mirror of
https://github.com/pineappleEA/pineapple-src.git
synced 2024-12-05 01:48:24 -05:00
457 lines
14 KiB
C
Executable File
457 lines
14 KiB
C
Executable File
/*
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* generic encoding-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 "libavutil/attributes.h"
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#include "libavutil/avassert.h"
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#include "libavutil/frame.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/internal.h"
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#include "libavutil/samplefmt.h"
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#include "avcodec.h"
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#include "encode.h"
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#include "frame_thread_encoder.h"
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#include "internal.h"
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int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
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{
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if (size < 0 || size > INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE) {
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av_log(avctx, AV_LOG_ERROR, "Invalid minimum required packet size %"PRId64" (max allowed is %d)\n",
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size, INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
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return AVERROR(EINVAL);
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}
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av_assert0(!avpkt->data);
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if (avctx && 2*min_size < size) { // FIXME The factor needs to be finetuned
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av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size);
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avpkt->data = avctx->internal->byte_buffer;
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avpkt->size = size;
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}
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if (!avpkt->data) {
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int ret = av_new_packet(avpkt, size);
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if (ret < 0)
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av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %"PRId64"\n", size);
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return ret;
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}
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return 0;
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}
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/**
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* Pad last frame with silence.
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*/
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static int pad_last_frame(AVCodecContext *s, AVFrame *frame, const AVFrame *src)
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{
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int ret;
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frame->format = src->format;
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frame->channel_layout = src->channel_layout;
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frame->channels = src->channels;
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frame->nb_samples = s->frame_size;
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ret = av_frame_get_buffer(frame, 0);
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if (ret < 0)
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goto fail;
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ret = av_frame_copy_props(frame, src);
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if (ret < 0)
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goto fail;
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if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0,
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src->nb_samples, s->channels, s->sample_fmt)) < 0)
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goto fail;
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if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples,
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frame->nb_samples - src->nb_samples,
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s->channels, s->sample_fmt)) < 0)
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goto fail;
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return 0;
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fail:
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av_frame_unref(frame);
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return ret;
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}
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int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
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const AVSubtitle *sub)
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{
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int ret;
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if (sub->start_display_time) {
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av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n");
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return -1;
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}
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ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub);
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avctx->frame_number++;
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return ret;
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}
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int ff_encode_get_frame(AVCodecContext *avctx, AVFrame *frame)
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{
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AVCodecInternal *avci = avctx->internal;
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if (avci->draining)
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return AVERROR_EOF;
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if (!avci->buffer_frame->buf[0])
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return AVERROR(EAGAIN);
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av_frame_move_ref(frame, avci->buffer_frame);
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return 0;
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}
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static int encode_simple_internal(AVCodecContext *avctx, AVPacket *avpkt)
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{
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AVCodecInternal *avci = avctx->internal;
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EncodeSimpleContext *es = &avci->es;
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AVFrame *frame = es->in_frame;
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int got_packet;
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int ret;
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if (avci->draining_done)
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return AVERROR_EOF;
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if (!frame->buf[0] && !avci->draining) {
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av_frame_unref(frame);
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ret = ff_encode_get_frame(avctx, frame);
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if (ret < 0 && ret != AVERROR_EOF)
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return ret;
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}
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if (!frame->buf[0]) {
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if (!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY ||
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(avci->frame_thread_encoder && avctx->active_thread_type & FF_THREAD_FRAME)))
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return AVERROR_EOF;
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// Flushing is signaled with a NULL frame
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frame = NULL;
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}
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got_packet = 0;
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av_assert0(avctx->codec->encode2);
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if (CONFIG_FRAME_THREAD_ENCODER &&
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avci->frame_thread_encoder && (avctx->active_thread_type & FF_THREAD_FRAME))
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ret = ff_thread_video_encode_frame(avctx, avpkt, frame, &got_packet);
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else {
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ret = avctx->codec->encode2(avctx, avpkt, frame, &got_packet);
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if (avctx->codec->type == AVMEDIA_TYPE_VIDEO && !ret && got_packet &&
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!(avctx->codec->capabilities & AV_CODEC_CAP_DELAY))
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avpkt->pts = avpkt->dts = frame->pts;
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}
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av_assert0(ret <= 0);
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emms_c();
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if (!ret && got_packet) {
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if (avpkt->data) {
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ret = av_packet_make_refcounted(avpkt);
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if (ret < 0)
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goto end;
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}
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if (frame && !(avctx->codec->capabilities & AV_CODEC_CAP_DELAY)) {
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if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
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if (avpkt->pts == AV_NOPTS_VALUE)
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avpkt->pts = frame->pts;
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if (!avpkt->duration)
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avpkt->duration = ff_samples_to_time_base(avctx,
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frame->nb_samples);
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}
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}
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if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
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/* NOTE: if we add any audio encoders which output non-keyframe packets,
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* this needs to be moved to the encoders, but for now we can do it
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* here to simplify things */
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avpkt->flags |= AV_PKT_FLAG_KEY;
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avpkt->dts = avpkt->pts;
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}
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}
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if (avci->draining && !got_packet)
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avci->draining_done = 1;
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end:
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if (ret < 0 || !got_packet)
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av_packet_unref(avpkt);
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if (frame) {
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if (!ret)
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avctx->frame_number++;
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av_frame_unref(frame);
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}
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if (got_packet)
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// Encoders must always return ref-counted buffers.
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// Side-data only packets have no data and can be not ref-counted.
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av_assert0(!avpkt->data || avpkt->buf);
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return ret;
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}
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static int encode_simple_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
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{
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int ret;
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while (!avpkt->data && !avpkt->side_data) {
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ret = encode_simple_internal(avctx, avpkt);
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if (ret < 0)
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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 encode_receive_packet_internal(AVCodecContext *avctx, AVPacket *avpkt)
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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_done)
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return AVERROR_EOF;
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av_assert0(!avpkt->data && !avpkt->side_data);
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if (avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
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if ((avctx->flags & AV_CODEC_FLAG_PASS1) && avctx->stats_out)
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avctx->stats_out[0] = '\0';
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if (av_image_check_size2(avctx->width, avctx->height, avctx->max_pixels, AV_PIX_FMT_NONE, 0, avctx))
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return AVERROR(EINVAL);
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}
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if (avctx->codec->receive_packet) {
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ret = avctx->codec->receive_packet(avctx, avpkt);
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if (!ret)
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// Encoders must always return ref-counted buffers.
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// Side-data only packets have no data and can be not ref-counted.
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av_assert0(!avpkt->data || avpkt->buf);
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} else
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ret = encode_simple_receive_packet(avctx, avpkt);
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if (ret == AVERROR_EOF)
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avci->draining_done = 1;
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return ret;
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}
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static int encode_send_frame_internal(AVCodecContext *avctx, const AVFrame *src)
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{
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AVCodecInternal *avci = avctx->internal;
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AVFrame *dst = avci->buffer_frame;
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int ret;
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if (avctx->codec->type == AVMEDIA_TYPE_AUDIO) {
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/* extract audio service type metadata */
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AVFrameSideData *sd = av_frame_get_side_data(src, AV_FRAME_DATA_AUDIO_SERVICE_TYPE);
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if (sd && sd->size >= sizeof(enum AVAudioServiceType))
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avctx->audio_service_type = *(enum AVAudioServiceType*)sd->data;
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/* check for valid frame size */
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if (avctx->codec->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) {
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if (src->nb_samples > avctx->frame_size) {
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av_log(avctx, AV_LOG_ERROR, "more samples than frame size\n");
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return AVERROR(EINVAL);
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}
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} else if (!(avctx->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)) {
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/* if we already got an undersized frame, that must have been the last */
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if (avctx->internal->last_audio_frame) {
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av_log(avctx, AV_LOG_ERROR, "frame_size (%d) was not respected for a non-last frame\n", avctx->frame_size);
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return AVERROR(EINVAL);
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}
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if (src->nb_samples < avctx->frame_size) {
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ret = pad_last_frame(avctx, dst, src);
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if (ret < 0)
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return ret;
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avctx->internal->last_audio_frame = 1;
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} else if (src->nb_samples > avctx->frame_size) {
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av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d)\n", src->nb_samples, avctx->frame_size);
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return AVERROR(EINVAL);
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}
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}
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}
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if (!dst->data[0]) {
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ret = av_frame_ref(dst, src);
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if (ret < 0)
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return ret;
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}
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return 0;
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}
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int attribute_align_arg avcodec_send_frame(AVCodecContext *avctx, const AVFrame *frame)
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{
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AVCodecInternal *avci = avctx->internal;
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int ret;
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if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
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return AVERROR(EINVAL);
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if (avci->draining)
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return AVERROR_EOF;
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if (avci->buffer_frame->data[0])
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return AVERROR(EAGAIN);
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if (!frame) {
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avci->draining = 1;
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} else {
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ret = encode_send_frame_internal(avctx, frame);
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if (ret < 0)
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return ret;
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}
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if (!avci->buffer_pkt->data && !avci->buffer_pkt->side_data) {
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ret = encode_receive_packet_internal(avctx, avci->buffer_pkt);
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if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
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return ret;
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}
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return 0;
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}
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int attribute_align_arg avcodec_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
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{
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AVCodecInternal *avci = avctx->internal;
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int ret;
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av_packet_unref(avpkt);
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if (!avcodec_is_open(avctx) || !av_codec_is_encoder(avctx->codec))
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return AVERROR(EINVAL);
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if (avci->buffer_pkt->data || avci->buffer_pkt->side_data) {
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av_packet_move_ref(avpkt, avci->buffer_pkt);
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} else {
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ret = encode_receive_packet_internal(avctx, avpkt);
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if (ret < 0)
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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 compat_encode(AVCodecContext *avctx, AVPacket *avpkt,
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int *got_packet, const AVFrame *frame)
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{
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AVCodecInternal *avci = avctx->internal;
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AVPacket user_pkt;
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int ret;
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*got_packet = 0;
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if (frame && avctx->codec->type == AVMEDIA_TYPE_VIDEO) {
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if (frame->format == AV_PIX_FMT_NONE)
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av_log(avctx, AV_LOG_WARNING, "AVFrame.format is not set\n");
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if (frame->width == 0 || frame->height == 0)
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av_log(avctx, AV_LOG_WARNING, "AVFrame.width or height is not set\n");
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}
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ret = avcodec_send_frame(avctx, frame);
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if (ret == AVERROR_EOF)
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ret = 0;
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else if (ret == AVERROR(EAGAIN)) {
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/* we fully drain all the output in each encode call, so this should not
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* ever happen */
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return AVERROR_BUG;
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} else if (ret < 0)
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return ret;
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av_packet_move_ref(&user_pkt, avpkt);
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while (ret >= 0) {
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ret = avcodec_receive_packet(avctx, avpkt);
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if (ret < 0) {
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if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
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ret = 0;
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goto finish;
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}
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if (avpkt != avci->compat_encode_packet) {
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if (avpkt->data && user_pkt.data) {
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if (user_pkt.size >= avpkt->size) {
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memcpy(user_pkt.data, avpkt->data, avpkt->size);
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av_buffer_unref(&avpkt->buf);
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avpkt->buf = user_pkt.buf;
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avpkt->data = user_pkt.data;
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av_init_packet(&user_pkt);
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} else {
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av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size);
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av_packet_unref(avpkt);
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ret = AVERROR(EINVAL);
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goto finish;
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}
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}
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*got_packet = 1;
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avpkt = avci->compat_encode_packet;
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} else {
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if (!avci->compat_decode_warned) {
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av_log(avctx, AV_LOG_WARNING, "The deprecated avcodec_encode_* "
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"API cannot return all the packets for this encoder. "
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"Some packets will be dropped. Update your code to the "
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"new encoding API to fix this.\n");
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avci->compat_decode_warned = 1;
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av_packet_unref(avpkt);
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}
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}
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if (avci->draining)
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break;
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}
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finish:
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if (ret < 0)
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av_packet_unref(&user_pkt);
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return ret;
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}
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int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx,
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AVPacket *avpkt,
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const AVFrame *frame,
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int *got_packet_ptr)
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{
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int ret = compat_encode(avctx, avpkt, got_packet_ptr, frame);
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if (ret < 0)
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av_packet_unref(avpkt);
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return ret;
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}
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int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx,
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AVPacket *avpkt,
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const AVFrame *frame,
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int *got_packet_ptr)
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{
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int ret = compat_encode(avctx, avpkt, got_packet_ptr, frame);
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if (ret < 0)
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av_packet_unref(avpkt);
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return ret;
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}
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