yes, libavformat and libavcodec will work for that.
in general...
inFormat = avformat_open_input(...);
outFormat = avformat_alloc_context(...);
for each input stream () {
avcodec_find_decoder();
avcodec_find_encoder();
avcodec_open(outFormat);
avcodec_open(inFormat);
}
avio_open(outFormat->pb);
av_write_header(outFormat);
while (1) {
frame = av_read_frame();
if (you need to change codec or modify the video somehow) {
if (frame is video) {
decodedFrame = avcodec_decode_video2(frame);
encodedFrame = avcodec_encode_video(decodedFrame);
writeframe(encodedFrame);
} else if (frame is audio) {
decodedFrame = avcodec_decode_audio3(frame);
encodedFrame = avcodec_encode_audio(encodedFrame);
writeframe(encodedFrame);
}
} else {
av_write_frame(frame);
}
}
av_close_input_file(inFormat);
avio_close(outFormat);
--luke
On Tue, Jan 24, 2012 at 4:43 PM, Ognen Duzlevski
<ognen.duzlev...@gmail.com>wrote:
> Hello,
>
> I am just beginning to dabble with video and sound programming on Linux.
> For starters I just want to make a simple program to grab a video from a
> webcam and record it. Can ffmpeg be used for this? Where do I find
> documentation on the API involved and, in general, where do I start? :)
>
> Thanks!
> OD
>
> --
> "Before you start searching for happiness, think about it - maybe you are
> already happy? Happiness is common, often invisible and many people usually
> can't see it." -- Dusko Radovic
>
>
> _______________________________________________
> Libav-user mailing list
> Libav-user@ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/libav-user
>
>
--
-
-
-
-
Luke Clemens
http://clemens.bytehammer.com
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