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filter/ffmpeg: use only one AVFrame 

The two were never used at the same time, and merging them saves one allocation.
This commit is contained in:
Max Kellermann 2019-03-24 22:29:57 +01:00
parent cc1822810f
commit 61120d2059
2 changed files with 12 additions and 12 deletions
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22
src/filter/plugins/FfmpegFilter.cxx
View File

@ -50,25 +50,25 @@ FfmpegFilter::FilterPCM(ConstBuffer<void> src)
{
/* submit source data into the FFmpeg audio buffer source */
in_frame.Unref();
in_frame->format = in_format;
in_frame->sample_rate = in_sample_rate;
in_frame->channels = in_channels;
in_frame->nb_samples = src.size / in_audio_frame_size;
frame.Unref();
frame->format = in_format;
frame->sample_rate = in_sample_rate;
frame->channels = in_channels;
frame->nb_samples = src.size / in_audio_frame_size;
in_frame.GetBuffer();
frame.GetBuffer();
memcpy(in_frame.GetData(0), src.data, src.size);
memcpy(frame.GetData(0), src.data, src.size);
int err = av_buffersrc_add_frame(buffer_src.get(), in_frame.get());
int err = av_buffersrc_add_frame(buffer_src.get(), frame.get());
if (err < 0)
throw MakeFfmpegError(err, "av_buffersrc_write_frame() failed");
/* collect filtered data from the FFmpeg audio buffer sink */
out_frame.Unref();
frame.Unref();
err = av_buffersink_get_frame(buffer_sink.get(), out_frame.get());
err = av_buffersink_get_frame(buffer_sink.get(), frame.get());
if (err < 0) {
if (err == AVERROR(EAGAIN) || err == AVERROR_EOF)
return nullptr;
@ -79,5 +79,5 @@ FfmpegFilter::FilterPCM(ConstBuffer<void> src)
/* TODO: call av_buffersink_get_frame() repeatedly? Not
possible with MPD's current Filter API */
return {out_frame.GetData(0), out_frame->nb_samples * GetOutAudioFormat().GetFrameSize()};
return {frame.GetData(0), frame->nb_samples * GetOutAudioFormat().GetFrameSize()};
}

2
src/filter/plugins/FfmpegFilter.hxx
View File

@ -30,7 +30,7 @@
class FfmpegFilter final : public Filter {
Ffmpeg::FilterGraph graph;
Ffmpeg::FilterContext buffer_src, buffer_sink;
Ffmpeg::Frame in_frame, out_frame;
Ffmpeg::Frame frame;
const int in_format, in_sample_rate, in_channels;