C++ (Cpp) AudioFormat::isValid Examples

Example #1

File: AudioDecoderFFmpeg.cpp Project: Jornason/QtAV

AudioFrame AudioDecoderFFmpeg::frame()
{
    DPTR_D(AudioDecoderFFmpeg);
    AudioFormat fmt;
    fmt.setSampleFormatFFmpeg(d.frame->format);
    fmt.setChannelLayoutFFmpeg(d.frame->channel_layout);
    fmt.setSampleRate(d.frame->sample_rate);
    if (!fmt.isValid()) {// need more data to decode to get a frame
        return AudioFrame();
    }
    AudioFrame f(fmt);
    //av_frame_get_pkt_duration ffmpeg
    f.setBits(d.frame->extended_data); // TODO: ref
    f.setBytesPerLine(d.frame->linesize[0], 0); // for correct alignment
    f.setSamplesPerChannel(d.frame->nb_samples);
    // TODO: ffplay check AVFrame.pts, pkt_pts, last_pts+nb_samples. move to AudioFrame::from(AVFrame*)
    f.setTimestamp((double)d.frame->pkt_pts/1000.0);
    f.setAudioResampler(d.resampler); // TODO: remove. it's not safe if frame is shared. use a pool or detach if ref >1
    return f;
}