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examples/transcode-audio: set global headers if needed

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lummax 2015-09-14 08:28:19 +02:00 committed by meh
parent 79ecba2fad
commit 7f0291bf78
1 changed files with 7 additions and 2 deletions
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9
examples/transcode-audio.rs
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@ -49,14 +49,19 @@ fn transcoder<P: AsRef<Path>>(ictx: &mut format::context::Input, octx: &mut form
let input = ictx.streams().best(media::Type::Audio).expect("could not find best audio stream"); let input = ictx.streams().best(media::Type::Audio).expect("could not find best audio stream");
let decoder = try!(input.codec().decoder().audio()); let decoder = try!(input.codec().decoder().audio());
let codec = try!(ffmpeg::encoder::find(octx.format().codec(path, media::Type::Audio)).expect("failed to find encoder").audio()); let codec = try!(ffmpeg::encoder::find(octx.format().codec(path, media::Type::Audio)).expect("failed to find encoder").audio());
let global = octx.format().flags().contains(ffmpeg::format::flag::GLOBAL_HEADER);
let mut output = octx.add_stream(&codec); let mut output = octx.add_stream(&codec);
let mut encoder = try!(output.codec().encoder().audio()); let mut encoder = try!(output.codec().encoder().audio());
let channel_layout = codec.channel_layouts() let channel_layout = codec.channel_layouts()
.map(|cls| cls.best(decoder.channel_layout().channels())) .map(|cls| cls.best(decoder.channel_layout().channels()))
.unwrap_or(ffmpeg::channel_layout::STEREO); .unwrap_or(ffmpeg::channel_layout::STEREO);
if global {
encoder.set_flags(ffmpeg::codec::flag::GLOBAL_HEADER);
}
encoder.set_rate(decoder.rate() as i32); encoder.set_rate(decoder.rate() as i32);
encoder.set_channel_layout(channel_layout); encoder.set_channel_layout(channel_layout);
encoder.set_channels(channel_layout.channels()); encoder.set_channels(channel_layout.channels());