|
|
AVBufferRef *qp_table_buf = av_buffer_alloc(qpw);
|
|
if (qp_table_buf) {
|
|
memset(qp_table_buf->data, qp, qpw);
|
|
av_frame_set_qp_table(data, qp_table_buf, 0, FF_QSCALE_TYPE_MPEG1);
|
|
}
|
|
|
|
if(avctx->debug & FF_DEBUG_QP)
|
|
av_log(avctx, AV_LOG_DEBUG, "QP: %d\n", qp);
|
|
}
|
|
|
|
goto the_end;
|
|
case SOS:
|
|
s->raw_scan_buffer = buf_ptr;
|
|
s->raw_scan_buffer_size = buf_end - buf_ptr;
|
|
|
|
s->cur_scan++;
|
|
if (avctx->skip_frame == AVDISCARD_ALL) {
|
|
skip_bits(&s->gb, get_bits_left(&s->gb));
|
|
break;
|
|
}
|
|
|
|
if ((ret = ff_mjpeg_decode_sos(s, NULL, 0, NULL)) < 0 &&
|
|
(avctx->err_recognition & AV_EF_EXPLODE))
|
|
goto fail;
|
|
break;
|
|
case DRI:
|
|
if ((ret = mjpeg_decode_dri(s)) < 0)
|
|
return ret;
|
|
break;
|
|
case SOF5:
|
|
case SOF6:
|
|
case SOF7:
|
|
case SOF9:
|
|
case SOF10:
|
|
case SOF11:
|
|
case SOF13:
|
|
case SOF14:
|
|
case SOF15:
|
|
case JPG:
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"mjpeg: unsupported coding type (%x)\n", start_code);
|
|
break;
|
|
}
|
|
|
|
skip:
|
|
/* eof process start code */
|
|
buf_ptr += (get_bits_count(&s->gb) + 7) / 8;
|
|
av_log(avctx, AV_LOG_DEBUG,
|
|
"marker parser used %d bytes (%d bits)\n",
|
|
(get_bits_count(&s->gb) + 7) / 8, get_bits_count(&s->gb));
|
|
}
|
|
if (s->got_picture && s->cur_scan) {
|
|
av_log(avctx, AV_LOG_WARNING, "EOI missing, emulating\n");
|
|
goto eoi_parser;
|
|
}
|
|
av_log(avctx, AV_LOG_FATAL, "No JPEG data found in image\n");
|
|
return AVERROR_INVALIDDATA;
|
|
fail:
|
|
s->got_picture = 0;
|
|
return ret;
|
|
the_end:
|
|
|
|
is16bit = av_pix_fmt_desc_get(s->avctx->pix_fmt)->comp[0].step > 1;
|
|
|
|
if (AV_RB32(s->upscale_h)) {
|
|
int p;
|
|
av_assert0(avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV444P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVJ440P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV440P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVA444P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV420P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV420P16||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVA420P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVA420P16||
|
|
avctx->pix_fmt == AV_PIX_FMT_GBRP ||
|
|
avctx->pix_fmt == AV_PIX_FMT_GBRAP
|
|
);
|
|
ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, &hshift, &vshift);
|
|
if (ret)
|
|
return ret;
|
|
|
|
av_assert0(s->nb_components == av_pix_fmt_count_planes(s->picture_ptr->format));
|
|
for (p = 0; p<s->nb_components; p++) {
|
|
uint8_t *line = s->picture_ptr->data[p];
|
|
int w = s->width;
|
|
int h = s->height;
|
|
if (!s->upscale_h[p])
|
|
continue;
|
|
if (p==1 || p==2) {
|
|
w = AV_CEIL_RSHIFT(w, hshift);
|
|
h = AV_CEIL_RSHIFT(h, vshift);
|
|
}
|
|
if (s->upscale_v[p] == 1)
|
|
h = (h+1)>>1;
|
|
av_assert0(w > 0);
|
|
for (i = 0; i < h; i++) {
|
|
if (s->upscale_h[p] == 1) {
|
|
if (is16bit) ((uint16_t*)line)[w - 1] = ((uint16_t*)line)[(w - 1) / 2];
|
|
else line[w - 1] = line[(w - 1) / 2];
|
|
for (index = w - 2; index > 0; index--) {
|
|
if (is16bit)
|
|
((uint16_t*)line)[index] = (((uint16_t*)line)[index / 2] + ((uint16_t*)line)[(index + 1) / 2]) >> 1;
|
|
else
|
|
line[index] = (line[index / 2] + line[(index + 1) / 2]) >> 1;
|
|
}
|
|
} else if (s->upscale_h[p] == 2) {
|
|
if (is16bit) {
|
|
((uint16_t*)line)[w - 1] = ((uint16_t*)line)[(w - 1) / 3];
|
|
if (w > 1)
|
|
((uint16_t*)line)[w - 2] = ((uint16_t*)line)[w - 1];
|
|
} else {
|
|
line[w - 1] = line[(w - 1) / 3];
|
|
if (w > 1)
|
|
line[w - 2] = line[w - 1];
|
|
}
|
|
for (index = w - 3; index > 0; index--) {
|
|
line[index] = (line[index / 3] + line[(index + 1) / 3] + line[(index + 2) / 3] + 1) / 3;
|
|
}
|
|
}
|
|
line += s->linesize[p];
|
|
}
|
|
}
|
|
}
|
|
if (AV_RB32(s->upscale_v)) {
|
|
int p;
|
|
av_assert0(avctx->pix_fmt == AV_PIX_FMT_YUVJ444P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV444P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVJ422P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV422P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVJ420P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV420P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUV440P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVJ440P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVA444P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVA420P ||
|
|
avctx->pix_fmt == AV_PIX_FMT_YUVA420P16||
|
|
avctx->pix_fmt == AV_PIX_FMT_GBRP ||
|
|
avctx->pix_fmt == AV_PIX_FMT_GBRAP
|
|
);
|
|
ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, &hshift, &vshift);
|
|
if (ret)
|
|
return ret;
|
|
|
|
av_assert0(s->nb_components == av_pix_fmt_count_planes(s->picture_ptr->format));
|
|
for (p = 0; p < s->nb_components; p++) {
|
|
uint8_t *dst;
|
|
int w = s->width;
|
|
int h = s->height;
|
|
if (!s->upscale_v[p])
|
|
continue;
|
|
if (p==1 || p==2) {
|
|
w = AV_CEIL_RSHIFT(w, hshift);
|
|
h = AV_CEIL_RSHIFT(h, vshift);
|
|
}
|
|
dst = &((uint8_t *)s->picture_ptr->data[p])[(h - 1) * s->linesize[p]];
|
|
for (i = h - 1; i; i--) {
|
|
uint8_t *src1 = &((uint8_t *)s->picture_ptr->data[p])[i * s->upscale_v[p] / (s->upscale_v[p] + 1) * s->linesize[p]];
|
|
uint8_t *src2 = &((uint8_t *)s->picture_ptr->data[p])[(i + 1) * s->upscale_v[p] / (s->upscale_v[p] + 1) * s->linesize[p]];
|
|
if (s->upscale_v[p] != 2 && (src1 == src2 || i == h - 1)) {
|
|
memcpy(dst, src1, w);
|
|
} else {
|
|
for (index = 0; index < w; index++)
|
|
dst[index] = (src1[index] + src2[index]) >> 1;
|
|
}
|
|
dst -= s->linesize[p];
|
|
}
|
|
}
|
|
}
|
|
if (s->flipped && !s->rgb) {
|
|
int j;
|
|
ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, &hshift, &vshift);
|
|
if (ret)
|
|
return ret;
|
|
|
|
av_assert0(s->nb_components == av_pix_fmt_count_planes(s->picture_ptr->format));
|
|
for (index=0; index<s->nb_components; index++) {
|
|
uint8_t *dst = s->picture_ptr->data[index];
|
|
int w = s->picture_ptr->width;
|
|
int h = s->picture_ptr->height;
|
|
if(index && index<3){
|
|
w = AV_CEIL_RSHIFT(w, hshift);
|
|
h = AV_CEIL_RSHIFT(h, vshift);
|
|
}
|
|
if(dst){
|
|
uint8_t *dst2 = dst + s->picture_ptr->linesize[index]*(h-1);
|
|
for (i=0; i<h/2; i++) {
|
|
for (j=0; j<w; j++)
|
|
FFSWAP(int, dst[j], dst2[j]);
|
|
dst += s->picture_ptr->linesize[index];
|
|
dst2 -= s->picture_ptr->linesize[index];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (s->adobe_transform == 0 && s->avctx->pix_fmt == AV_PIX_FMT_GBRAP) {
|
|
int w = s->picture_ptr->width;
|
|
int h = s->picture_ptr->height;
|
|
av_assert0(s->nb_components == 4);
|
|
for (i=0; i<h; i++) {
|
|
int j;
|
|
uint8_t *dst[4];
|
|
for (index=0; index<4; index++) {
|
|
dst[index] = s->picture_ptr->data[index]
|
|
+ s->picture_ptr->linesize[index]*i;
|
|
}
|
|
for (j=0; j<w; j++) {
|
|
int k = dst[3][j];
|
|
int r = dst[0][j] * k;
|
|
int g = dst[1][j] * k;
|
|
int b = dst[2][j] * k;
|
|
dst[0][j] = g*257 >> 16;
|
|
dst[1][j] = b*257 >> 16;
|
|
dst[2][j] = r*257 >> 16;
|
|
dst[3][j] = 255;
|
|
}
|
|
}
|
|
}
|
|
if (s->adobe_transform == 2 && s->avctx->pix_fmt == AV_PIX_FMT_YUVA444P) {
|
|
int w = s->picture_ptr->width;
|
|
int h = s->picture_ptr->height;
|
|
av_assert0(s->nb_components == 4);
|
|
for (i=0; i<h; i++) {
|
|
int j;
|
|
uint8_t *dst[4];
|
|
for (index=0; index<4; index++) {
|
|
dst[index] = s->picture_ptr->data[index]
|
|
+ s->picture_ptr->linesize[index]*i;
|
|
}
|
|
for (j=0; j<w; j++) {
|
|
int k = dst[3][j];
|
|
int r = (255 - dst[0][j]) * k;
|
|
int g = (128 - dst[1][j]) * k;
|
|
int b = (128 - dst[2][j]) * k;
|
|
dst[0][j] = r*257 >> 16;
|
|
dst[1][j] = (g*257 >> 16) + 128;
|
|
dst[2][j] = (b*257 >> 16) + 128;
|
|
dst[3][j] = 255;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (s->stereo3d) {
|
|
AVStereo3D *stereo = av_stereo3d_create_side_data(data);
|
|
if (stereo) {
|
|
stereo->type = s->stereo3d->type;
|
|
stereo->flags = s->stereo3d->flags;
|
|
}
|
|
av_freep(&s->stereo3d);
|
|
}
|
|
|
|
if (s->iccnum != 0 && s->iccnum == s->iccread) {
|
|
AVFrameSideData *sd;
|
|
size_t offset = 0;
|
|
int total_size = 0;
|
|
int i;
|
|
|
|
/* Sum size of all parts. */
|
|
for (i = 0; i < s->iccnum; i++)
|
|
total_size += s->iccdatalens[i];
|
|
|
|
sd = av_frame_new_side_data(data, AV_FRAME_DATA_ICC_PROFILE, total_size);
|
|
if (!sd) {
|
|
av_log(s->avctx, AV_LOG_ERROR, "Could not allocate frame side data\n");
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
/* Reassemble the parts, which are now in-order. */
|
|
for (i = 0; i < s->iccnum; i++) {
|
|
memcpy(sd->data + offset, s->iccdata[i], s->iccdatalens[i]);
|
|
offset += s->iccdatalens[i];
|
|
}
|
|
}
|
|
|
|
av_dict_copy(&((AVFrame *) data)->metadata, s->exif_metadata, 0);
|
|
av_dict_free(&s->exif_metadata);
|
|
|
|
the_end_no_picture:
|
|
av_log(avctx, AV_LOG_DEBUG, "decode frame unused %"PTRDIFF_SPECIFIER" bytes\n",
|
|
buf_end - buf_ptr);
|
|
// return buf_end - buf_ptr;
|
|
return buf_ptr - buf;
|
|
}
|
|
|
|
av_cold int ff_mjpeg_decode_end(AVCodecContext *avctx)
|
|
{
|
|
MJpegDecodeContext *s = avctx->priv_data;
|
|
int i, j;
|
|
|
|
if (s->interlaced && s->bottom_field == !s->interlace_polarity && s->got_picture && !avctx->frame_number) {
|
|
av_log(avctx, AV_LOG_INFO, "Single field\n");
|
|
}
|
|
|
|
if (s->picture) {
|
|
av_frame_free(&s->picture);
|
|
s->picture_ptr = NULL;
|
|
} else if (s->picture_ptr)
|
|
av_frame_unref(s->picture_ptr);
|
|
|
|
av_freep(&s->buffer);
|
|
av_freep(&s->stereo3d);
|
|
av_freep(&s->ljpeg_buffer);
|
|
s->ljpeg_buffer_size = 0;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
for (j = 0; j < 4; j++)
|
|
ff_free_vlc(&s->vlcs[i][j]);
|
|
}
|
|
for (i = 0; i < MAX_COMPONENTS; i++) {
|
|
av_freep(&s->blocks[i]);
|
|
av_freep(&s->last_nnz[i]);
|
|
}
|
|
av_dict_free(&s->exif_metadata);
|
|
|
|
reset_icc_profile(s);
|
|
|
|
av_freep(&s->hwaccel_picture_private);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void decode_flush(AVCodecContext *avctx)
|
|
{
|
|
MJpegDecodeContext *s = avctx->priv_data;
|
|
s->got_picture = 0;
|
|
}
|
|
|
|
#if CONFIG_MJPEG_DECODER
|
|
#define OFFSET(x) offsetof(MJpegDecodeContext, x)
|
|
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
|
|
static const AVOption options[] = {
|
|
{ "extern_huff", "Use external huffman table.",
|
|
OFFSET(extern_huff), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
|
|
{ NULL },
|
|
};
|
|
|
|
static const AVClass mjpegdec_class = {
|
|
.class_name = "MJPEG decoder",
|
|
.item_name = av_default_item_name,
|
|
.option = options,
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
};
|
|
|
|
AVCodec ff_mjpeg_decoder = {
|
|
.name = "mjpeg",
|
|
.long_name = NULL_IF_CONFIG_SMALL("MJPEG (Motion JPEG)"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_MJPEG,
|
|
.priv_data_size = sizeof(MJpegDecodeContext),
|
|
.init = ff_mjpeg_decode_init,
|
|
.close = ff_mjpeg_decode_end,
|
|
.decode = ff_mjpeg_decode_frame,
|
|
.flush = decode_flush,
|
|
.capabilities = AV_CODEC_CAP_DR1,
|
|
.max_lowres = 3,
|
|
.priv_class = &mjpegdec_class,
|
|
.profiles = NULL_IF_CONFIG_SMALL(ff_mjpeg_profiles),
|
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
|
|
FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
|
|
.hw_configs = (const AVCodecHWConfigInternal*[]) {
|
|
#if CONFIG_MJPEG_NVDEC_HWACCEL
|
|
HWACCEL_NVDEC(mjpeg),
|
|
#endif
|
|
#if CONFIG_MJPEG_VAAPI_HWACCEL
|
|
HWACCEL_VAAPI(mjpeg),
|
|
#endif
|
|
NULL
|
|
},
|
|
};
|
|
#endif
|
|
#if CONFIG_THP_DECODER
|
|
AVCodec ff_thp_decoder = {
|
|
.name = "thp",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Nintendo Gamecube THP video"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_THP,
|
|
.priv_data_size = sizeof(MJpegDecodeContext),
|
|
.init = ff_mjpeg_decode_init,
|
|
.close = ff_mjpeg_decode_end,
|
|
.decode = ff_mjpeg_decode_frame,
|
|
.flush = decode_flush,
|
|
.capabilities = AV_CODEC_CAP_DR1,
|
|
.max_lowres = 3,
|
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
|
|
};
|
|
#endif
|