Hi,
take a look at libavcodec\api-example.c and at libavformat\output-example.c
Ami
On 11/24/2010 5:01 PM, Jan Pohanka wrote:
Hello,
I'm trying to write simple application which will save a video in
desired format (avi, mkv, ...). I started with api_encode example and
it works fine until I use the raw format.
Now I would like to use avi for example, but I'm getting segmentation
fault error - os->streams[stream_index]->priv_data are not
initialized, I think.
AVFormatContext *os;
os = avformat_alloc_context();
AVStream *st;
st = av_new_stream(os, videoStream);
// what initializations should be here?
os->oformat = av_guess_format("avi", NULL, NULL)
for(;;) {
// prepare outpkt
av_interleaved_write_frame(os, &outpkt);
}
I'm trying to dig the answer from ffmpeg.c, but it is relatively
complicated and unfortunatelly I haven't found it yet.
Could someone please describe me the steps necessary for using
libavformat, please? There exists good tutorials on decoding, but none
for encoding the video.
best regards
Jan
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