[FFmpeg-cvslog] r21042 - trunk/ffmpeg.c
michael
subversion
Thu Jan 7 02:15:16 CET 2010
Author: michael
Date: Thu Jan 7 02:15:16 2010
New Revision: 21042
Log:
Fix stream copy & transcoding one stream at the same time.
Fixes issue1660.
Modified:
trunk/ffmpeg.c
Modified: trunk/ffmpeg.c
==============================================================================
--- trunk/ffmpeg.c Thu Jan 7 01:50:34 2010 (r21041)
+++ trunk/ffmpeg.c Thu Jan 7 02:15:16 2010 (r21042)
@@ -1299,8 +1299,8 @@ static int output_packet(AVInputStream *
//while we have more to decode or while the decoder did output something on EOF
while (avpkt.size > 0 || (!pkt && ist->next_pts != ist->pts)) {
- uint8_t *data_buf;
- int data_size;
+ uint8_t *data_buf, *decoded_data_buf;
+ int data_size, decoded_data_size;
handle_eof:
ist->pts= ist->next_pts;
@@ -1309,8 +1309,10 @@ static int output_packet(AVInputStream *
fprintf(stderr, "Multiple frames in a packet from stream %d\n", pkt->stream_index);
/* decode the packet if needed */
- data_buf = NULL; /* fail safe */
- data_size = 0;
+ decoded_data_buf = NULL; /* fail safe */
+ decoded_data_size= 0;
+ data_buf = avpkt.data;
+ data_size = avpkt.size;
subtitle_to_free = NULL;
if (ist->decoding_needed) {
switch(ist->st->codec->codec_type) {
@@ -1320,27 +1322,28 @@ static int output_packet(AVInputStream *
av_free(samples);
samples= av_malloc(samples_size);
}
- data_size= samples_size;
+ decoded_data_size= samples_size;
/* XXX: could avoid copy if PCM 16 bits with same
endianness as CPU */
- ret = avcodec_decode_audio3(ist->st->codec, samples, &data_size,
+ ret = avcodec_decode_audio3(ist->st->codec, samples, &decoded_data_size,
&avpkt);
if (ret < 0)
goto fail_decode;
avpkt.data += ret;
avpkt.size -= ret;
+ data_size = ret;
/* Some bug in mpeg audio decoder gives */
- /* data_size < 0, it seems they are overflows */
- if (data_size <= 0) {
+ /* decoded_data_size < 0, it seems they are overflows */
+ if (decoded_data_size <= 0) {
/* no audio frame */
continue;
}
- data_buf = (uint8_t *)samples;
- ist->next_pts += ((int64_t)AV_TIME_BASE/bps * data_size) /
+ decoded_data_buf = (uint8_t *)samples;
+ ist->next_pts += ((int64_t)AV_TIME_BASE/bps * decoded_data_size) /
(ist->st->codec->sample_rate * ist->st->codec->channels);
break;}
case CODEC_TYPE_VIDEO:
- data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
+ decoded_data_size = (ist->st->codec->width * ist->st->codec->height * 3) / 2;
/* XXX: allocate picture correctly */
avcodec_get_frame_defaults(&picture);
@@ -1390,8 +1393,6 @@ static int output_packet(AVInputStream *
}
break;
}
- data_buf = avpkt.data;
- data_size = avpkt.size;
ret = avpkt.size;
avpkt.size = 0;
}
@@ -1407,7 +1408,7 @@ static int output_packet(AVInputStream *
if (audio_volume != 256) {
short *volp;
volp = samples;
- for(i=0;i<(data_size / sizeof(short));i++) {
+ for(i=0;i<(decoded_data_size / sizeof(short));i++) {
int v = ((*volp) * audio_volume + 128) >> 8;
if (v < -32768) v = -32768;
if (v > 32767) v = 32767;
@@ -1438,9 +1439,10 @@ static int output_packet(AVInputStream *
//ost->sync_ipts = (double)(ist->pts + input_files_ts_offset[ist->file_index] - start_time)/ AV_TIME_BASE;
if (ost->encoding_needed) {
+ assert(ist->decoding_needed);
switch(ost->st->codec->codec_type) {
case CODEC_TYPE_AUDIO:
- do_audio_out(os, ost, ist, data_buf, data_size);
+ do_audio_out(os, ost, ist, decoded_data_buf, decoded_data_size);
break;
case CODEC_TYPE_VIDEO:
do_video_out(os, ost, ist, &picture, &frame_size);
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