> On 03 Jan 2017, at 17:55, Ronald S. Bultje <rsbul...@gmail.com> wrote: > > Hi, > > On Tue, Jan 3, 2017 at 11:44 AM, Matthieu Beghin < > matthieu.beg...@garagecube.com> wrote: > >>> I'm assuming that you're talking about 8K H264 with pixfmt=yuv420p10? 8K >> yuv420p10 frames are 100MB >> >> Correct >> >>> 32 plus delayed output and current_pic gives H264_MAX_PICTURE_COUNT = 36 >> without threading: 36*100=3.6GB. >> >> What do you mean by "delayed output” ? Can you link me to a document ? > > > Out-of-order coded P-frames, they are buffered internally but not counted > (and thus extra) on top of the max_refs value. I believe the spec calls > this dpb (delayed pic buffer). > >> Or maybe consider ditching 32bit support? >> >> Unfortunately, that’s 10 years old app using OSX Carbon library (not 64 >> bits), and rewriting that part would be too much work. >> > > I'm frowning at you. Really badly. > > As an alternative, is there a way to know how much bytes are buffered ? >> Iterating buffered frames ? > > > What are you hoping to accomplish by knowing how many bytes are buffered? > It doesn't solve the problem? But anyway, check > H264Context->short/long_ref[]; delayed_pic[] gives you the delayed output. >
I’m trying to let people use 8k movies if it will fit, but in case it would use more than 1 GB, refuse to load the file. My application is a live application, it cannot crash, and actually, it can... So to know how much bytes livavcodec is using, I have to know the number of frames / field, if it is interlaced and the number of delayed frames, that's correct ? How can I know the number of frames / field ? To know if it’s interlaced: AVFrame::interlaced_frame Number of delayed frames ? Another solution is to start playing the movie and to check the buffered data amount each time I decode a frame, then stop the movie if it uses more than 1 GB... In this case, just iterating H264Context->short/long_ref[]; delayed_pic[] would be enough ? How can I get the H264Context ? Thanks ! Matthieu > Ronald > _______________________________________________ > 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
