virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

fixing output_example to work with current CVS libavcodec/libavformat patch by ("Andreas U. Trottmann": andreas trottmann, werft22 com)

Browse Source 
Originally committed as revision 4424 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Andreas Öman 2005-07-08 10:08:59 +00:00 committed by Michael Niedermayer
parent 6fd93ce271
commit 002c01a6f3
1 changed files with 7 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
output_example.c
View File

@ -37,6 +37,7 @@
#define STREAM_DURATION 5.0
#define STREAM_FRAME_RATE 25 /* 25 images/s */
#define STREAM_NB_FRAMES ((int)(STREAM_DURATION * STREAM_FRAME_RATE))
#define STREAM_PIX_FMT PIX_FMT_YUV420P /* default pix_fmt */
/**************************************************************/
/* audio output */
@ -150,7 +151,7 @@ void write_audio_frame(AVFormatContext *oc, AVStream *st)
pkt.size= avcodec_encode_audio(c, audio_outbuf, audio_outbuf_size, samples);
pkt.pts= c->coded_frame->pts;
pkt.pts= av_rescale_q(c->coded_frame->pts, c->time_base, st->time_base);
pkt.flags |= PKT_FLAG_KEY;
pkt.stream_index= st->index;
pkt.data= audio_outbuf;
@ -202,6 +203,7 @@ AVStream *add_video_stream(AVFormatContext *oc, int codec_id)
c->time_base.den = STREAM_FRAME_RATE;
c->time_base.num = 1;
c->gop_size = 12; /* emit one intra frame every twelve frames at most */
c->pix_fmt = STREAM_PIX_FMT;
if (c->codec_id == CODEC_ID_MPEG2VIDEO) {
/* just for testing, we also add B frames */
c->max_b_frames = 2;
@ -314,15 +316,13 @@ void write_video_frame(AVFormatContext *oc, AVStream *st)
{
int out_size, ret;
AVCodecContext *c;
AVFrame *picture_ptr;
c = &st->codec;
if (frame_count >= STREAM_NB_FRAMES) {
/* no more frame to compress. The codec has a latency of a few
frames if using B frames, so we get the last frames by
passing a NULL picture */
picture_ptr = NULL;
passing the same picture again */
} else {
if (c->pix_fmt != PIX_FMT_YUV420P) {
/* as we only generate a YUV420P picture, we must convert it
@ -334,7 +334,6 @@ void write_video_frame(AVFormatContext *oc, AVStream *st)
} else {
fill_yuv_image(picture, frame_count, c->width, c->height);
}
picture_ptr = picture;
}
@ -346,19 +345,19 @@ void write_video_frame(AVFormatContext *oc, AVStream *st)
pkt.flags |= PKT_FLAG_KEY;
pkt.stream_index= st->index;
pkt.data= (uint8_t *)picture_ptr;
pkt.data= (uint8_t *)picture;
pkt.size= sizeof(AVPicture);
ret = av_write_frame(oc, &pkt);
} else {
/* encode the image */
out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, picture_ptr);
out_size = avcodec_encode_video(c, video_outbuf, video_outbuf_size, picture);
/* if zero size, it means the image was buffered */
if (out_size != 0) {
AVPacket pkt;
av_init_packet(&pkt);
pkt.pts= c->coded_frame->pts;
pkt.pts= av_rescale_q(c->coded_frame->pts, c->time_base, st->time_base);
if(c->coded_frame->key_frame)
pkt.flags |= PKT_FLAG_KEY;
pkt.stream_index= st->index;