On 11/7/18, Vasiliy Volkov <[email protected]> wrote: > ср, 7 нояб. 2018 г. в 14:44, Paul B Mahol <[email protected]>: > >> On 11/7/18, Vasiliy Volkov <[email protected]> wrote: >> > ср, 7 нояб. 2018 г. в 14:14, Paul B Mahol <[email protected]>: >> > >> >> On 11/7/18, Vasiliy Volkov <[email protected]> wrote: >> >> > Hi, again, >> >> > >> >> > we've encountered an issue with decoding audio streams. Sometimes >> audio >> >> > codec headers are not aligned to PES packets (we work with mpegts). >> >> > So >> >> when >> >> > we try to decode such streams libav decoder fails, because he can't >> >> > find >> >> > where to start decoding process. For such task libav has parsers, >> which >> >> > need to be used for correct decoding arbitrary bitstreams: first you >> >> > find >> >> > position of header, next send to decoder. We've find that there are >> >> exists >> >> > private api for such task: libavcodec/mpegaudiodecheader.h but it's >> >> > private, and using it in our project is not very clean way, and all >> >> public >> >> > API's requires to use avio* methods which we don't like to use. >> >> > >> >> > Is there any other of private API way to find audio frames headers >> >> > positions? >> >> > >> >> >> >> What is wrong with using parsers? >> >> >> > >> > Parsers are private api and when we compile libav they are not >> > included, >> > so we need to copy header file into our project and then access -- it's >> not >> > good way. >> >> Why they are not included when you compile FFmpeg? >> > > Paul, ok, we've found why they are not included :) Not all headers take > into account in Makefile: > libavcodec/Makefile > HEADERS = ac3_parser.h \ > adts_parser.h \ > avcodec.h \ > avdct.h \ > avfft.h \ > d3d11va.h \ > dirac.h \ > dv_profile.h \ > dxva2.h \ > jni.h \ > mediacodec.h \ > qsv.h \ > vaapi.h \ > vdpau.h \ > version.h \ > videotoolbox.h \ > vorbis_parser.h \ > xvmc.h \ > > And libavcodec/mpegaudiodecheader.h just not selected here.
Please post configure line of your ffmpeg compilation. It is part of ffmpeg output wihtout -hide-banner. _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
