October 2011 - FFmpeg-trac - lists.ffmpeg.org

#232(undetermined:new): bogus error message with amr files: [amrnb @ 0x626e90] dtx mode not implemented.
by FFmpeg 11 Sep '13

11 Sep '13

#232: bogus error message with amr files: [amrnb @ 0x626e90] dtx mode not implemented. ------------------------------+-------------------------- Reporter: matteosistisette | Type: defect Status: new | Priority: critical Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | ------------------------------+-------------------------- I've just compiled the latest version of ffmpeg from the SVN on a CentOS machine and when I try to decode amr audio files I get this error (repeated a lot of times): {{{ [amrnb @ 0x626e90] dtx mode not implemented. Update your FFmpeg version to the newest one from SVN. If the problem still occurs, it means that your file has a feature which has not been implemented.If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list. }}} On another box, an Ubuntu one, I have installed the ffmpeg package from the repositories and it works fine with the same files. Also, on yet another CentOS box I am using a several-year-old version of ffmpeg that was compiled ages ago which can decode the same amr files just fine. So either the error message is completely wrong and the real problem with the files is different, or there has been some regression in that a feature that had already been implemented ages ago has been dropped. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/232> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#225(undetermined:new): Converting from YUVJ to YUV lose contrast
by FFmpeg 07 Sep '13

07 Sep '13

#225: Converting from YUVJ to YUV lose contrast -------------------------------+------------------------- Reporter: sghpunk | Type: defect Status: new | Priority: important Component: undetermined | Version: git-master Keywords: YUV/YUVJ contrast | Blocked By: Blocking: | Reproduced: 1 Analyzed: 0 | -------------------------------+------------------------- I am trying to transcode video from my Nicon D90 mjpeg to x264. And output video contrast is lower than input. I use ffmpeg-HEAD-27614b1 Command line: ffmpeg.exe -threads 2 -an -i input.mkv -f matroska -vcodec libx264 -profile main -preset fast -cqp 27 -y x264-low_contract_yuv.mkv > enc.log 2>&1 {{{ ffmpeg version UNKNOWN, Copyright (c) 2000-2011 the FFmpeg developers built on May 19 2011 17:41:01 with gcc 4.5.2 configuration: --prefix=/mingw --disable-static --enable-shared --enable-gpl --enable-version3 --disable-doc --enable-postproc --disable- network --enable-memalign-hack --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libmp3lame --enable-libspeex --enable-libvorbis --enable-libx264 --enable-pthreads --enable-frei0r --extra- cflags='-mthreads -mtune=nocona -march=nocona -msse3 -m80387 -mfpmath=387 -O2 -fgnu89-inline -Wno-error=missing-prototypes' --extra-ldflags='-Wl ,--enable-auto-image-base -Wl,--enable-auto-import' --extra-libs=-ldl --cpu=nocona libavutil 51. 2. 1 / 51. 2. 1 libavcodec 53. 5. 0 / 53. 5. 0 libavformat 53. 0. 3 / 53. 0. 3 libavdevice 53. 0. 0 / 53. 0. 0 libavfilter 2. 5. 0 / 2. 5. 0 libswscale 0. 14. 0 / 0. 14. 0 libpostproc 51. 2. 0 / 51. 2. 0 [matroska,webm @ 00b70280] Estimating duration from bitrate, this may be inaccurate Input #0, matroska,webm, from 'input.mkv': Metadata: MAKER : NIKON CORPORATION MODEL : NIKON D90 CREATION_TIME : 2011-05-05 07:47:28 ENCODER : Lavf53.0.3 Duration: 00:00:05.04, start: 0.000000, bitrate: N/A Stream #0.0: Video: mjpeg, yuvj422p, 1280x720, PAR 1:1 DAR 16:9, 24 fps, 24 tbr, 1k tbn, 24 tbc (default) Incompatible pixel format 'yuvj422p' for codec 'libx264', auto-selecting format 'yuv420p' [buffer @ 00b83e00] w:1280 h:720 pixfmt:yuvj422p tb:1/1000000 sar:1/1 [ffsink @ 003efee0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out' [scale @ 00b95920] w:1280 h:720 fmt:yuvj422p -> w:1280 h:720 fmt:yuv420p flags:0xa0000004 [libx264 @ 00b60540] using SAR=1/1 [libx264 @ 00b60540] using cpu capabilities: MMX2 SSE2 SSE3 Cache64 [libx264 @ 00b60540] profile Main, level 3.1 [libx264 @ 00b60540] 264 - core 114 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=6 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=1 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=27 ip_ratio=1.40 pb_ratio=1.30 aq=0 Output #0, matroska, to 'x264-low_contract_yuv.mkv': Metadata: MAKER : NIKON CORPORATION MODEL : NIKON D90 CREATION_TIME : 2011-05-05 07:47:28 encoder : Lavf53.0.3 Stream #0.0: Video: libx264, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 1k tbn, 24 tbc (default) Stream mapping: Stream #0.0 -> #0.0 Press [q] to stop, [?] for help frame= 10 fps= 0 q=27.0 size= 33kB time=10000000000.00 bitrate= 0.0kbits/s ...CUT... frame= 121 fps= 5 q=-1.0 Lsize= 864kB time=4.96 bitrate=1427.9kbits/s video:863kB audio:0kB global headers:0kB muxing overhead 0.173612% frame I:1 Avg QP:24.00 size: 33897 [libx264 @ 00b60540] frame P:41 Avg QP:27.00 size: 10846 [libx264 @ 00b60540] frame B:79 Avg QP:28.66 size: 5118 [libx264 @ 00b60540] consecutive B-frames: 6.6% 11.6% 22.3% 59.5% [libx264 @ 00b60540] mb I I16..4: 44.1% 0.0% 55.9% [libx264 @ 00b60540] mb P I16..4: 7.9% 0.0% 4.9% P16..4: 42.7% 10.5% 3.3% 0.0% 0.0% skip:30.7% [libx264 @ 00b60540] mb B I16..4: 3.9% 0.0% 0.6% B16..8: 30.6% 7.4% 0.3% direct: 8.4% skip:48.7% L0:41.1% L1:53.7% BI: 5.2% [libx264 @ 00b60540] coded y,uvDC,uvAC intra: 29.7% 47.0% 14.1% inter: 8.7% 11.9% 0.1% [libx264 @ 00b60540] i16 v,h,dc,p: 31% 31% 24% 14% [libx264 @ 00b60540] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 20% 20% 5% 7% 7% 6% 6% 3% [libx264 @ 00b60540] i8c dc,h,v,p: 63% 18% 16% 3% [libx264 @ 00b60540] Weighted P-Frames: Y:2.4% UV:2.4% [libx264 @ 00b60540] ref P L0: 75.4% 24.6% [libx264 @ 00b60540] ref B L0: 80.3% 19.7% [libx264 @ 00b60540] ref B L1: 94.1% 5.9% [libx264 @ 00b60540] kb/s:1401.04 }}} ffmpeg -v 9 -loglevel 99 -i input.mkv > v9.log 2>&1 {{{ ffmpeg version UNKNOWN, Copyright (c) 2000-2011 the FFmpeg developers built on May 19 2011 17:41:01 with gcc 4.5.2 configuration: --prefix=/mingw --disable-static --enable-shared --enable-gpl --enable-version3 --disable-doc --enable-postproc --disable- network --enable-memalign-hack --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libmp3lame --enable-libspeex --enable-libvorbis --enable-libx264 --enable-pthreads --enable-frei0r --extra- cflags='-mthreads -mtune=nocona -march=nocona -msse3 -m80387 -mfpmath=387 -O2 -fgnu89-inline -Wno-error=missing-prototypes' --extra-ldflags='-Wl ,--enable-auto-image-base -Wl,--enable-auto-import' --extra-libs=-ldl --cpu=nocona libavutil 51. 2. 1 / 51. 2. 1 libavcodec 53. 5. 0 / 53. 5. 0 libavformat 53. 0. 3 / 53. 0. 3 libavdevice 53. 0. 0 / 53. 0. 0 libavfilter 2. 5. 0 / 2. 5. 0 libswscale 0. 14. 0 / 0. 14. 0 libpostproc 51. 2. 0 / 51. 2. 0 [NULL @ 00b70280] Format matroska,webm probed with size=2048 and score=100 st:0 removing common factor 1000000 from timebase [mjpeg @ 00b7b700] buffer too small, expanding to 73330 bytes [mjpeg @ 00b7b700] marker=d8 avail_size_in_buf=73330 [mjpeg @ 00b7b700] marker parser used 0 bytes (0 bits) [mjpeg @ 00b7b700] marker=db avail_size_in_buf=73328 [mjpeg @ 00b7b700] index=0 [mjpeg @ 00b7b700] qscale[0]: 3 [mjpeg @ 00b7b700] index=1 [mjpeg @ 00b7b700] qscale[1]: 6 [mjpeg @ 00b7b700] marker parser used 132 bytes (1056 bits) [mjpeg @ 00b7b700] marker=c0 avail_size_in_buf=73194 [mjpeg @ 00b7b700] sof0: picture: 1280x720 [mjpeg @ 00b7b700] component 0 2:1 id: 0 quant:0 [mjpeg @ 00b7b700] component 1 1:1 id: 1 quant:1 [mjpeg @ 00b7b700] component 2 1:1 id: 2 quant:1 [mjpeg @ 00b7b700] pix fmt id 21111100 [mjpeg @ 00b7b700] marker parser used 17 bytes (136 bits) [mjpeg @ 00b7b700] marker=c4 avail_size_in_buf=73175 [mjpeg @ 00b7b700] class=0 index=0 nb_codes=12 [mjpeg @ 00b7b700] class=1 index=0 nb_codes=251 [mjpeg @ 00b7b700] class=0 index=1 nb_codes=12 [mjpeg @ 00b7b700] class=1 index=1 nb_codes=251 [mjpeg @ 00b7b700] marker parser used 418 bytes (3344 bits) [mjpeg @ 00b7b700] escaping removed 115 bytes [mjpeg @ 00b7b700] marker=da avail_size_in_buf=72755 [mjpeg @ 00b7b700] component: 0 [mjpeg @ 00b7b700] component: 1 [mjpeg @ 00b7b700] component: 2 [mjpeg @ 00b7b700] marker parser used 72639 bytes (581110 bits) [mjpeg @ 00b7b700] marker=d9 avail_size_in_buf=3 [mjpeg @ 00b7b700] mjpeg decode frame unused 3 bytes [matroska,webm @ 00b70280] All info found [matroska,webm @ 00b70280] Estimating duration from bitrate, this may be inaccurate Input #0, matroska,webm, from 'input.mkv': Metadata: MAKER : NIKON CORPORATION MODEL : NIKON D90 CREATION_TIME : 2011-05-05 07:47:28 ENCODER : Lavf53.0.3 Duration: 00:00:05.04, start: 0.000000, bitrate: N/A Stream #0.0, 1, 1/1000: Video: mjpeg, yuvj422p, 1280x720, 1/24, PAR 1:1 DAR 16:9, 24 fps, 24 tbr, 1k tbn, 24 tbc (default) At least one output file must be specified }}} Seems like contrast loosing when converting a pixel format from yuvj422p to yuv420p. I tryed to encode same video from mplayer yuv4mpeg raw file and in this case contrast on output video is the same. I cannot find mplayer ftp server to upload samples. Where can I upload it? -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/225> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#502(undetermined:new): Jumping frames when copying video of an h264 file
by FFmpeg 24 Aug '13

24 Aug '13

#502: Jumping frames when copying video of an h264 file -------------------------------------+------------------------------------- Reporter: Alex__ | Type: defect Status: new | Priority: normal Component: | Version: git- undetermined | master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Description: Jumping frames when copying video of an h264 file Version: latest trunk URL: see below Steps that will reproduce the problem? ffmpeg -i sample.avi -vcodec copy sample-copy.m4v What is the expected result? Converted file w/o any issues. What happens instead? The frames "jump" in the converted file when playing it with QuickTimePlayer X 10.1 (more) or VLC (less). Possible workaround: ffmpeg -i sample.avi sample-copy.m4v Any additional information: * Example: see below * Command: {{{ $ ffmpeg -y -i sample.avi -vcodec copy sample-copy.m4v ffmpeg version N-30168-g6d789f5, Copyright (c) 2000-2011 the FFmpeg developers built on Sep 23 2011 09:20:16 with clang 2.1 (tags/Apple/clang-163.7.1) configuration: --enable-zlib --disable-debug --enable-libfaac --enable- libx264 --enable-gpl --enable-nonfree --enable-libmp3lame --enable- libtheora --enable-libvorbis --enable-libvpx --enable-libxvid --cc=clang libavutil 51. 17. 0 / 51. 17. 0 libavcodec 53. 17. 0 / 53. 17. 0 libavformat 53. 13. 0 / 53. 13. 0 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 43. 3 / 2. 43. 3 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 Input #0, avi, from 'sample.avi': Metadata: encoder : transcode-1.0.7rc1 Duration: 02:02:15.00, start: 0.000000, bitrate: 0 kb/s Stream #0.0: Video: h264 (Main) (H264 / 0x34363248), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 25 fps, 25 tbr, 25 tbn, 50 tbc Stream #0.1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16, 192 kb/s Output #0, ipod, to 'sample-copy.m4v': Metadata: encoder : Lavf53.13.0 Stream #0.0: Video: h264 (avc1 / 0x31637661), yuv420p, 720x576 [SAR 16:15 DAR 4:3], q=2-31, 25 tbn, 25 tbc Stream #0.1: Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 128 kb/s Stream mapping: Stream #0.0 -> #0.0 (copy) Stream #0.1 -> #0.1 (mp3 -> libfaac) Press [q] to stop, [?] for help [ipod @ 0x7ff8f32d1c00] pts has no value Last message repeated 64 times frame= 65 fps= 0 q=-1.0 Lsize= 479kB time=00:00:02.60 bitrate=1509.5kbits/s video:436kB audio:40kB global headers:0kB muxing overhead 0.564932% }}} -- Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/502> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#538(avcodec:new): J2K files with 444p are incorrectly written
by FFmpeg 24 Aug '13

24 Aug '13

#538: J2K files with 444p are incorrectly written --------------------------------------+--------------------------------- Reporter: cehoyos | Owner: Type: defect | Status: new Priority: normal | Component: avcodec Version: git-master | Keywords: Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 --------------------------------------+--------------------------------- Files written with yuv444p cannot be read. {{{ ./ffmpeg -i tests/lena.pnm -pix_fmt yuv444p -strict experimental out.jp2 ffmpeg version N-33430-gcb50ada, Copyright (c) 2000-2011 the FFmpeg developers built on Oct 9 2011 20:28:29 with gcc 4.5.3 configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc libavutil 51. 20. 1 / 51. 20. 1 libavcodec 53. 19. 1 / 53. 19. 1 libavformat 53. 14. 0 / 53. 14. 0 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 43. 6 / 2. 43. 6 libswscale 2. 1. 0 / 2. 1. 0 Input #0, image2, from 'tests/lena.pnm': Duration: 00:00:00.04, start: 0.000000, bitrate: N/A Stream #0:0: Video: ppm, rgb24, 256x256, 25 tbr, 25 tbn, 25 tbc [buffer @ 0x12d9e20] w:256 h:256 pixfmt:rgb24 tb:1/1000000 sar:0/1 sws_param: [buffersink @ 0x12cf7e0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out' [scale @ 0x12d0000] w:256 h:256 fmt:rgb24 -> w:256 h:256 fmt:yuv444p flags:0x4 Output #0, image2, to 'out.jp2': Metadata: encoder : Lavf53.14.0 Stream #0:0: Video: j2k, yuv444p, 256x256, q=2-31, 200 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0.0 -> #0.0 (ppm -> j2k) Press [q] to stop, [?] for help frame= 1 fps= 0 q=0.0 Lsize= -0kB time=00:00:00.04 bitrate= -4.4kbits/s video:89kB audio:0kB global headers:0kB muxing overhead -100.024241% }}} {{{ /ffmpeg -i out.jp2 ffmpeg version N-33430-gcb50ada, Copyright (c) 2000-2011 the FFmpeg developers built on Oct 9 2011 20:28:29 with gcc 4.5.3 configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc libavutil 51. 20. 1 / 51. 20. 1 libavcodec 53. 19. 1 / 53. 19. 1 libavformat 53. 14. 0 / 53. 14. 0 libavdevice 53. 4. 0 / 53. 4. 0 libavfilter 2. 43. 6 / 2. 43. 6 libswscale 2. 1. 0 / 2. 1. 0 Input #0, image2, from 'out.jp2': Duration: 00:00:00.04, start: 0.000000, bitrate: N/A Stream #0:0: Video: j2k, rgb24, 256x256, 25 tbr, 25 tbn, 25 tbc At least one output file must be specified }}} -- Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/538> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#162(undetermined:new): Avid AVI Codec - wrong resolution reported by FFmpeg
by FFmpeg 24 Aug '13

24 Aug '13

#162: Avid AVI Codec - wrong resolution reported by FFmpeg --------------------------+-------------------------- Reporter: ami_stuff | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- issue 1494 https://roundup.libav.org/file579/avid.avi {{{ Author: ami_stuff Date: 2009-10-19.18:53:59 Attached file is encoded with "Avid AVI Codec" and have 720x576 resolution, but FFmpeg reports 720x592 and adds black bar on the top of the video. -------- C:\>ffmpeg -i avid.avi FFmpeg version SVN-r20231, Copyright (c) 2000-2009 Fabrice Bellard, et al. built on Oct 14 2009 04:04:42 with gcc 4.2.4 configuration: --enable-memalign-hack --prefix=/mingw --cross- prefix=i686-ming w32- --cc=ccache-i686-mingw32-gcc --target-os=mingw32 --arch=i686 --cpu=i686 --e nable-avisynth --enable-gpl --enable-version3 --enable-zlib --enable-bzlib --ena ble-libgsm --enable-libfaad --enable-pthreads --enable-libvorbis --enable- libthe ora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg --enable- libxvid --enable-libschroedinger --enable-libx264 --enable-libopencore_amrwb --enable-li bopencore_amrnb libavutil 50. 3. 0 / 50. 3. 0 libavcodec 52.37. 0 / 52.37. 0 libavformat 52.39. 1 / 52.39. 1 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0. 7. 1 / 0. 7. 1 [mjpeg @ 0x1a68250]Found 1 unreleased buffers! Input #0, avi, from 'avid.avi': Duration: 00:00:01.79, start: 0.000000, bitrate: 4289 kb/s Stream #0.0: Video: mjpeg, yuvj422p, 720x592, 23.97 tbr, 23.97 tbn, 23.97 tb c Stream #0.1: Audio: mp3, 44100 Hz, 2 channels, s16, 128 kb/s At least one output file must be specified }}} {{{ Author: cehoyos Date: 2009-10-19.23:46:14 Reproducible with mplayer avid.avi -vc avid }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/162> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#317(undetermined:new): mpeg4 (geov & geox fouccs) needs to be flipped
by FFmpeg 24 Aug '13

24 Aug '13

#317: mpeg4 (geov & geox fouccs) needs to be flipped --------------------------+-------------------------- Reporter: ami_stuff | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | --------------------------+-------------------------- http://samples.mplayerhq.hu/V-codecs/geov.avi https://trac.videolan.org/vlc/ticket/3615 {{{ C:\>ffmpeg -i geov.avi ffmpeg version N-30956-g81ef892, Copyright (c) 2000-2011 the FFmpeg developers built on Jun 22 2011 17:34:15 with gcc 4.5.3 configuration: --enable-gpl --enable-version3 --enable-memalign-hack --enable- runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libo pencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable- libgsm -- enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable- libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enabl e-libx264 --enable-libxavs --enable-libxvid --enable-zlib libavutil 51. 9. 1 / 51. 9. 1 libavcodec 53. 7. 0 / 53. 7. 0 libavformat 53. 4. 0 / 53. 4. 0 libavdevice 53. 1. 1 / 53. 1. 1 libavfilter 2. 23. 0 / 2. 23. 0 libswscale 2. 0. 0 / 2. 0. 0 libpostproc 51. 2. 0 / 51. 2. 0 [avi @ 01E5A600] Something went wrong during header parsing, I will ignore it an d try to continue anyway. [mpeg4 @ 01E5AB00] hmm, seems the headers are not complete, trying to guess time _increment_bits [mpeg4 @ 01E5AB00] my guess is 5 bits ;) [avi @ 01E5A600] Could not find codec parameters (Subtitle: [0][0][0][0] / 0x000 0) Input #0, avi, from 'geov.avi': Duration: 00:00:03.03, start: 0.000000, bitrate: 1374 kb/s Stream #0.0: Video: mpeg4, yuv420p, 720x240, 30 fps, 30 tbr, 30 tbn, 30 tbc Stream #0.1: Subtitle: [0][0][0][0] / 0x0000 At least one output file must be specified }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/317> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#259(undetermined:new): framerate detection does not work properly.
by FFmpeg 24 Aug '13

24 Aug '13

#259: framerate detection does not work properly. ---------------------------------------+-------------------------- Reporter: mbosner | Type: defect Status: new | Priority: normal Component: undetermined | Version: unspecified Keywords: false framerate detection | Blocked By: Blocking: | Reproduced: 0 Analyzed: 0 | ---------------------------------------+-------------------------- Frameratedetection does not work well on some of my files: ffmpeg -i wrong_framerate.mkv: [matroska,webm @ 0x276e420] Estimating duration from bitrate, this may be inaccurate Input #0, matroska,webm, from 'wrong_framerate.mkv': Duration: 01:47:42.18, start: 0.000000, bitrate: 1984 kb/s Stream #0.0: Video: vc1 (Advanced), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 1k tbn, 29.97 tbc (default) Stream #0.1: Audio: eac3, 48000 Hz, 5.1, s16, 1536 kb/s (default) Stream #0.2: Audio: eac3, 48000 Hz, 5.1, s16, 448 kb/s At least one output file must be specified ffmpeg version: git-N-30444-geb5a3ab correct framerate: 23.98/24 fps same false framerate detection with latest VLC xbmc does play it with the correct framerate and does play it without problems. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/259> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

1 8

#449(undetermined:new): ALSA, as a first input, together with -isync gives error "[alsa @ 0x97ddae0] cannot set parameters (Connection timed out)"
by FFmpeg 21 Aug '13

21 Aug '13

#449: ALSA, as a first input, together with -isync gives error "[alsa @ 0x97ddae0] cannot set parameters (Connection timed out)" -------------------------------------+------------------------------------- Reporter: burek | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- This works: {{{ # ffmpeg -isync -f video4linux2 -r 15 -s qqvga -i /dev/video0 -f alsa -ac 1 -i hw:1 -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 ffmpeg version N-32427-g22bf6f7, Copyright (c) 2000-2011 the FFmpeg developers built on Sep 10 2011 06:14:04 with gcc 4.6.1 configuration: --enable-static --enable-shared --enable-gpl --enable- nonfree --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-libaacplus --extra-cflags=-fPIC WARNING: library configuration mismatch postproc configuration: --extra-version=4:0.6.2-5 --arch=i386 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libsp eex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable- vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --e nable-swscale --enable-x11grab --enable-libfaad --enable-libdirac --enable-libfaad --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cp u=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay libavutil 51. 16. 0 / 51. 16. 0 libavcodec 53. 13. 0 / 53. 13. 0 libavformat 53. 12. 0 / 53. 12. 0 libavdevice 53. 3. 0 / 53. 3. 0 libavfilter 2. 39. 0 / 2. 39. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 [video4linux2 @ 0x998fb00] Estimating duration from bitrate, this may be inaccurate Input #0, video4linux2, from '/dev/video0': Duration: N/A, start: 7618.708052, bitrate: 4608 kb/s Stream #0.0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 160x120, 4608 kb/s, 15 tbr, 1000k tbn, 15 tbc [alsa @ 0x99906e0] Estimating duration from bitrate, this may be inaccurate Input #1, alsa, from 'hw:1': Duration: N/A, start: 1315632754.420454, bitrate: N/A Stream #1.0: Audio: pcm_s16le, 16000 Hz, 1 channels, s16, 256 kb/s Incompatible pixel format 'yuyv422' for codec 'libx264', auto-selecting format 'yuv420p' [buffer @ 0x999ab20] w:160 h:120 pixfmt:yuyv422 tb:1/1000000 sar:0/1 sws_param: [buffersink @ 0x999abc0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out' [scale @ 0x99961e0] w:160 h:120 fmt:yuyv422 -> w:160 h:120 fmt:yuv420p flags:0x4 [libx264 @ 0x998b7c0] using cpu capabilities: MMX2 SSE2 Cache64 [libx264 @ 0x998b7c0] profile Constrained Baseline, level 1.0 [mpegts @ 0x998b040] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts Output #0, mpegts, to 'udp://192.168.25.101:10001': Metadata: encoder : Lavf53.12.0 Stream #0.0: Video: h264, yuv420p, 160x120, q=-1--1, 90k tbn, 15 tbc Stream #0.1: Audio: aac, 44100 Hz, 1 channels, s16, 96 kb/s Stream mapping: Stream #0.0 -> #0.0 (rawvideo -> libx264) Stream #1.0 -> #0.1 (pcm_s16le -> aac) Press [q] to stop, [?] for help frame= 288 fps= 17 q=24.0 Lsize= 604kB time=00:00:17.20 bitrate= 287.6kbits/s dup=30 drop=0 video:324kB audio:188kB global headers:0kB muxing overhead 17.897995% frame I:20 Avg QP:15.81 size: 5393 [libx264 @ 0x998b7c0] frame P:268 Avg QP:18.68 size: 835 [libx264 @ 0x998b7c0] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 0x998b7c0] mb P I16..4: 0.5% 0.0% 0.0% P16..4: 60.0% 0.0% 0.0% 0.0% 0.0% skip:39.5% [libx264 @ 0x998b7c0] coded y,uvDC,uvAC intra: 90.5% 95.0% 86.3% inter: 26.5% 48.7% 14.6% [libx264 @ 0x998b7c0] i16 v,h,dc,p: 40% 25% 20% 15% [libx264 @ 0x998b7c0] i8c dc,h,v,p: 49% 7% 30% 13% [libx264 @ 0x998b7c0] kb/s:138.22 }}} This doesn't work (just switched places for audio and video input): {{{ # ffmpeg -isync -f alsa -ac 1 -i hw:1 -f video4linux2 -r 15 -s qqvga -i /dev/video0 -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 ffmpeg version N-32427-g22bf6f7, Copyright (c) 2000-2011 the FFmpeg developers built on Sep 10 2011 06:14:04 with gcc 4.6.1 configuration: --enable-static --enable-shared --enable-gpl --enable- nonfree --enable-postproc --enable-runtime-cpudetect --enable-libx264 --enable-libaacplus --extra-cflags=-fPIC WARNING: library configuration mismatch postproc configuration: --extra-version=4:0.6.2-5 --arch=i386 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable- vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libfaad --enable-libdirac --enable-libfaad --enable-libmp3lame --enable-librtmp --enable-libx264 --enable-libxvid --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable- shared --disable-static --disable-ffmpeg --disable-ffplay libavutil 51. 16. 0 / 51. 16. 0 libavcodec 53. 13. 0 / 53. 13. 0 libavformat 53. 12. 0 / 53. 12. 0 libavdevice 53. 3. 0 / 53. 3. 0 libavfilter 2. 39. 0 / 2. 39. 0 libswscale 2. 1. 0 / 2. 1. 0 libpostproc 51. 2. 0 / 51. 2. 0 [alsa @ 0x8303ae0] cannot set parameters (Connection timed out) hw:1: Input/output error }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/449> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#450(documentation:new): Specify the position of -isync more precisely
by FFmpeg 21 Aug '13

21 Aug '13

#450: Specify the position of -isync more precisely -------------------------------------+------------------------------------- Reporter: burek | Owner: stefano Type: | Status: new enhancement | Component: Priority: normal | documentation Version: | Keywords: unspecified | Blocking: Blocked By: | Analyzed by developer: 0 Reproduced by developer: 0 | -------------------------------------+------------------------------------- I've figured that the -isync option does not produce the same effect when placed in front of inputs, between the inputs and after the inputs. I just think it would be a good idea to put a little explanation in the documentation about the proper usage of that option. For example, these 2 examples produce different results: ffmpeg -f alsa -ac 1 -i hw:1 -isync -f video4linux2 -r 15 -s qqvga -i /dev/video0 -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 ffmpeg -f alsa -ac 1 -i hw:1 -f video4linux2 -r 15 -s qqvga -i /dev/video0 -isync -vcodec libx264 -preset ultrafast -g 15 -crf 20 -acodec aac -strict experimental -ar 44100 -ab 96k -ac 1 -f mpegts udp://192.168.25.101:10001 (the second example has -isync moved after the 2nd input) -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/450> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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#500(undetermined:new): Seemingly inconsistent AVIndexEntry timestamps for movs starting with B-Frames
by FFmpeg 09 Aug '13

09 Aug '13

#500: Seemingly inconsistent AVIndexEntry timestamps for movs starting with B-Frames -------------------------------------+------------------------------------- Reporter: rmk | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- A while ago I asked on the ml regarding the semantics of the undocumented fields of AVIndexEntry defined in avformat.h (http://www.mail-archive.com /libav-user(a)ffmpeg.org/msg00535.html) I didn't get an answer so I still do not know what the correct behaviour is but I have observed things that at least appear inconsistent. I have two examples of MPEG-2 files in a mov container which both start with the sequence BBI (presentation order). One is the file that is attached to issue #479 that has the following properties: Mesht0456_01_cut.MP4 AVStream.time_base = 1/30000 AVStream.start_time = 3003 (0.1001s) start frame order = BBI PTS of first I-Frame = 3003 PTS of first frame (B) = 0 first I-frame AVIndexEntry.timestamp = 0 Then another one (uploaded to http://www.datafilehost.com/download- 27d635cc.html since I do not have a smaller sample): xdcam_hd422_1080p24.mov AVStream.time_base = 1/2400 AVStream.start_time = 200 (0.08333333333333334s) start frame order = BBI PTS of first I-Frame = 200 PTS of first frame (B) = 0 first I-frame AVIndexEntry.timestamp = -100 (-0.416666666666667s) The first sample looks like AVIndexEntry.timestamp is set with the stream's start_time subtracted from the respective frame's PTS. This also works for all following index entries. However, this does not work for the second example. I have no idea if this is related to issue #479. All I'm trying to do is use the index (if it is there) to find out the PTSs of keyframes and I thought that was OK to do via AVIndexEntry. So either I am abusing the API and it would help to document this so others don't run into this or one of the files is broken or it is indeed a bug. In any case, just a short, unambiguous sentence of documentation for each AVIndexEntry field by someone who knows the semantics would help libav API users a great deal to use this and to help improve the seeking functionality of ffmpeg be it only by providing bug reports with samples. One more observation is that in both cases the timestamp of the index entry corresponding to the first I frame matches the DTS of the packet containing the I-Frame. Is that the semantics of AVIndexEntry.timestamp? In that case how would one derive the PTS of the I-frame from the index entry? Any insight/help would be greatly appreciated. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/500> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker

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