mirror of https://git.ffmpeg.org/ffmpeg.git
avconv: factor flushing encoders out of output_packet().
This commit is contained in:
Anton Khirnov
parent
630902a1e1
commit
4a4ce2e743
169
avconv.c
169
avconv.c
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@ -1396,6 +1396,93 @@ static void generate_silence(uint8_t* buf, enum AVSampleFormat sample_fmt, size_
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memset(buf, fill_char, size);
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}
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static void flush_encoders(int ist_index, OutputStream *ost_table, int nb_ostreams)
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{
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int i, ret;
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for (i = 0; i < nb_ostreams; i++) {
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OutputStream *ost = &ost_table[i];
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if (ost->source_index == ist_index) {
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AVCodecContext *enc = ost->st->codec;
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AVFormatContext *os = output_files[ost->file_index].ctx;
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if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
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continue;
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if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
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continue;
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if (ost->encoding_needed) {
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for(;;) {
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AVPacket pkt;
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int fifo_bytes;
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av_init_packet(&pkt);
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pkt.stream_index= ost->index;
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switch (ost->st->codec->codec_type) {
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case AVMEDIA_TYPE_AUDIO:
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fifo_bytes = av_fifo_size(ost->fifo);
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ret = 0;
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/* encode any samples remaining in fifo */
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if (fifo_bytes > 0) {
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int osize = av_get_bytes_per_sample(enc->sample_fmt);
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int fs_tmp = enc->frame_size;
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av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
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if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
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enc->frame_size = fifo_bytes / (osize * enc->channels);
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} else { /* pad */
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int frame_bytes = enc->frame_size*osize*enc->channels;
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if (allocated_audio_buf_size < frame_bytes)
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exit_program(1);
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generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
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}
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ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
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pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
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ost->st->time_base.num, enc->sample_rate);
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enc->frame_size = fs_tmp;
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}
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if (ret <= 0) {
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ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
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}
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if (ret < 0) {
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fprintf(stderr, "Audio encoding failed\n");
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exit_program(1);
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}
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audio_size += ret;
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pkt.flags |= AV_PKT_FLAG_KEY;
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break;
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case AVMEDIA_TYPE_VIDEO:
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ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
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if (ret < 0) {
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fprintf(stderr, "Video encoding failed\n");
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exit_program(1);
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}
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video_size += ret;
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if(enc->coded_frame && enc->coded_frame->key_frame)
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pkt.flags |= AV_PKT_FLAG_KEY;
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if (ost->logfile && enc->stats_out) {
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fprintf(ost->logfile, "%s", enc->stats_out);
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}
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break;
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default:
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ret=-1;
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}
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if (ret <= 0)
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break;
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pkt.data = bit_buffer;
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pkt.size = ret;
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if (enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
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}
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}
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}
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}
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}
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/* pkt = NULL means EOF (needed to flush decoder buffers) */
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static int output_packet(InputStream *ist, int ist_index,
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OutputStream *ost_table, int nb_ostreams,
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@ -1713,87 +1800,7 @@ static int output_packet(InputStream *ist, int ist_index,
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discard_packet:
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if (pkt == NULL) {
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/* EOF handling */
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for(i=0;i<nb_ostreams;i++) {
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ost = &ost_table[i];
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if (ost->source_index == ist_index) {
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AVCodecContext *enc= ost->st->codec;
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os = output_files[ost->file_index].ctx;
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if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <=1)
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continue;
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if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE))
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continue;
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if (ost->encoding_needed) {
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for(;;) {
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AVPacket pkt;
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int fifo_bytes;
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av_init_packet(&pkt);
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pkt.stream_index= ost->index;
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switch(ost->st->codec->codec_type) {
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case AVMEDIA_TYPE_AUDIO:
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fifo_bytes = av_fifo_size(ost->fifo);
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ret = 0;
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/* encode any samples remaining in fifo */
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if (fifo_bytes > 0) {
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int osize = av_get_bytes_per_sample(enc->sample_fmt);
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int fs_tmp = enc->frame_size;
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av_fifo_generic_read(ost->fifo, audio_buf, fifo_bytes, NULL);
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if (enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
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enc->frame_size = fifo_bytes / (osize * enc->channels);
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} else { /* pad */
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int frame_bytes = enc->frame_size*osize*enc->channels;
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if (allocated_audio_buf_size < frame_bytes)
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exit_program(1);
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generate_silence(audio_buf+fifo_bytes, enc->sample_fmt, frame_bytes - fifo_bytes);
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}
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ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, (short *)audio_buf);
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pkt.duration = av_rescale((int64_t)enc->frame_size*ost->st->time_base.den,
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ost->st->time_base.num, enc->sample_rate);
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enc->frame_size = fs_tmp;
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}
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if(ret <= 0) {
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ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
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}
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if (ret < 0) {
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fprintf(stderr, "Audio encoding failed\n");
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exit_program(1);
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}
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audio_size += ret;
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pkt.flags |= AV_PKT_FLAG_KEY;
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break;
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case AVMEDIA_TYPE_VIDEO:
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ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, NULL);
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if (ret < 0) {
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fprintf(stderr, "Video encoding failed\n");
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exit_program(1);
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}
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video_size += ret;
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if(enc->coded_frame && enc->coded_frame->key_frame)
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pkt.flags |= AV_PKT_FLAG_KEY;
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if (ost->logfile && enc->stats_out) {
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fprintf(ost->logfile, "%s", enc->stats_out);
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}
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break;
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default:
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ret=-1;
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}
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if(ret<=0)
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break;
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pkt.data= bit_buffer;
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pkt.size= ret;
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if(enc->coded_frame && enc->coded_frame->pts != AV_NOPTS_VALUE)
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pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base);
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write_frame(os, &pkt, ost->st->codec, ost->bitstream_filters);
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}
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}
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}
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}
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flush_encoders(ist_index, ost_table, nb_ostreams);
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}
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return 0;
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