Hi everyone :) I've noticed something odd, and I'm not sure if I've made an error or not: I've created an MKV file with ffmpeg, and when I read that MKV with the same ffmpeg build right afterwards, I get the following error/warning at the end:
[matroska,webm @ 0x3f0c600] Element at 0xb3f8d1b ending at 0xb3f92ea exceeds containing master element ending at 0xb3f8d15 MediaConch [1] says that .mkv is specification-valid. I've found a similar report on superuser.com [2], but not on Trac. I'd be very interested in finding out what this means or why it happens. Thanks you very much in advance, Peter B. ## Links: [1] https://mediaarea.net/MediaConch [2] https://superuser.com/questions/1425822/element-exceeds-containing-master-element-ffmpeg Commandline and console output here: ********************* $ ffmpeg-git -i 12bit.mkv -filter_complex "asetnsamples=48000" -f framemd5 12bit.mkv.framemd5 ********************* ffmpeg version N-93869-gae6486c Copyright (c) 2000-2019 the FFmpeg developers built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609 configuration: --prefix=/usr/local --enable-gpl --enable-nonfree --enable-version3 --enable-postproc --enable-ffplay --enable-swscale --enable-avfilter --enable-pthreads --enable-bzlib --enable-zlib --enable-decoder=png --enable-encoder=png --samples=../fate-suite --enable-libfreetype --enable-libopenjpeg --disable-decoder=jpeg2000 --enable-libvpx --enable-libvorbis --enable-libx264 --enable-libx265 libavutil 56. 27.100 / 56. 27.100 libavcodec 58. 52.101 / 58. 52.101 libavformat 58. 27.103 / 58. 27.103 libavdevice 58. 7.100 / 58. 7.100 libavfilter 7. 53.101 / 7. 53.101 libswscale 5. 4.101 / 5. 4.101 libswresample 3. 4.100 / 3. 4.100 libpostproc 55. 4.100 / 55. 4.100 Guessed Channel Layout for Input Stream #0.1 : stereo Input #0, matroska,webm, from '12bit.mkv': Metadata: COM.APPLE.QUICKTIME.MODEL: MacPro5,1 COM.APPLE.QUICKTIME.SOFTWARE: Mac OS X 10.9.5 (13F34) MAJOR_BRAND : qt MINOR_VERSION : 0 COMPATIBLE_BRANDS: qt COM.APPLE.QUICKTIME.CREATIONDATE: 2014-11-03T15:46:31+0100 COM.APPLE.QUICKTIME.MAKE: Apple ENCODER : Lavf58.27.103 Duration: 00:00:34.00, start: 0.000000, bitrate: 44403 kb/s Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p12le, 702x576, SAR 59:54 DAR 767:576, 25 fps, 25 tbr, 1k tbn, 1k tbc (default) Metadata: HANDLER_NAME : Core Media Video ENCODER : Lavc58.52.101 ffv1 DURATION : 00:00:34.000000000 Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: HANDLER_NAME : Core Media Audio ENCODER : Lavc58.52.101 pcm_s16le DURATION : 00:00:33.960000000 File '12bit.mkv.framemd5' already exists. Overwrite ? [y/N] y Stream mapping: Stream #0:1 (pcm_s16le) -> asetnsamples (graph 0) asetnsamples (graph 0) -> Stream #0:0 (pcm_s16le) Stream #0:0 -> #0:1 (ffv1 (native) -> rawvideo (native)) Press [q] to stop, [?] for help Output #0, framemd5, to '12bit.mkv.framemd5': Metadata: COM.APPLE.QUICKTIME.MODEL: MacPro5,1 COM.APPLE.QUICKTIME.SOFTWARE: Mac OS X 10.9.5 (13F34) MAJOR_BRAND : qt MINOR_VERSION : 0 COMPATIBLE_BRANDS: qt COM.APPLE.QUICKTIME.CREATIONDATE: 2014-11-03T15:46:31+0100 COM.APPLE.QUICKTIME.MAKE: Apple encoder : Lavf58.27.103 Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: encoder : Lavc58.52.101 pcm_s16le Stream #0:1: Video: rawvideo (Y3[10][12] / 0xC0A3359), yuv422p12le, 702x576 [SAR 59:54 DAR 767:576], q=2-31, 242611 kb/s, 25 fps, 25 tbn, 25 tbc (default) Metadata: HANDLER_NAME : Core Media Video DURATION : 00:00:34.000000000 encoder : Lavc58.52.101 rawvideo [matroska,webm @ 0x3f0c600] Element at 0xb3f8d1b ending at 0xb3f92ea exceeds containing master element ending at 0xb3f8d15 frame= 850 fps=112 q=-0.0 Lsize= 69kB time=00:00:34.04 bitrate= 16.7kbits/s speed=4.49x video:1342575kB audio:6375kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
