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examples/transcode-audio: use timebase rescaling

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lummax 2015-10-25 13:32:39 +01:00 committed by meh
parent 03740c31c0
commit e9a9ad5720
1 changed files with 3 additions and 1 deletions
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4
examples/transcode-audio.rs
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@ -5,6 +5,7 @@ use std::path::Path;
use ffmpeg::{format, codec, frame, media, filter}; use ffmpeg::{format, codec, frame, media, filter};
use ffmpeg::option::Settable; use ffmpeg::option::Settable;
use ffmpeg::{rescale, Rescale};
fn filter(spec: &str, decoder: &codec::decoder::Audio, encoder: &codec::encoder::Audio) -> Result<filter::Graph, ffmpeg::Error> { fn filter(spec: &str, decoder: &codec::decoder::Audio, encoder: &codec::encoder::Audio) -> Result<filter::Graph, ffmpeg::Error> {
let mut filter = filter::Graph::new(); let mut filter = filter::Graph::new();
@ -106,9 +107,10 @@ fn main() {
let mut transcoder = transcoder(&mut ictx, &mut octx, &output, &filter).unwrap(); let mut transcoder = transcoder(&mut ictx, &mut octx, &output, &filter).unwrap();
if let Some(position) = seek { if let Some(position) = seek {
// If the position was given in seconds, rescale it to ffmpegs base timebase.
let position = position.rescale((1, 1), rescale::TIME_BASE);
// If this seek was embedded in the transcoding loop, a call of `flush()` // If this seek was embedded in the transcoding loop, a call of `flush()`
// for every opened buffer after the successful seek would be advisable. // for every opened buffer after the successful seek would be advisable.
let position = position * ffmpeg::ffi::AV_TIME_BASE;
ictx.seek(position, ..position).unwrap(); ictx.seek(position, ..position).unwrap();
} }