> In addition to the command line, could you kindly also post the > complete, uncut console output of a working and a non-working attempt? > Even if you have no warning or error messages, the outputs contain > valuable information.
Please see the complete console output at the end of this message. > Furthermore, instead of (or in addition to) testing releases, please > also try latest git master I've try the latest release ffmpeg version N-89803-g856b7cae9f-tessus. Same behavior. > Does removing "-threads 0" help? It does not help. Exactly same behavior. > Why are you updating to 3.3 and not 3.4.x? While I can understand why > you may want to stick to releases, why an older one? Good point. I will bring it up with the team today. However, 3.4 seems to hang at the same line at the console output (but Lavc version is different). > P.S.: With my artificially created input, I couldn't reproduce. My inputs can be found here https://s3.amazonaws.com/it6dc/public/ffmpeg-cat/inputs.zip Is there anyway I can get your artificially created input also? Please see the complete output from FFmpeg below: ffmpeg -i topia.flac -i topia_png.flac -threads 0 -map_chapters -1 -f flac -filter_complex "[0:a:0][1:a:0]concat=n=2:v=0:a=1[cat_a]" -map "[cat_a]" -acodec flac -sample_fmt s16 -ac 2 -ar 44100 -sn -vn topia.flac+topia_png.flac.flac -map 1:1 -f image2 -vcodec copy -frames:v 1 extract.png ffmpeg version 3.3-tessus Copyright (c) 2000-2017 the FFmpeg developers built with Apple LLVM version 8.0.0 (clang-800.0.42.1) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzmq --enable-libzvbi --enable-version3 --disable-ffplay --disable-indev=qtkit libavutil 55. 58.100 / 55. 58.100 libavcodec 57. 89.100 / 57. 89.100 libavformat 57. 71.100 / 57. 71.100 libavdevice 57. 6.100 / 57. 6.100 libavfilter 6. 82.100 / 6. 82.100 libswscale 4. 6.100 / 4. 6.100 libswresample 2. 7.100 / 2. 7.100 libpostproc 54. 5.100 / 54. 5.100 Input #0, flac, from 'topia.flac': Metadata: MAJOR_BRAND : dash MINOR_VERSION : 0 COMPATIBLE_BRANDS: iso6mp41 ENCODER : Lavf57.25.100 Duration: 00:00:05.00, start: 0.000000, bitrate: 678 kb/s Stream #0:0: Audio: flac, 44100 Hz, stereo, s16 Input #1, flac, from 'topia_png.flac': Metadata: MAJOR_BRAND : dash MINOR_VERSION : 0 COMPATIBLE_BRANDS: iso6mp41 ENCODER : Lavf57.25.100 Duration: 00:00:05.00, start: 0.000000, bitrate: 961 kb/s Stream #1:0: Audio: flac, 44100 Hz, stereo, s16 Stream #1:1: Video: png, rgba(pc), 300x300, 90k tbr, 90k tbn, 90k tbc Metadata: comment : Cover (front) Output #1, image2, to 'extract.png': Metadata: MAJOR_BRAND : dash MINOR_VERSION : 0 COMPATIBLE_BRANDS: iso6mp41 encoder : Lavf57.71.100 Stream #1:0: Video: png, rgba(pc), 300x300, q=2-31, 90k tbr, 90k tbn, 90k tbc Metadata: comment : Cover (front) Stream mapping: Stream #0:0 (flac) -> concat:in0:a0 Stream #1:0 (flac) -> concat:in1:a0 concat -> Stream #0:0 (flac) Stream #1:1 -> #1:0 (copy) Press [q] to stop, [?] for help Output #0, flac, to 'topia.flac+topia_png.flac.flac': Metadata: MAJOR_BRAND : dash MINOR_VERSION : 0 COMPATIBLE_BRANDS: iso6mp41 encoder : Lavf57.71.100 Stream #0:0: Audio: flac, 44100 Hz, stereo, s16, 128 kb/s (default) Metadata: encoder : Lavc57.89.100 flac Thanks, Jeff _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
