2018-02-12 9:53 GMT+01:00 Wiebe Cazemier <[email protected]>: > ----- Original Message ----- >> From: "Carl Eugen Hoyos" <[email protected]> >> To: "This list is about using libavcodec, libavformat, libavutil, >> libavdevice and libavfilter." <[email protected]> >> Sent: Sunday, 11 February, 2018 19:51:56 >> Subject: Re: [Libav-user] Speeding up codec detection of raw bitstream > >> 2018-02-11 19:09 GMT+01:00 Wiebe Cazemier <[email protected]>: >> >>> Correction, it's the following line that takes a while: >>> >>> avformat_find_stream_info(avFormatContext, NULL); >>> >>> In the docs I find this note with that function: "TODO: Let >>> the user decide somehow what information is needed so >>> that we do not waste time getting stuff the user does not >>> need. ". >>> >>> Still any options available to speed this up? >> >> Did you test to only enable the demuxers (and decoders) that you need? > > I was able to register only AC3 by creating an AVCodec with 'AVCodec* > avcodec_find_decoder (enum AVCodecID id)' and using avcodec_register
What I meant was: Did you test to only enable the needed demuxers (and decoders) at build time? Carl Eugen _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
