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CODEC_CAP_SMALL_LAST_FRAME patch by Justin Ruggles jruggle earthlink net

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Originally committed as revision 5512 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2006-06-24 09:25:21 +00:00 committed by Michael Niedermayer
parent a66d63a94e
commit cef7cc7232
2 changed files with 23 additions and 1 deletions
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19
ffmpeg.c
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@ -1358,12 +1358,29 @@ static int output_packet(AVInputStream *ist, int ist_index,
if (ost->encoding_needed) {
for(;;) {
AVPacket pkt;
int fifo_bytes;
av_init_packet(&pkt);
pkt.stream_index= ost->index;
switch(ost->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
fifo_bytes = fifo_size(&ost->fifo, NULL);
ret = 0;
/* encode any samples remaining in fifo */
if(fifo_bytes > 0 && enc->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) {
int fs_tmp = enc->frame_size;
enc->frame_size = fifo_bytes / (2 * enc->channels);
if(fifo_read(&ost->fifo, (uint8_t *)samples, fifo_bytes,
&ost->fifo.rptr) == 0) {
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, samples);
}
enc->frame_size = fs_tmp;
if(ret <= 0) {
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
}
} else {
ret = avcodec_encode_audio(enc, bit_buffer, bit_buffer_size, NULL);
}
audio_size += ret;
pkt.flags |= PKT_FLAG_KEY;
break;

5
libavcodec/avcodec.h
View File

@ -365,6 +365,11 @@ extern int motion_estimation_method;
* if this is not set, the codec is guranteed to never be feeded with NULL data
*/
#define CODEC_CAP_DELAY 0x0020
/**
* Codec can be fed a final frame with a smaller size.
* This can be used to prevent truncation of the last audio samples.
*/
#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
//the following defines may change, don't expect compatibility if you use them
#define MB_TYPE_INTRA4x4 0x0001