Hi, I have a mkv file with DTS stream.
I need the input audio format to pass to swr_convert for target format AV_SAMPLE_FMT_S16. However, after calling avcodec_open2, AVCodecContext->sample_fmt changed (incorrectly?) Is this a bug? ---------------------------------------------------------------------------- --------------------- AVCodecContext* avAudioCodecCtx = avFormatCtx->streams[audioStreamIndex]->codec; AVSampleFormat f = avAudioCodecCtx->sample_fmt; // AV_SAMPLE_FMT_FLTP avcodec_open2(avAudioCodecCtx, avAudioCodec, NULL); AVSampleFormat f2 = avAudioCodecCtx->sample_fmt; // AV_SAMPLE_FMT_S32P ---------------------------------------------------------------------------- --------------------- avcodec_decode_audio4(avAudioCodecCtx, frame, &frameComplete, avPacket); frame->format // contains AV_SAMPLE_FMT_FLTP ---------------------------------------------------------------------------- --------------------- ffprobe version N-79143-g8ff0f6a Copyright (c) 2007-2016 the FFmpeg developers built with gcc 5.3.0 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib libavutil 55. 19.100 / 55. 19.100 libavcodec 57. 30.100 / 57. 30.100 libavformat 57. 29.101 / 57. 29.101 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 40.102 / 6. 40.102 libswscale 4. 0.100 / 4. 0.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 Stream #0:1(eng): Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 768 kb/s (default) _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
