mirror of
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1967 lines
64 KiB
C
Executable File
1967 lines
64 KiB
C
Executable File
/*
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* generic decoding-related code
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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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#include <stdint.h>
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#include <string.h>
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#include "config.h"
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#if CONFIG_ICONV
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# include <iconv.h>
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#endif
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#include "libavutil/avassert.h"
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#include "libavutil/avstring.h"
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#include "libavutil/bprint.h"
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#include "libavutil/common.h"
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#include "libavutil/frame.h"
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#include "libavutil/hwcontext.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/internal.h"
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#include "libavutil/intmath.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "bytestream.h"
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#include "decode.h"
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#include "hwconfig.h"
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#include "internal.h"
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#include "thread.h"
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typedef struct FramePool {
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/**
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* Pools for each data plane. For audio all the planes have the same size,
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* so only pools[0] is used.
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*/
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AVBufferPool *pools[4];
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/*
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* Pool parameters
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*/
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int format;
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int width, height;
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int stride_align[AV_NUM_DATA_POINTERS];
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int linesize[4];
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int planes;
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int channels;
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int samples;
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} FramePool;
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static int apply_param_change(AVCodecContext *avctx, const AVPacket *avpkt)
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{
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int size, ret;
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const uint8_t *data;
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uint32_t flags;
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int64_t val;
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data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size);
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if (!data)
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return 0;
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if (!(avctx->codec->capabilities & AV_CODEC_CAP_PARAM_CHANGE)) {
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av_log(avctx, AV_LOG_ERROR, "This decoder does not support parameter "
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"changes, but PARAM_CHANGE side data was sent to it.\n");
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ret = AVERROR(EINVAL);
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goto fail2;
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}
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if (size < 4)
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goto fail;
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flags = bytestream_get_le32(&data);
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size -= 4;
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if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) {
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if (size < 4)
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goto fail;
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val = bytestream_get_le32(&data);
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if (val <= 0 || val > INT_MAX) {
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av_log(avctx, AV_LOG_ERROR, "Invalid channel count");
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ret = AVERROR_INVALIDDATA;
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goto fail2;
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}
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avctx->channels = val;
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size -= 4;
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}
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if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) {
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if (size < 8)
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goto fail;
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avctx->channel_layout = bytestream_get_le64(&data);
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size -= 8;
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}
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if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) {
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if (size < 4)
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goto fail;
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val = bytestream_get_le32(&data);
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if (val <= 0 || val > INT_MAX) {
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av_log(avctx, AV_LOG_ERROR, "Invalid sample rate");
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ret = AVERROR_INVALIDDATA;
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goto fail2;
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}
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avctx->sample_rate = val;
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size -= 4;
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}
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if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) {
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if (size < 8)
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goto fail;
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avctx->width = bytestream_get_le32(&data);
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avctx->height = bytestream_get_le32(&data);
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size -= 8;
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ret = ff_set_dimensions(avctx, avctx->width, avctx->height);
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if (ret < 0)
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goto fail2;
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}
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return 0;
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fail:
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av_log(avctx, AV_LOG_ERROR, "PARAM_CHANGE side data too small.\n");
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ret = AVERROR_INVALIDDATA;
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fail2:
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if (ret < 0) {
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av_log(avctx, AV_LOG_ERROR, "Error applying parameter changes.\n");
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if (avctx->err_recognition & AV_EF_EXPLODE)
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return ret;
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}
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return 0;
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}
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static int extract_packet_props(AVCodecInternal *avci, const AVPacket *pkt)
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{
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int ret = 0;
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av_packet_unref(avci->last_pkt_props);
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if (pkt) {
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ret = av_packet_copy_props(avci->last_pkt_props, pkt);
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if (!ret)
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avci->last_pkt_props->size = pkt->size; // HACK: Needed for ff_decode_frame_props().
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}
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return ret;
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}
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static int unrefcount_frame(AVCodecInternal *avci, AVFrame *frame)
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{
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int ret;
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/* move the original frame to our backup */
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av_frame_unref(avci->to_free);
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av_frame_move_ref(avci->to_free, frame);
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/* now copy everything except the AVBufferRefs back
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* note that we make a COPY of the side data, so calling av_frame_free() on
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* the caller's frame will work properly */
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ret = av_frame_copy_props(frame, avci->to_free);
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if (ret < 0)
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return ret;
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memcpy(frame->data, avci->to_free->data, sizeof(frame->data));
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memcpy(frame->linesize, avci->to_free->linesize, sizeof(frame->linesize));
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if (avci->to_free->extended_data != avci->to_free->data) {
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int planes = avci->to_free->channels;
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int size = planes * sizeof(*frame->extended_data);
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if (!size) {
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av_frame_unref(frame);
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return AVERROR_BUG;
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}
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frame->extended_data = av_malloc(size);
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if (!frame->extended_data) {
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av_frame_unref(frame);
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return AVERROR(ENOMEM);
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}
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memcpy(frame->extended_data, avci->to_free->extended_data,
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size);
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} else
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frame->extended_data = frame->data;
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frame->format = avci->to_free->format;
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frame->width = avci->to_free->width;
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frame->height = avci->to_free->height;
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frame->channel_layout = avci->to_free->channel_layout;
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frame->nb_samples = avci->to_free->nb_samples;
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frame->channels = avci->to_free->channels;
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return 0;
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}
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int ff_decode_bsfs_init(AVCodecContext *avctx)
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{
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AVCodecInternal *avci = avctx->internal;
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int ret;
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if (avci->bsf)
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return 0;
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ret = av_bsf_list_parse_str(avctx->codec->bsfs, &avci->bsf);
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if (ret < 0) {
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av_log(avctx, AV_LOG_ERROR, "Error parsing decoder bitstream filters '%s': %s\n", avctx->codec->bsfs, av_err2str(ret));
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if (ret != AVERROR(ENOMEM))
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ret = AVERROR_BUG;
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goto fail;
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}
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/* We do not currently have an API for passing the input timebase into decoders,
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* but no filters used here should actually need it.
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* So we make up some plausible-looking number (the MPEG 90kHz timebase) */
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avci->bsf->time_base_in = (AVRational){ 1, 90000 };
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ret = avcodec_parameters_from_context(avci->bsf->par_in, avctx);
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if (ret < 0)
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goto fail;
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ret = av_bsf_init(avci->bsf);
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if (ret < 0)
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goto fail;
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return 0;
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fail:
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av_bsf_free(&avci->bsf);
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return ret;
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}
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int ff_decode_get_packet(AVCodecContext *avctx, AVPacket *pkt)
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{
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AVCodecInternal *avci = avctx->internal;
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int ret;
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if (avci->draining)
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return AVERROR_EOF;
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ret = av_bsf_receive_packet(avci->bsf, pkt);
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if (ret == AVERROR_EOF)
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avci->draining = 1;
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if (ret < 0)
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return ret;
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ret = extract_packet_props(avctx->internal, pkt);
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if (ret < 0)
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goto finish;
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ret = apply_param_change(avctx, pkt);
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if (ret < 0)
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goto finish;
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if (avctx->codec->receive_frame)
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avci->compat_decode_consumed += pkt->size;
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return 0;
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finish:
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av_packet_unref(pkt);
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return ret;
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}
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/**
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* Attempt to guess proper monotonic timestamps for decoded video frames
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* which might have incorrect times. Input timestamps may wrap around, in
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* which case the output will as well.
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*
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* @param pts the pts field of the decoded AVPacket, as passed through
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* AVFrame.pts
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* @param dts the dts field of the decoded AVPacket
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* @return one of the input values, may be AV_NOPTS_VALUE
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*/
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static int64_t guess_correct_pts(AVCodecContext *ctx,
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int64_t reordered_pts, int64_t dts)
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{
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int64_t pts = AV_NOPTS_VALUE;
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if (dts != AV_NOPTS_VALUE) {
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ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts;
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ctx->pts_correction_last_dts = dts;
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} else if (reordered_pts != AV_NOPTS_VALUE)
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ctx->pts_correction_last_dts = reordered_pts;
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if (reordered_pts != AV_NOPTS_VALUE) {
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ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts;
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ctx->pts_correction_last_pts = reordered_pts;
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} else if(dts != AV_NOPTS_VALUE)
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ctx->pts_correction_last_pts = dts;
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if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE)
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&& reordered_pts != AV_NOPTS_VALUE)
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pts = reordered_pts;
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else
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pts = dts;
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return pts;
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}
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/*
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* The core of the receive_frame_wrapper for the decoders implementing
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* the simple API. Certain decoders might consume partial packets without
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* returning any output, so this function needs to be called in a loop until it
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* returns EAGAIN.
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**/
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static inline int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame)
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{
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AVCodecInternal *avci = avctx->internal;
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DecodeSimpleContext *ds = &avci->ds;
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AVPacket *pkt = ds->in_pkt;
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// copy to ensure we do not change pkt
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int got_frame, actual_got_frame;
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int ret;
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if (!pkt->data && !avci->draining) {
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av_packet_unref(pkt);
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ret = ff_decode_get_packet(avctx, pkt);
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if (ret < 0 && ret != AVERROR_EOF)
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return ret;
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}
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// Some codecs (at least wma lossless) will crash when feeding drain packets
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// after EOF was signaled.
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if (avci->draining_done)
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return AVERROR_EOF;
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if (!pkt->data &&
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!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY ||
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avctx->active_thread_type & FF_THREAD_FRAME))
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return AVERROR_EOF;
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got_frame = 0;
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if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) {
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ret = ff_thread_decode_frame(avctx, frame, &got_frame, pkt);
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} else {
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ret = avctx->codec->decode(avctx, frame, &got_frame, pkt);
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if (!(avctx->codec->caps_internal & FF_CODEC_CAP_SETS_PKT_DTS))
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frame->pkt_dts = pkt->dts;
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if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
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if(!avctx->has_b_frames)
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frame->pkt_pos = pkt->pos;
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//FIXME these should be under if(!avctx->has_b_frames)
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/* get_buffer is supposed to set frame parameters */
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if (!(avctx->codec->capabilities & AV_CODEC_CAP_DR1)) {
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if (!frame->sample_aspect_ratio.num) frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
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if (!frame->width) frame->width = avctx->width;
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if (!frame->height) frame->height = avctx->height;
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if (frame->format == AV_PIX_FMT_NONE) frame->format = avctx->pix_fmt;
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}
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}
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}
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emms_c();
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actual_got_frame = got_frame;
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if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
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if (frame->flags & AV_FRAME_FLAG_DISCARD)
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got_frame = 0;
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if (got_frame)
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frame->best_effort_timestamp = guess_correct_pts(avctx,
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frame->pts,
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frame->pkt_dts);
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} else if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
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uint8_t *side;
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int side_size;
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uint32_t discard_padding = 0;
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uint8_t skip_reason = 0;
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uint8_t discard_reason = 0;
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if (ret >= 0 && got_frame) {
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frame->best_effort_timestamp = guess_correct_pts(avctx,
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frame->pts,
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frame->pkt_dts);
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if (frame->format == AV_SAMPLE_FMT_NONE)
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frame->format = avctx->sample_fmt;
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if (!frame->channel_layout)
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frame->channel_layout = avctx->channel_layout;
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if (!frame->channels)
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frame->channels = avctx->channels;
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if (!frame->sample_rate)
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frame->sample_rate = avctx->sample_rate;
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}
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side= av_packet_get_side_data(avci->last_pkt_props, AV_PKT_DATA_SKIP_SAMPLES, &side_size);
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if(side && side_size>=10) {
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avci->skip_samples = AV_RL32(side) * avci->skip_samples_multiplier;
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discard_padding = AV_RL32(side + 4);
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av_log(avctx, AV_LOG_DEBUG, "skip %d / discard %d samples due to side data\n",
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avci->skip_samples, (int)discard_padding);
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skip_reason = AV_RL8(side + 8);
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discard_reason = AV_RL8(side + 9);
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}
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if ((frame->flags & AV_FRAME_FLAG_DISCARD) && got_frame &&
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!(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
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avci->skip_samples = FFMAX(0, avci->skip_samples - frame->nb_samples);
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got_frame = 0;
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}
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if (avci->skip_samples > 0 && got_frame &&
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!(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
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if(frame->nb_samples <= avci->skip_samples){
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got_frame = 0;
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avci->skip_samples -= frame->nb_samples;
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av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n",
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avci->skip_samples);
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} else {
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av_samples_copy(frame->extended_data, frame->extended_data, 0, avci->skip_samples,
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frame->nb_samples - avci->skip_samples, avctx->channels, frame->format);
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if(avctx->pkt_timebase.num && avctx->sample_rate) {
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int64_t diff_ts = av_rescale_q(avci->skip_samples,
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(AVRational){1, avctx->sample_rate},
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avctx->pkt_timebase);
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if(frame->pts!=AV_NOPTS_VALUE)
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frame->pts += diff_ts;
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#if FF_API_PKT_PTS
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FF_DISABLE_DEPRECATION_WARNINGS
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if(frame->pkt_pts!=AV_NOPTS_VALUE)
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frame->pkt_pts += diff_ts;
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FF_ENABLE_DEPRECATION_WARNINGS
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#endif
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if(frame->pkt_dts!=AV_NOPTS_VALUE)
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frame->pkt_dts += diff_ts;
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if (frame->pkt_duration >= diff_ts)
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frame->pkt_duration -= diff_ts;
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} else {
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av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n");
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}
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av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n",
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avci->skip_samples, frame->nb_samples);
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frame->nb_samples -= avci->skip_samples;
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avci->skip_samples = 0;
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}
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}
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if (discard_padding > 0 && discard_padding <= frame->nb_samples && got_frame &&
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!(avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL)) {
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if (discard_padding == frame->nb_samples) {
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got_frame = 0;
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} else {
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if(avctx->pkt_timebase.num && avctx->sample_rate) {
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int64_t diff_ts = av_rescale_q(frame->nb_samples - discard_padding,
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(AVRational){1, avctx->sample_rate},
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avctx->pkt_timebase);
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frame->pkt_duration = diff_ts;
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} else {
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av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for discarded samples.\n");
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}
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av_log(avctx, AV_LOG_DEBUG, "discard %d/%d samples\n",
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(int)discard_padding, frame->nb_samples);
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frame->nb_samples -= discard_padding;
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}
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}
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if ((avctx->flags2 & AV_CODEC_FLAG2_SKIP_MANUAL) && got_frame) {
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AVFrameSideData *fside = av_frame_new_side_data(frame, AV_FRAME_DATA_SKIP_SAMPLES, 10);
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if (fside) {
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AV_WL32(fside->data, avci->skip_samples);
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AV_WL32(fside->data + 4, discard_padding);
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AV_WL8(fside->data + 8, skip_reason);
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AV_WL8(fside->data + 9, discard_reason);
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avci->skip_samples = 0;
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}
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}
|
|
}
|
|
|
|
if (avctx->codec->type == AVMEDIA_TYPE_AUDIO &&
|
|
!avci->showed_multi_packet_warning &&
|
|
ret >= 0 && ret != pkt->size && !(avctx->codec->capabilities & AV_CODEC_CAP_SUBFRAMES)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Multiple frames in a packet.\n");
|
|
avci->showed_multi_packet_warning = 1;
|
|
}
|
|
|
|
if (!got_frame)
|
|
av_frame_unref(frame);
|
|
|
|
if (ret >= 0 && avctx->codec->type == AVMEDIA_TYPE_VIDEO && !(avctx->flags & AV_CODEC_FLAG_TRUNCATED))
|
|
ret = pkt->size;
|
|
|
|
#if FF_API_AVCTX_TIMEBASE
|
|
if (avctx->framerate.num > 0 && avctx->framerate.den > 0)
|
|
avctx->time_base = av_inv_q(av_mul_q(avctx->framerate, (AVRational){avctx->ticks_per_frame, 1}));
|
|
#endif
|
|
|
|
/* do not stop draining when actual_got_frame != 0 or ret < 0 */
|
|
/* got_frame == 0 but actual_got_frame != 0 when frame is discarded */
|
|
if (avci->draining && !actual_got_frame) {
|
|
if (ret < 0) {
|
|
/* prevent infinite loop if a decoder wrongly always return error on draining */
|
|
/* reasonable nb_errors_max = maximum b frames + thread count */
|
|
int nb_errors_max = 20 + (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME ?
|
|
avctx->thread_count : 1);
|
|
|
|
if (avci->nb_draining_errors++ >= nb_errors_max) {
|
|
av_log(avctx, AV_LOG_ERROR, "Too many errors when draining, this is a bug. "
|
|
"Stop draining and force EOF.\n");
|
|
avci->draining_done = 1;
|
|
ret = AVERROR_BUG;
|
|
}
|
|
} else {
|
|
avci->draining_done = 1;
|
|
}
|
|
}
|
|
|
|
avci->compat_decode_consumed += ret;
|
|
|
|
if (ret >= pkt->size || ret < 0) {
|
|
av_packet_unref(pkt);
|
|
} else {
|
|
int consumed = ret;
|
|
|
|
pkt->data += consumed;
|
|
pkt->size -= consumed;
|
|
avci->last_pkt_props->size -= consumed; // See extract_packet_props() comment.
|
|
pkt->pts = AV_NOPTS_VALUE;
|
|
pkt->dts = AV_NOPTS_VALUE;
|
|
avci->last_pkt_props->pts = AV_NOPTS_VALUE;
|
|
avci->last_pkt_props->dts = AV_NOPTS_VALUE;
|
|
}
|
|
|
|
if (got_frame)
|
|
av_assert0(frame->buf[0]);
|
|
|
|
return ret < 0 ? ret : 0;
|
|
}
|
|
|
|
static int decode_simple_receive_frame(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
int ret;
|
|
|
|
while (!frame->buf[0]) {
|
|
ret = decode_simple_internal(avctx, frame);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int decode_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
AVCodecInternal *avci = avctx->internal;
|
|
int ret;
|
|
|
|
av_assert0(!frame->buf[0]);
|
|
|
|
if (avctx->codec->receive_frame)
|
|
ret = avctx->codec->receive_frame(avctx, frame);
|
|
else
|
|
ret = decode_simple_receive_frame(avctx, frame);
|
|
|
|
if (ret == AVERROR_EOF)
|
|
avci->draining_done = 1;
|
|
|
|
if (!ret) {
|
|
/* the only case where decode data is not set should be decoders
|
|
* that do not call ff_get_buffer() */
|
|
av_assert0((frame->private_ref && frame->private_ref->size == sizeof(FrameDecodeData)) ||
|
|
!(avctx->codec->capabilities & AV_CODEC_CAP_DR1));
|
|
|
|
if (frame->private_ref) {
|
|
FrameDecodeData *fdd = (FrameDecodeData*)frame->private_ref->data;
|
|
|
|
if (fdd->post_process) {
|
|
ret = fdd->post_process(avctx, frame);
|
|
if (ret < 0) {
|
|
av_frame_unref(frame);
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* free the per-frame decode data */
|
|
av_buffer_unref(&frame->private_ref);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int attribute_align_arg avcodec_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
|
|
{
|
|
AVCodecInternal *avci = avctx->internal;
|
|
int ret;
|
|
|
|
if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
|
|
return AVERROR(EINVAL);
|
|
|
|
if (avctx->internal->draining)
|
|
return AVERROR_EOF;
|
|
|
|
if (avpkt && !avpkt->size && avpkt->data)
|
|
return AVERROR(EINVAL);
|
|
|
|
av_packet_unref(avci->buffer_pkt);
|
|
if (avpkt && (avpkt->data || avpkt->side_data_elems)) {
|
|
ret = av_packet_ref(avci->buffer_pkt, avpkt);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = av_bsf_send_packet(avci->bsf, avci->buffer_pkt);
|
|
if (ret < 0) {
|
|
av_packet_unref(avci->buffer_pkt);
|
|
return ret;
|
|
}
|
|
|
|
if (!avci->buffer_frame->buf[0]) {
|
|
ret = decode_receive_frame_internal(avctx, avci->buffer_frame);
|
|
if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int apply_cropping(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
/* make sure we are noisy about decoders returning invalid cropping data */
|
|
if (frame->crop_left >= INT_MAX - frame->crop_right ||
|
|
frame->crop_top >= INT_MAX - frame->crop_bottom ||
|
|
(frame->crop_left + frame->crop_right) >= frame->width ||
|
|
(frame->crop_top + frame->crop_bottom) >= frame->height) {
|
|
av_log(avctx, AV_LOG_WARNING,
|
|
"Invalid cropping information set by a decoder: "
|
|
"%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER"/%"SIZE_SPECIFIER" "
|
|
"(frame size %dx%d). This is a bug, please report it\n",
|
|
frame->crop_left, frame->crop_right, frame->crop_top, frame->crop_bottom,
|
|
frame->width, frame->height);
|
|
frame->crop_left = 0;
|
|
frame->crop_right = 0;
|
|
frame->crop_top = 0;
|
|
frame->crop_bottom = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (!avctx->apply_cropping)
|
|
return 0;
|
|
|
|
return av_frame_apply_cropping(frame, avctx->flags & AV_CODEC_FLAG_UNALIGNED ?
|
|
AV_FRAME_CROP_UNALIGNED : 0);
|
|
}
|
|
|
|
int attribute_align_arg avcodec_receive_frame(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
AVCodecInternal *avci = avctx->internal;
|
|
int ret, changed;
|
|
|
|
av_frame_unref(frame);
|
|
|
|
if (!avcodec_is_open(avctx) || !av_codec_is_decoder(avctx->codec))
|
|
return AVERROR(EINVAL);
|
|
|
|
if (avci->buffer_frame->buf[0]) {
|
|
av_frame_move_ref(frame, avci->buffer_frame);
|
|
} else {
|
|
ret = decode_receive_frame_internal(avctx, frame);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
ret = apply_cropping(avctx, frame);
|
|
if (ret < 0) {
|
|
av_frame_unref(frame);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
avctx->frame_number++;
|
|
|
|
if (avctx->flags & AV_CODEC_FLAG_DROPCHANGED) {
|
|
|
|
if (avctx->frame_number == 1) {
|
|
avci->initial_format = frame->format;
|
|
switch(avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
avci->initial_width = frame->width;
|
|
avci->initial_height = frame->height;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
avci->initial_sample_rate = frame->sample_rate ? frame->sample_rate :
|
|
avctx->sample_rate;
|
|
avci->initial_channels = frame->channels;
|
|
avci->initial_channel_layout = frame->channel_layout;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (avctx->frame_number > 1) {
|
|
changed = avci->initial_format != frame->format;
|
|
|
|
switch(avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
changed |= avci->initial_width != frame->width ||
|
|
avci->initial_height != frame->height;
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
changed |= avci->initial_sample_rate != frame->sample_rate ||
|
|
avci->initial_sample_rate != avctx->sample_rate ||
|
|
avci->initial_channels != frame->channels ||
|
|
avci->initial_channel_layout != frame->channel_layout;
|
|
break;
|
|
}
|
|
|
|
if (changed) {
|
|
avci->changed_frames_dropped++;
|
|
av_log(avctx, AV_LOG_INFO, "dropped changed frame #%d pts %"PRId64
|
|
" drop count: %d \n",
|
|
avctx->frame_number, frame->pts,
|
|
avci->changed_frames_dropped);
|
|
av_frame_unref(frame);
|
|
return AVERROR_INPUT_CHANGED;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int compat_decode(AVCodecContext *avctx, AVFrame *frame,
|
|
int *got_frame, const AVPacket *pkt)
|
|
{
|
|
AVCodecInternal *avci = avctx->internal;
|
|
int ret = 0;
|
|
|
|
av_assert0(avci->compat_decode_consumed == 0);
|
|
|
|
if (avci->draining_done && pkt && pkt->size != 0) {
|
|
av_log(avctx, AV_LOG_WARNING, "Got unexpected packet after EOF\n");
|
|
avcodec_flush_buffers(avctx);
|
|
}
|
|
|
|
*got_frame = 0;
|
|
|
|
if (avci->compat_decode_partial_size > 0 &&
|
|
avci->compat_decode_partial_size != pkt->size) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Got unexpected packet size after a partial decode\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto finish;
|
|
}
|
|
|
|
if (!avci->compat_decode_partial_size) {
|
|
ret = avcodec_send_packet(avctx, pkt);
|
|
if (ret == AVERROR_EOF)
|
|
ret = 0;
|
|
else if (ret == AVERROR(EAGAIN)) {
|
|
/* we fully drain all the output in each decode call, so this should not
|
|
* ever happen */
|
|
ret = AVERROR_BUG;
|
|
goto finish;
|
|
} else if (ret < 0)
|
|
goto finish;
|
|
}
|
|
|
|
while (ret >= 0) {
|
|
ret = avcodec_receive_frame(avctx, frame);
|
|
if (ret < 0) {
|
|
if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
|
|
ret = 0;
|
|
goto finish;
|
|
}
|
|
|
|
if (frame != avci->compat_decode_frame) {
|
|
if (!avctx->refcounted_frames) {
|
|
ret = unrefcount_frame(avci, frame);
|
|
if (ret < 0)
|
|
goto finish;
|
|
}
|
|
|
|
*got_frame = 1;
|
|
frame = avci->compat_decode_frame;
|
|
} else {
|
|
if (!avci->compat_decode_warned) {
|
|
av_log(avctx, AV_LOG_WARNING, "The deprecated avcodec_decode_* "
|
|
"API cannot return all the frames for this decoder. "
|
|
"Some frames will be dropped. Update your code to the "
|
|
"new decoding API to fix this.\n");
|
|
avci->compat_decode_warned = 1;
|
|
}
|
|
}
|
|
|
|
if (avci->draining || (!avctx->codec->bsfs && avci->compat_decode_consumed < pkt->size))
|
|
break;
|
|
}
|
|
|
|
finish:
|
|
if (ret == 0) {
|
|
/* if there are any bsfs then assume full packet is always consumed */
|
|
if (avctx->codec->bsfs)
|
|
ret = pkt->size;
|
|
else
|
|
ret = FFMIN(avci->compat_decode_consumed, pkt->size);
|
|
}
|
|
avci->compat_decode_consumed = 0;
|
|
avci->compat_decode_partial_size = (ret >= 0) ? pkt->size - ret : 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
|
|
int *got_picture_ptr,
|
|
const AVPacket *avpkt)
|
|
{
|
|
return compat_decode(avctx, picture, got_picture_ptr, avpkt);
|
|
}
|
|
|
|
int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx,
|
|
AVFrame *frame,
|
|
int *got_frame_ptr,
|
|
const AVPacket *avpkt)
|
|
{
|
|
return compat_decode(avctx, frame, got_frame_ptr, avpkt);
|
|
}
|
|
|
|
static void get_subtitle_defaults(AVSubtitle *sub)
|
|
{
|
|
memset(sub, 0, sizeof(*sub));
|
|
sub->pts = AV_NOPTS_VALUE;
|
|
}
|
|
|
|
#define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */
|
|
static int recode_subtitle(AVCodecContext *avctx,
|
|
AVPacket *outpkt, const AVPacket *inpkt)
|
|
{
|
|
#if CONFIG_ICONV
|
|
iconv_t cd = (iconv_t)-1;
|
|
int ret = 0;
|
|
char *inb, *outb;
|
|
size_t inl, outl;
|
|
AVPacket tmp;
|
|
#endif
|
|
|
|
if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER || inpkt->size == 0)
|
|
return 0;
|
|
|
|
#if CONFIG_ICONV
|
|
cd = iconv_open("UTF-8", avctx->sub_charenc);
|
|
av_assert0(cd != (iconv_t)-1);
|
|
|
|
inb = inpkt->data;
|
|
inl = inpkt->size;
|
|
|
|
if (inl >= INT_MAX / UTF8_MAX_BYTES - AV_INPUT_BUFFER_PADDING_SIZE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n");
|
|
ret = AVERROR(ENOMEM);
|
|
goto end;
|
|
}
|
|
|
|
ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES);
|
|
if (ret < 0)
|
|
goto end;
|
|
outpkt->buf = tmp.buf;
|
|
outpkt->data = tmp.data;
|
|
outpkt->size = tmp.size;
|
|
outb = outpkt->data;
|
|
outl = outpkt->size;
|
|
|
|
if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 ||
|
|
iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 ||
|
|
outl >= outpkt->size || inl != 0) {
|
|
ret = FFMIN(AVERROR(errno), -1);
|
|
av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" "
|
|
"from %s to UTF-8\n", inpkt->data, avctx->sub_charenc);
|
|
av_packet_unref(&tmp);
|
|
goto end;
|
|
}
|
|
outpkt->size -= outl;
|
|
memset(outpkt->data + outpkt->size, 0, outl);
|
|
|
|
end:
|
|
if (cd != (iconv_t)-1)
|
|
iconv_close(cd);
|
|
return ret;
|
|
#else
|
|
av_log(avctx, AV_LOG_ERROR, "requesting subtitles recoding without iconv");
|
|
return AVERROR(EINVAL);
|
|
#endif
|
|
}
|
|
|
|
static int utf8_check(const uint8_t *str)
|
|
{
|
|
const uint8_t *byte;
|
|
uint32_t codepoint, min;
|
|
|
|
while (*str) {
|
|
byte = str;
|
|
GET_UTF8(codepoint, *(byte++), return 0;);
|
|
min = byte - str == 1 ? 0 : byte - str == 2 ? 0x80 :
|
|
1 << (5 * (byte - str) - 4);
|
|
if (codepoint < min || codepoint >= 0x110000 ||
|
|
codepoint == 0xFFFE /* BOM */ ||
|
|
codepoint >= 0xD800 && codepoint <= 0xDFFF /* surrogates */)
|
|
return 0;
|
|
str = byte;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
#if FF_API_ASS_TIMING
|
|
static void insert_ts(AVBPrint *buf, int ts)
|
|
{
|
|
if (ts == -1) {
|
|
av_bprintf(buf, "9:59:59.99,");
|
|
} else {
|
|
int h, m, s;
|
|
|
|
h = ts/360000; ts -= 360000*h;
|
|
m = ts/ 6000; ts -= 6000*m;
|
|
s = ts/ 100; ts -= 100*s;
|
|
av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
|
|
}
|
|
}
|
|
|
|
static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
|
|
{
|
|
int i;
|
|
AVBPrint buf;
|
|
|
|
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
|
|
|
|
for (i = 0; i < sub->num_rects; i++) {
|
|
char *final_dialog;
|
|
const char *dialog;
|
|
AVSubtitleRect *rect = sub->rects[i];
|
|
int ts_start, ts_duration = -1;
|
|
long int layer;
|
|
|
|
if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
|
|
continue;
|
|
|
|
av_bprint_clear(&buf);
|
|
|
|
/* skip ReadOrder */
|
|
dialog = strchr(rect->ass, ',');
|
|
if (!dialog)
|
|
continue;
|
|
dialog++;
|
|
|
|
/* extract Layer or Marked */
|
|
layer = strtol(dialog, (char**)&dialog, 10);
|
|
if (*dialog != ',')
|
|
continue;
|
|
dialog++;
|
|
|
|
/* rescale timing to ASS time base (ms) */
|
|
ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
|
|
if (pkt->duration != -1)
|
|
ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
|
|
sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
|
|
|
|
/* construct ASS (standalone file form with timestamps) string */
|
|
av_bprintf(&buf, "Dialogue: %ld,", layer);
|
|
insert_ts(&buf, ts_start);
|
|
insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
|
|
av_bprintf(&buf, "%s\r\n", dialog);
|
|
|
|
final_dialog = av_strdup(buf.str);
|
|
if (!av_bprint_is_complete(&buf) || !final_dialog) {
|
|
av_freep(&final_dialog);
|
|
av_bprint_finalize(&buf, NULL);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
av_freep(&rect->ass);
|
|
rect->ass = final_dialog;
|
|
}
|
|
|
|
av_bprint_finalize(&buf, NULL);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
|
|
int *got_sub_ptr,
|
|
AVPacket *avpkt)
|
|
{
|
|
int i, ret = 0;
|
|
|
|
if (!avpkt->data && avpkt->size) {
|
|
av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
if (!avctx->codec)
|
|
return AVERROR(EINVAL);
|
|
if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
*got_sub_ptr = 0;
|
|
get_subtitle_defaults(sub);
|
|
|
|
if ((avctx->codec->capabilities & AV_CODEC_CAP_DELAY) || avpkt->size) {
|
|
AVPacket pkt_recoded = *avpkt;
|
|
|
|
ret = recode_subtitle(avctx, &pkt_recoded, avpkt);
|
|
if (ret < 0) {
|
|
*got_sub_ptr = 0;
|
|
} else {
|
|
ret = extract_packet_props(avctx->internal, &pkt_recoded);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (avctx->pkt_timebase.num && avpkt->pts != AV_NOPTS_VALUE)
|
|
sub->pts = av_rescale_q(avpkt->pts,
|
|
avctx->pkt_timebase, AV_TIME_BASE_Q);
|
|
ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded);
|
|
av_assert1((ret >= 0) >= !!*got_sub_ptr &&
|
|
!!*got_sub_ptr >= !!sub->num_rects);
|
|
|
|
#if FF_API_ASS_TIMING
|
|
if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
|
|
&& *got_sub_ptr && sub->num_rects) {
|
|
const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
|
|
: avctx->time_base;
|
|
int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
|
|
if (err < 0)
|
|
ret = err;
|
|
}
|
|
#endif
|
|
|
|
if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
|
|
avctx->pkt_timebase.num) {
|
|
AVRational ms = { 1, 1000 };
|
|
sub->end_display_time = av_rescale_q(avpkt->duration,
|
|
avctx->pkt_timebase, ms);
|
|
}
|
|
|
|
if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB)
|
|
sub->format = 0;
|
|
else if (avctx->codec_descriptor->props & AV_CODEC_PROP_TEXT_SUB)
|
|
sub->format = 1;
|
|
|
|
for (i = 0; i < sub->num_rects; i++) {
|
|
if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_IGNORE &&
|
|
sub->rects[i]->ass && !utf8_check(sub->rects[i]->ass)) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Invalid UTF-8 in decoded subtitles text; "
|
|
"maybe missing -sub_charenc option\n");
|
|
avsubtitle_free(sub);
|
|
ret = AVERROR_INVALIDDATA;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (avpkt->data != pkt_recoded.data) { // did we recode?
|
|
/* prevent from destroying side data from original packet */
|
|
pkt_recoded.side_data = NULL;
|
|
pkt_recoded.side_data_elems = 0;
|
|
|
|
av_packet_unref(&pkt_recoded);
|
|
}
|
|
}
|
|
|
|
if (*got_sub_ptr)
|
|
avctx->frame_number++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *avctx,
|
|
const enum AVPixelFormat *fmt)
|
|
{
|
|
const AVPixFmtDescriptor *desc;
|
|
const AVCodecHWConfig *config;
|
|
int i, n;
|
|
|
|
// If a device was supplied when the codec was opened, assume that the
|
|
// user wants to use it.
|
|
if (avctx->hw_device_ctx && avctx->codec->hw_configs) {
|
|
AVHWDeviceContext *device_ctx =
|
|
(AVHWDeviceContext*)avctx->hw_device_ctx->data;
|
|
for (i = 0;; i++) {
|
|
config = &avctx->codec->hw_configs[i]->public;
|
|
if (!config)
|
|
break;
|
|
if (!(config->methods &
|
|
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX))
|
|
continue;
|
|
if (device_ctx->type != config->device_type)
|
|
continue;
|
|
for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
|
|
if (config->pix_fmt == fmt[n])
|
|
return fmt[n];
|
|
}
|
|
}
|
|
}
|
|
// No device or other setup, so we have to choose from things which
|
|
// don't any other external information.
|
|
|
|
// If the last element of the list is a software format, choose it
|
|
// (this should be best software format if any exist).
|
|
for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
|
|
desc = av_pix_fmt_desc_get(fmt[n - 1]);
|
|
if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL))
|
|
return fmt[n - 1];
|
|
|
|
// Finally, traverse the list in order and choose the first entry
|
|
// with no external dependencies (if there is no hardware configuration
|
|
// information available then this just picks the first entry).
|
|
for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++) {
|
|
for (i = 0;; i++) {
|
|
config = avcodec_get_hw_config(avctx->codec, i);
|
|
if (!config)
|
|
break;
|
|
if (config->pix_fmt == fmt[n])
|
|
break;
|
|
}
|
|
if (!config) {
|
|
// No specific config available, so the decoder must be able
|
|
// to handle this format without any additional setup.
|
|
return fmt[n];
|
|
}
|
|
if (config->methods & AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
|
|
// Usable with only internal setup.
|
|
return fmt[n];
|
|
}
|
|
}
|
|
|
|
// Nothing is usable, give up.
|
|
return AV_PIX_FMT_NONE;
|
|
}
|
|
|
|
int ff_decode_get_hw_frames_ctx(AVCodecContext *avctx,
|
|
enum AVHWDeviceType dev_type)
|
|
{
|
|
AVHWDeviceContext *device_ctx;
|
|
AVHWFramesContext *frames_ctx;
|
|
int ret;
|
|
|
|
if (!avctx->hwaccel)
|
|
return AVERROR(ENOSYS);
|
|
|
|
if (avctx->hw_frames_ctx)
|
|
return 0;
|
|
if (!avctx->hw_device_ctx) {
|
|
av_log(avctx, AV_LOG_ERROR, "A hardware frames or device context is "
|
|
"required for hardware accelerated decoding.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
device_ctx = (AVHWDeviceContext *)avctx->hw_device_ctx->data;
|
|
if (device_ctx->type != dev_type) {
|
|
av_log(avctx, AV_LOG_ERROR, "Device type %s expected for hardware "
|
|
"decoding, but got %s.\n", av_hwdevice_get_type_name(dev_type),
|
|
av_hwdevice_get_type_name(device_ctx->type));
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
ret = avcodec_get_hw_frames_parameters(avctx,
|
|
avctx->hw_device_ctx,
|
|
avctx->hwaccel->pix_fmt,
|
|
&avctx->hw_frames_ctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
|
|
|
|
|
|
if (frames_ctx->initial_pool_size) {
|
|
// We guarantee 4 base work surfaces. The function above guarantees 1
|
|
// (the absolute minimum), so add the missing count.
|
|
frames_ctx->initial_pool_size += 3;
|
|
}
|
|
|
|
ret = av_hwframe_ctx_init(avctx->hw_frames_ctx);
|
|
if (ret < 0) {
|
|
av_buffer_unref(&avctx->hw_frames_ctx);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int avcodec_get_hw_frames_parameters(AVCodecContext *avctx,
|
|
AVBufferRef *device_ref,
|
|
enum AVPixelFormat hw_pix_fmt,
|
|
AVBufferRef **out_frames_ref)
|
|
{
|
|
AVBufferRef *frames_ref = NULL;
|
|
const AVCodecHWConfigInternal *hw_config;
|
|
const AVHWAccel *hwa;
|
|
int i, ret;
|
|
|
|
for (i = 0;; i++) {
|
|
hw_config = avctx->codec->hw_configs[i];
|
|
if (!hw_config)
|
|
return AVERROR(ENOENT);
|
|
if (hw_config->public.pix_fmt == hw_pix_fmt)
|
|
break;
|
|
}
|
|
|
|
hwa = hw_config->hwaccel;
|
|
if (!hwa || !hwa->frame_params)
|
|
return AVERROR(ENOENT);
|
|
|
|
frames_ref = av_hwframe_ctx_alloc(device_ref);
|
|
if (!frames_ref)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ret = hwa->frame_params(avctx, frames_ref);
|
|
if (ret >= 0) {
|
|
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)frames_ref->data;
|
|
|
|
if (frames_ctx->initial_pool_size) {
|
|
// If the user has requested that extra output surfaces be
|
|
// available then add them here.
|
|
if (avctx->extra_hw_frames > 0)
|
|
frames_ctx->initial_pool_size += avctx->extra_hw_frames;
|
|
|
|
// If frame threading is enabled then an extra surface per thread
|
|
// is also required.
|
|
if (avctx->active_thread_type & FF_THREAD_FRAME)
|
|
frames_ctx->initial_pool_size += avctx->thread_count;
|
|
}
|
|
|
|
*out_frames_ref = frames_ref;
|
|
} else {
|
|
av_buffer_unref(&frames_ref);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int hwaccel_init(AVCodecContext *avctx,
|
|
const AVCodecHWConfigInternal *hw_config)
|
|
{
|
|
const AVHWAccel *hwaccel;
|
|
int err;
|
|
|
|
hwaccel = hw_config->hwaccel;
|
|
if (hwaccel->capabilities & AV_HWACCEL_CODEC_CAP_EXPERIMENTAL &&
|
|
avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
|
|
av_log(avctx, AV_LOG_WARNING, "Ignoring experimental hwaccel: %s\n",
|
|
hwaccel->name);
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
if (hwaccel->priv_data_size) {
|
|
avctx->internal->hwaccel_priv_data =
|
|
av_mallocz(hwaccel->priv_data_size);
|
|
if (!avctx->internal->hwaccel_priv_data)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
avctx->hwaccel = hwaccel;
|
|
if (hwaccel->init) {
|
|
err = hwaccel->init(avctx);
|
|
if (err < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Failed setup for format %s: "
|
|
"hwaccel initialisation returned error.\n",
|
|
av_get_pix_fmt_name(hw_config->public.pix_fmt));
|
|
av_freep(&avctx->internal->hwaccel_priv_data);
|
|
avctx->hwaccel = NULL;
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hwaccel_uninit(AVCodecContext *avctx)
|
|
{
|
|
if (avctx->hwaccel && avctx->hwaccel->uninit)
|
|
avctx->hwaccel->uninit(avctx);
|
|
|
|
av_freep(&avctx->internal->hwaccel_priv_data);
|
|
|
|
avctx->hwaccel = NULL;
|
|
|
|
av_buffer_unref(&avctx->hw_frames_ctx);
|
|
}
|
|
|
|
int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt)
|
|
{
|
|
const AVPixFmtDescriptor *desc;
|
|
enum AVPixelFormat *choices;
|
|
enum AVPixelFormat ret, user_choice;
|
|
const AVCodecHWConfigInternal *hw_config;
|
|
const AVCodecHWConfig *config;
|
|
int i, n, err;
|
|
|
|
// Find end of list.
|
|
for (n = 0; fmt[n] != AV_PIX_FMT_NONE; n++);
|
|
// Must contain at least one entry.
|
|
av_assert0(n >= 1);
|
|
// If a software format is available, it must be the last entry.
|
|
desc = av_pix_fmt_desc_get(fmt[n - 1]);
|
|
if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL) {
|
|
// No software format is available.
|
|
} else {
|
|
avctx->sw_pix_fmt = fmt[n - 1];
|
|
}
|
|
|
|
choices = av_malloc_array(n + 1, sizeof(*choices));
|
|
if (!choices)
|
|
return AV_PIX_FMT_NONE;
|
|
|
|
memcpy(choices, fmt, (n + 1) * sizeof(*choices));
|
|
|
|
for (;;) {
|
|
// Remove the previous hwaccel, if there was one.
|
|
hwaccel_uninit(avctx);
|
|
|
|
user_choice = avctx->get_format(avctx, choices);
|
|
if (user_choice == AV_PIX_FMT_NONE) {
|
|
// Explicitly chose nothing, give up.
|
|
ret = AV_PIX_FMT_NONE;
|
|
break;
|
|
}
|
|
|
|
desc = av_pix_fmt_desc_get(user_choice);
|
|
if (!desc) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid format returned by "
|
|
"get_format() callback.\n");
|
|
ret = AV_PIX_FMT_NONE;
|
|
break;
|
|
}
|
|
av_log(avctx, AV_LOG_DEBUG, "Format %s chosen by get_format().\n",
|
|
desc->name);
|
|
|
|
for (i = 0; i < n; i++) {
|
|
if (choices[i] == user_choice)
|
|
break;
|
|
}
|
|
if (i == n) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid return from get_format(): "
|
|
"%s not in possible list.\n", desc->name);
|
|
ret = AV_PIX_FMT_NONE;
|
|
break;
|
|
}
|
|
|
|
if (avctx->codec->hw_configs) {
|
|
for (i = 0;; i++) {
|
|
hw_config = avctx->codec->hw_configs[i];
|
|
if (!hw_config)
|
|
break;
|
|
if (hw_config->public.pix_fmt == user_choice)
|
|
break;
|
|
}
|
|
} else {
|
|
hw_config = NULL;
|
|
}
|
|
|
|
if (!hw_config) {
|
|
// No config available, so no extra setup required.
|
|
ret = user_choice;
|
|
break;
|
|
}
|
|
config = &hw_config->public;
|
|
|
|
if (config->methods &
|
|
AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX &&
|
|
avctx->hw_frames_ctx) {
|
|
const AVHWFramesContext *frames_ctx =
|
|
(AVHWFramesContext*)avctx->hw_frames_ctx->data;
|
|
if (frames_ctx->format != user_choice) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
|
|
"does not match the format of the provided frames "
|
|
"context.\n", desc->name);
|
|
goto try_again;
|
|
}
|
|
} else if (config->methods &
|
|
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX &&
|
|
avctx->hw_device_ctx) {
|
|
const AVHWDeviceContext *device_ctx =
|
|
(AVHWDeviceContext*)avctx->hw_device_ctx->data;
|
|
if (device_ctx->type != config->device_type) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
|
|
"does not match the type of the provided device "
|
|
"context.\n", desc->name);
|
|
goto try_again;
|
|
}
|
|
} else if (config->methods &
|
|
AV_CODEC_HW_CONFIG_METHOD_INTERNAL) {
|
|
// Internal-only setup, no additional configuration.
|
|
} else if (config->methods &
|
|
AV_CODEC_HW_CONFIG_METHOD_AD_HOC) {
|
|
// Some ad-hoc configuration we can't see and can't check.
|
|
} else {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid setup for format %s: "
|
|
"missing configuration.\n", desc->name);
|
|
goto try_again;
|
|
}
|
|
if (hw_config->hwaccel) {
|
|
av_log(avctx, AV_LOG_DEBUG, "Format %s requires hwaccel "
|
|
"initialisation.\n", desc->name);
|
|
err = hwaccel_init(avctx, hw_config);
|
|
if (err < 0)
|
|
goto try_again;
|
|
}
|
|
ret = user_choice;
|
|
break;
|
|
|
|
try_again:
|
|
av_log(avctx, AV_LOG_DEBUG, "Format %s not usable, retrying "
|
|
"get_format() without it.\n", desc->name);
|
|
for (i = 0; i < n; i++) {
|
|
if (choices[i] == user_choice)
|
|
break;
|
|
}
|
|
for (; i + 1 < n; i++)
|
|
choices[i] = choices[i + 1];
|
|
--n;
|
|
}
|
|
|
|
av_freep(&choices);
|
|
return ret;
|
|
}
|
|
|
|
static void frame_pool_free(void *opaque, uint8_t *data)
|
|
{
|
|
FramePool *pool = (FramePool*)data;
|
|
int i;
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++)
|
|
av_buffer_pool_uninit(&pool->pools[i]);
|
|
|
|
av_freep(&data);
|
|
}
|
|
|
|
static AVBufferRef *frame_pool_alloc(void)
|
|
{
|
|
FramePool *pool = av_mallocz(sizeof(*pool));
|
|
AVBufferRef *buf;
|
|
|
|
if (!pool)
|
|
return NULL;
|
|
|
|
buf = av_buffer_create((uint8_t*)pool, sizeof(*pool),
|
|
frame_pool_free, NULL, 0);
|
|
if (!buf) {
|
|
av_freep(&pool);
|
|
return NULL;
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
FramePool *pool = avctx->internal->pool ?
|
|
(FramePool*)avctx->internal->pool->data : NULL;
|
|
AVBufferRef *pool_buf;
|
|
int i, ret, ch, planes;
|
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
int planar = av_sample_fmt_is_planar(frame->format);
|
|
ch = frame->channels;
|
|
planes = planar ? ch : 1;
|
|
}
|
|
|
|
if (pool && pool->format == frame->format) {
|
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO &&
|
|
pool->width == frame->width && pool->height == frame->height)
|
|
return 0;
|
|
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && pool->planes == planes &&
|
|
pool->channels == ch && frame->nb_samples == pool->samples)
|
|
return 0;
|
|
}
|
|
|
|
pool_buf = frame_pool_alloc();
|
|
if (!pool_buf)
|
|
return AVERROR(ENOMEM);
|
|
pool = (FramePool*)pool_buf->data;
|
|
|
|
switch (avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO: {
|
|
uint8_t *data[4];
|
|
int linesize[4];
|
|
int size[4] = { 0 };
|
|
int w = frame->width;
|
|
int h = frame->height;
|
|
int tmpsize, unaligned;
|
|
|
|
avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align);
|
|
|
|
do {
|
|
// NOTE: do not align linesizes individually, this breaks e.g. assumptions
|
|
// that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2
|
|
ret = av_image_fill_linesizes(linesize, avctx->pix_fmt, w);
|
|
if (ret < 0)
|
|
goto fail;
|
|
// increase alignment of w for next try (rhs gives the lowest bit set in w)
|
|
w += w & ~(w - 1);
|
|
|
|
unaligned = 0;
|
|
for (i = 0; i < 4; i++)
|
|
unaligned |= linesize[i] % pool->stride_align[i];
|
|
} while (unaligned);
|
|
|
|
tmpsize = av_image_fill_pointers(data, avctx->pix_fmt, h,
|
|
NULL, linesize);
|
|
if (tmpsize < 0) {
|
|
ret = tmpsize;
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0; i < 3 && data[i + 1]; i++)
|
|
size[i] = data[i + 1] - data[i];
|
|
size[i] = tmpsize - (data[i] - data[0]);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
pool->linesize[i] = linesize[i];
|
|
if (size[i]) {
|
|
pool->pools[i] = av_buffer_pool_init(size[i] + 16 + STRIDE_ALIGN - 1,
|
|
CONFIG_MEMORY_POISONING ?
|
|
NULL :
|
|
av_buffer_allocz);
|
|
if (!pool->pools[i]) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
pool->format = frame->format;
|
|
pool->width = frame->width;
|
|
pool->height = frame->height;
|
|
|
|
break;
|
|
}
|
|
case AVMEDIA_TYPE_AUDIO: {
|
|
ret = av_samples_get_buffer_size(&pool->linesize[0], ch,
|
|
frame->nb_samples, frame->format, 0);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL);
|
|
if (!pool->pools[0]) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
pool->format = frame->format;
|
|
pool->planes = planes;
|
|
pool->channels = ch;
|
|
pool->samples = frame->nb_samples;
|
|
break;
|
|
}
|
|
default: av_assert0(0);
|
|
}
|
|
|
|
av_buffer_unref(&avctx->internal->pool);
|
|
avctx->internal->pool = pool_buf;
|
|
|
|
return 0;
|
|
fail:
|
|
av_buffer_unref(&pool_buf);
|
|
return ret;
|
|
}
|
|
|
|
static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
FramePool *pool = (FramePool*)avctx->internal->pool->data;
|
|
int planes = pool->planes;
|
|
int i;
|
|
|
|
frame->linesize[0] = pool->linesize[0];
|
|
|
|
if (planes > AV_NUM_DATA_POINTERS) {
|
|
frame->extended_data = av_mallocz_array(planes, sizeof(*frame->extended_data));
|
|
frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
|
|
frame->extended_buf = av_mallocz_array(frame->nb_extended_buf,
|
|
sizeof(*frame->extended_buf));
|
|
if (!frame->extended_data || !frame->extended_buf) {
|
|
av_freep(&frame->extended_data);
|
|
av_freep(&frame->extended_buf);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
} else {
|
|
frame->extended_data = frame->data;
|
|
av_assert0(frame->nb_extended_buf == 0);
|
|
}
|
|
|
|
for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
|
|
frame->buf[i] = av_buffer_pool_get(pool->pools[0]);
|
|
if (!frame->buf[i])
|
|
goto fail;
|
|
frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
|
|
}
|
|
for (i = 0; i < frame->nb_extended_buf; i++) {
|
|
frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]);
|
|
if (!frame->extended_buf[i])
|
|
goto fail;
|
|
frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
|
|
}
|
|
|
|
if (avctx->debug & FF_DEBUG_BUFFERS)
|
|
av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame);
|
|
|
|
return 0;
|
|
fail:
|
|
av_frame_unref(frame);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
static int video_get_buffer(AVCodecContext *s, AVFrame *pic)
|
|
{
|
|
FramePool *pool = (FramePool*)s->internal->pool->data;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format);
|
|
int i;
|
|
|
|
if (pic->data[0] || pic->data[1] || pic->data[2] || pic->data[3]) {
|
|
av_log(s, AV_LOG_ERROR, "pic->data[*]!=NULL in avcodec_default_get_buffer\n");
|
|
return -1;
|
|
}
|
|
|
|
if (!desc) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"Unable to get pixel format descriptor for format %s\n",
|
|
av_get_pix_fmt_name(pic->format));
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
memset(pic->data, 0, sizeof(pic->data));
|
|
pic->extended_data = pic->data;
|
|
|
|
for (i = 0; i < 4 && pool->pools[i]; i++) {
|
|
pic->linesize[i] = pool->linesize[i];
|
|
|
|
pic->buf[i] = av_buffer_pool_get(pool->pools[i]);
|
|
if (!pic->buf[i])
|
|
goto fail;
|
|
|
|
pic->data[i] = pic->buf[i]->data;
|
|
}
|
|
for (; i < AV_NUM_DATA_POINTERS; i++) {
|
|
pic->data[i] = NULL;
|
|
pic->linesize[i] = 0;
|
|
}
|
|
if (desc->flags & AV_PIX_FMT_FLAG_PAL ||
|
|
((desc->flags & FF_PSEUDOPAL) && pic->data[1]))
|
|
avpriv_set_systematic_pal2((uint32_t *)pic->data[1], pic->format);
|
|
|
|
if (s->debug & FF_DEBUG_BUFFERS)
|
|
av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic);
|
|
|
|
return 0;
|
|
fail:
|
|
av_frame_unref(pic);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags)
|
|
{
|
|
int ret;
|
|
|
|
if (avctx->hw_frames_ctx) {
|
|
ret = av_hwframe_get_buffer(avctx->hw_frames_ctx, frame, 0);
|
|
frame->width = avctx->coded_width;
|
|
frame->height = avctx->coded_height;
|
|
return ret;
|
|
}
|
|
|
|
if ((ret = update_frame_pool(avctx, frame)) < 0)
|
|
return ret;
|
|
|
|
switch (avctx->codec_type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
return video_get_buffer(avctx, frame);
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
return audio_get_buffer(avctx, frame);
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
static int add_metadata_from_side_data(const AVPacket *avpkt, AVFrame *frame)
|
|
{
|
|
int size;
|
|
const uint8_t *side_metadata;
|
|
|
|
AVDictionary **frame_md = &frame->metadata;
|
|
|
|
side_metadata = av_packet_get_side_data(avpkt,
|
|
AV_PKT_DATA_STRINGS_METADATA, &size);
|
|
return av_packet_unpack_dictionary(side_metadata, size, frame_md);
|
|
}
|
|
|
|
int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
const AVPacket *pkt = avctx->internal->last_pkt_props;
|
|
int i;
|
|
static const struct {
|
|
enum AVPacketSideDataType packet;
|
|
enum AVFrameSideDataType frame;
|
|
} sd[] = {
|
|
{ AV_PKT_DATA_REPLAYGAIN , AV_FRAME_DATA_REPLAYGAIN },
|
|
{ AV_PKT_DATA_DISPLAYMATRIX, AV_FRAME_DATA_DISPLAYMATRIX },
|
|
{ AV_PKT_DATA_SPHERICAL, AV_FRAME_DATA_SPHERICAL },
|
|
{ AV_PKT_DATA_STEREO3D, AV_FRAME_DATA_STEREO3D },
|
|
{ AV_PKT_DATA_AUDIO_SERVICE_TYPE, AV_FRAME_DATA_AUDIO_SERVICE_TYPE },
|
|
{ AV_PKT_DATA_MASTERING_DISPLAY_METADATA, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA },
|
|
{ AV_PKT_DATA_CONTENT_LIGHT_LEVEL, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL },
|
|
{ AV_PKT_DATA_A53_CC, AV_FRAME_DATA_A53_CC },
|
|
{ AV_PKT_DATA_ICC_PROFILE, AV_FRAME_DATA_ICC_PROFILE },
|
|
};
|
|
|
|
if (pkt) {
|
|
frame->pts = pkt->pts;
|
|
#if FF_API_PKT_PTS
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
frame->pkt_pts = pkt->pts;
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
frame->pkt_pos = pkt->pos;
|
|
frame->pkt_duration = pkt->duration;
|
|
frame->pkt_size = pkt->size;
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(sd); i++) {
|
|
int size;
|
|
uint8_t *packet_sd = av_packet_get_side_data(pkt, sd[i].packet, &size);
|
|
if (packet_sd) {
|
|
AVFrameSideData *frame_sd = av_frame_new_side_data(frame,
|
|
sd[i].frame,
|
|
size);
|
|
if (!frame_sd)
|
|
return AVERROR(ENOMEM);
|
|
|
|
memcpy(frame_sd->data, packet_sd, size);
|
|
}
|
|
}
|
|
add_metadata_from_side_data(pkt, frame);
|
|
|
|
if (pkt->flags & AV_PKT_FLAG_DISCARD) {
|
|
frame->flags |= AV_FRAME_FLAG_DISCARD;
|
|
} else {
|
|
frame->flags = (frame->flags & ~AV_FRAME_FLAG_DISCARD);
|
|
}
|
|
}
|
|
frame->reordered_opaque = avctx->reordered_opaque;
|
|
|
|
if (frame->color_primaries == AVCOL_PRI_UNSPECIFIED)
|
|
frame->color_primaries = avctx->color_primaries;
|
|
if (frame->color_trc == AVCOL_TRC_UNSPECIFIED)
|
|
frame->color_trc = avctx->color_trc;
|
|
if (frame->colorspace == AVCOL_SPC_UNSPECIFIED)
|
|
frame->colorspace = avctx->colorspace;
|
|
if (frame->color_range == AVCOL_RANGE_UNSPECIFIED)
|
|
frame->color_range = avctx->color_range;
|
|
if (frame->chroma_location == AVCHROMA_LOC_UNSPECIFIED)
|
|
frame->chroma_location = avctx->chroma_sample_location;
|
|
|
|
switch (avctx->codec->type) {
|
|
case AVMEDIA_TYPE_VIDEO:
|
|
frame->format = avctx->pix_fmt;
|
|
if (!frame->sample_aspect_ratio.num)
|
|
frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
|
|
|
|
if (frame->width && frame->height &&
|
|
av_image_check_sar(frame->width, frame->height,
|
|
frame->sample_aspect_ratio) < 0) {
|
|
av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
|
|
frame->sample_aspect_ratio.num,
|
|
frame->sample_aspect_ratio.den);
|
|
frame->sample_aspect_ratio = (AVRational){ 0, 1 };
|
|
}
|
|
|
|
break;
|
|
case AVMEDIA_TYPE_AUDIO:
|
|
if (!frame->sample_rate)
|
|
frame->sample_rate = avctx->sample_rate;
|
|
if (frame->format < 0)
|
|
frame->format = avctx->sample_fmt;
|
|
if (!frame->channel_layout) {
|
|
if (avctx->channel_layout) {
|
|
if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
|
|
avctx->channels) {
|
|
av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
|
|
"configuration.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
frame->channel_layout = avctx->channel_layout;
|
|
} else {
|
|
if (avctx->channels > FF_SANE_NB_CHANNELS) {
|
|
av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
|
|
avctx->channels);
|
|
return AVERROR(ENOSYS);
|
|
}
|
|
}
|
|
}
|
|
frame->channels = avctx->channels;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void validate_avframe_allocation(AVCodecContext *avctx, AVFrame *frame)
|
|
{
|
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
int i;
|
|
int num_planes = av_pix_fmt_count_planes(frame->format);
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
|
|
int flags = desc ? desc->flags : 0;
|
|
if (num_planes == 1 && (flags & AV_PIX_FMT_FLAG_PAL))
|
|
num_planes = 2;
|
|
if ((flags & FF_PSEUDOPAL) && frame->data[1])
|
|
num_planes = 2;
|
|
for (i = 0; i < num_planes; i++) {
|
|
av_assert0(frame->data[i]);
|
|
}
|
|
// For formats without data like hwaccel allow unused pointers to be non-NULL.
|
|
for (i = num_planes; num_planes > 0 && i < FF_ARRAY_ELEMS(frame->data); i++) {
|
|
if (frame->data[i])
|
|
av_log(avctx, AV_LOG_ERROR, "Buffer returned by get_buffer2() did not zero unused plane pointers\n");
|
|
frame->data[i] = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void decode_data_free(void *opaque, uint8_t *data)
|
|
{
|
|
FrameDecodeData *fdd = (FrameDecodeData*)data;
|
|
|
|
if (fdd->post_process_opaque_free)
|
|
fdd->post_process_opaque_free(fdd->post_process_opaque);
|
|
|
|
if (fdd->hwaccel_priv_free)
|
|
fdd->hwaccel_priv_free(fdd->hwaccel_priv);
|
|
|
|
av_freep(&fdd);
|
|
}
|
|
|
|
int ff_attach_decode_data(AVFrame *frame)
|
|
{
|
|
AVBufferRef *fdd_buf;
|
|
FrameDecodeData *fdd;
|
|
|
|
av_assert1(!frame->private_ref);
|
|
av_buffer_unref(&frame->private_ref);
|
|
|
|
fdd = av_mallocz(sizeof(*fdd));
|
|
if (!fdd)
|
|
return AVERROR(ENOMEM);
|
|
|
|
fdd_buf = av_buffer_create((uint8_t*)fdd, sizeof(*fdd), decode_data_free,
|
|
NULL, AV_BUFFER_FLAG_READONLY);
|
|
if (!fdd_buf) {
|
|
av_freep(&fdd);
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
frame->private_ref = fdd_buf;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
|
|
{
|
|
const AVHWAccel *hwaccel = avctx->hwaccel;
|
|
int override_dimensions = 1;
|
|
int ret;
|
|
|
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) {
|
|
if ((ret = av_image_check_size2(FFALIGN(avctx->width, STRIDE_ALIGN), avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx)) < 0 || avctx->pix_fmt<0) {
|
|
av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
|
|
if (frame->width <= 0 || frame->height <= 0) {
|
|
frame->width = FFMAX(avctx->width, AV_CEIL_RSHIFT(avctx->coded_width, avctx->lowres));
|
|
frame->height = FFMAX(avctx->height, AV_CEIL_RSHIFT(avctx->coded_height, avctx->lowres));
|
|
override_dimensions = 0;
|
|
}
|
|
|
|
if (frame->data[0] || frame->data[1] || frame->data[2] || frame->data[3]) {
|
|
av_log(avctx, AV_LOG_ERROR, "pic->data[*]!=NULL in get_buffer_internal\n");
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
} else if (avctx->codec_type == AVMEDIA_TYPE_AUDIO) {
|
|
if (frame->nb_samples * (int64_t)avctx->channels > avctx->max_samples) {
|
|
av_log(avctx, AV_LOG_ERROR, "samples per frame %d, exceeds max_samples %"PRId64"\n", frame->nb_samples, avctx->max_samples);
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
}
|
|
ret = ff_decode_frame_props(avctx, frame);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
if (hwaccel) {
|
|
if (hwaccel->alloc_frame) {
|
|
ret = hwaccel->alloc_frame(avctx, frame);
|
|
goto end;
|
|
}
|
|
} else
|
|
avctx->sw_pix_fmt = avctx->pix_fmt;
|
|
|
|
ret = avctx->get_buffer2(avctx, frame, flags);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
validate_avframe_allocation(avctx, frame);
|
|
|
|
ret = ff_attach_decode_data(frame);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
end:
|
|
if (avctx->codec_type == AVMEDIA_TYPE_VIDEO && !override_dimensions &&
|
|
!(avctx->codec->caps_internal & FF_CODEC_CAP_EXPORTS_CROPPING)) {
|
|
frame->width = avctx->width;
|
|
frame->height = avctx->height;
|
|
}
|
|
|
|
fail:
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
|
|
av_frame_unref(frame);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags)
|
|
{
|
|
AVFrame *tmp;
|
|
int ret;
|
|
|
|
av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO);
|
|
|
|
if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) {
|
|
av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n",
|
|
frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt));
|
|
av_frame_unref(frame);
|
|
}
|
|
|
|
if (!frame->data[0])
|
|
return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
|
|
|
|
if ((flags & FF_REGET_BUFFER_FLAG_READONLY) || av_frame_is_writable(frame))
|
|
return ff_decode_frame_props(avctx, frame);
|
|
|
|
tmp = av_frame_alloc();
|
|
if (!tmp)
|
|
return AVERROR(ENOMEM);
|
|
|
|
av_frame_move_ref(tmp, frame);
|
|
|
|
ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF);
|
|
if (ret < 0) {
|
|
av_frame_free(&tmp);
|
|
return ret;
|
|
}
|
|
|
|
av_frame_copy(frame, tmp);
|
|
av_frame_free(&tmp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
|
|
{
|
|
int ret = reget_buffer_internal(avctx, frame, flags);
|
|
if (ret < 0)
|
|
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
|
|
return ret;
|
|
}
|