Ping?
On Thu, Jun 14, 2018, at 17:48, Thomas Guillem wrote: > Cf. comment. Restart the VT session when the APP goes from foreground to > background and vice versa. > --- > libavcodec/videotoolboxenc.c | 23 +++++++++++++++++++++-- > 1 file changed, 21 insertions(+), 2 deletions(-) > > diff --git a/libavcodec/videotoolboxenc.c b/libavcodec/videotoolboxenc.c > index 1060055ba5..ac847358ab 100644 > --- a/libavcodec/videotoolboxenc.c > +++ b/libavcodec/videotoolboxenc.c > @@ -2175,8 +2175,27 @@ static int create_cv_pixel_buffer(AVCodecContext > *avctx, > #if TARGET_OS_IPHONE > pix_buf_pool = VTCompressionSessionGetPixelBufferPool(vtctx- > >session); > if (!pix_buf_pool) { > - av_log(avctx, AV_LOG_ERROR, "Could not get pixel buffer pool. > \n"); > - return AVERROR_EXTERNAL; > + /* On iOS, the VT session is invalidated when the APP switches > from > + * foreground to background and vice versa. Fetch the actual > error code > + * of the VT session to detect that case and restart the VT > session > + * accordingly. */ > + OSStatus vtstatus; > + > + vtstatus = VTCompressionSessionPrepareToEncodeFrames(vtctx- > >session); > + if (vtstatus == kVTInvalidSessionErr) { > + CFRelease(vtctx->session); > + vtctx->session = NULL; > + status = vtenc_configure_encoder(avctx); > + if (status == 0) > + pix_buf_pool = > VTCompressionSessionGetPixelBufferPool(vtctx->session); > + } > + if (!pix_buf_pool) { > + av_log(avctx, AV_LOG_ERROR, "Could not get pixel buffer > pool.\n"); > + return AVERROR_EXTERNAL; > + } > + else > + av_log(avctx, AV_LOG_WARNING, "VT session restarted because > of a " > + "kVTInvalidSessionErr error.\n"); > } > > status = CVPixelBufferPoolCreatePixelBuffer(NULL, > -- > 2.17.1 > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel