On Fri, Apr 17, 2015 at 07:21:23PM +0200, wm4 wrote:
> On Fri, 17 Apr 2015 19:04:02 +0200
> Michael Niedermayer <michae...@gmx.at> wrote:
>
> > This could be made optional if preferred
> > ---
> > libavcodec/mpegaudiodec_template.c | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/libavcodec/mpegaudiodec_template.c
> > b/libavcodec/mpegaudiodec_template.c
> > index 2326a90..70c17a1 100644
> > --- a/libavcodec/mpegaudiodec_template.c
> > +++ b/libavcodec/mpegaudiodec_template.c
> > @@ -87,6 +87,7 @@ typedef struct MPADecodeContext {
> > MPADSPContext mpadsp;
> > AVFloatDSPContext *fdsp;
> > AVFrame *frame;
> > + int flushed;
> > } MPADecodeContext;
> >
> > #define HEADER_SIZE 4
> > @@ -1645,6 +1646,11 @@ static int mp_decode_frame(MPADecodeContext *s,
> > OUT_INT **samples,
> > }
> > }
> >
> > + if (s->flushed) {
> > + s->avctx->internal->skip_samples =
> > FFMAX(s->avctx->internal->skip_samples, s->frame->nb_samples);
> > + s->flushed = 0;
> > + }
> > +
> > return nb_frames * 32 * sizeof(OUT_INT) * s->nb_channels;
> > }
> >
> > @@ -1723,6 +1729,7 @@ static void mp_flush(MPADecodeContext *ctx)
> > memset(ctx->mdct_buf, 0, sizeof(ctx->mdct_buf));
> > ctx->last_buf_size = 0;
> > ctx->dither_state = 0;
> > + ctx->flushed = 1;
> > }
> >
> > static void flush(AVCodecContext *avctx)
>
> Would this not break gapless audio if you seek back to the first frame
> after being done decoding? (Consider usecases like infinite looping.)i did not test it but the skip value from AVPacket should override this if its set the first packet should contain skip sidedata or the mp3 would start with a "half" empty output frame [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Freedom in capitalist society always remains about the same as it was in ancient Greek republics: Freedom for slave owners. -- Vladimir Lenin
signature.asc
Description: Digital signature
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
