December 2014 - FFmpeg-trac - lists.ffmpeg.org

#4078(ffmpeg:new): Specify audio bitrate per-channel
by FFmpeg 15 Apr '24

15 Apr '24

#4078: Specify audio bitrate per-channel ----------------------------------+--------------------------------------- Reporter: Haravikk | Type: enhancement Status: new | Priority: normal Component: ffmpeg | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+--------------------------------------- Fairly self-explanatory, but currently we can specify audio bit-rate for the entire stream, but this requires us to calculate the total bitrate from the number of input channels ourselves. This is fine for single files, but for batch-encoding a mixture of stereo and surround-sound content it's not as ideal, or even for encoding a file that contains multiple audio-streams. To accommodate these use-cases I'd like to request an alternative syntax for specifying audio channels with a per-channel bit-rate so that I can instead just specify say 64k per channel for AAC, with ffmpeg automatically using a total of 128k for stereo or 384k for 5.1 etc. I'm not sure what the best way to do this would be. I suppose one option would be to have a new parameter -bc for "bits per channel", so I could specify something like ffmpeg -i "$INFILE" -acodec aac -bc:a 64k "$OUTFILE" An alternative would be allowing some kind of suffix to the -b option such as: ffmpeg -i "$INFILE" -acodec aac -b:a 64k/c "$OUTFILE" -- Ticket URL: <https://trac.ffmpeg.org/ticket/4078> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#4209(undetermined:new): GPS coordinates location and other iOS metadata in MOV are not copied to output MP4
by FFmpeg 10 Apr '24

10 Apr '24

#4209: GPS coordinates location and other iOS metadata in MOV are not copied to output MP4 -------------------------------------+------------------------------------- Reporter: elmimmo | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Certain metadata in MOV files recorded with iOS devices, such as GPS location, is lost when converting to MP4. **ffmpeg** does state in its log that the output file will contain such metadata, but such is not the case as identified with **ffprobe** and **exiftool**. Some of the metadata present in the input MOV that is missing in the output MP4, according to **ffprobe**: - make ("Apple") - encoder - location (GPS latitude/longitude/altitude coordinates) - model (the iPhone/iPad/iPod model) **exiftool** identifies some more: - camera identifier ("Back" or "Front") - Software Version (iOS version) This happens irrespective of input video/audio being transcoded or just repackaged. How to reproduce: {{{ % ffmpeg -i INPUT.mov -map_metadata 0 -c copy OUTPUT.mp4 ffmpeg version 2.5.2 Copyright (c) 2000-2014 the FFmpeg developers built on Dec 26 2014 21:55:58 with Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn) configuration: --prefix=/usr/local/Cellar/ffmpeg/2.5.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable- libx264 --enable-libmp3lame --enable-libxvid --enable-libvo-aacenc --enable-vda libavutil 54. 15.100 / 54. 15.100 libavcodec 56. 13.100 / 56. 13.100 libavformat 56. 15.102 / 56. 15.102 libavdevice 56. 3.100 / 56. 3.100 libavfilter 5. 2.103 / 5. 2.103 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'INPUT.mov': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2014-12-26 20:54:22 model : iPhone 4 model-spa : iPhone 4 encoder : 7.1.1 encoder-spa : 7.1.1 date : 2014-12-26T21:54:22+0100 date-spa : 2014-12-26T21:54:22+0100 location : +41.4082+002.1852+027.119/ location-spa : +41.4082+002.1852+027.119/ make : Apple make-spa : Apple Duration: 00:00:01.07, start: 0.000000, bitrate: 11694 kb/s Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720, 11890 kb/s, 24 fps, 24 tbr, 600 tbn, 1200 tbc (default) Metadata: rotate : 90 creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler encoder : H.264 Side data: displaymatrix: rotation of -90.00 degrees Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 kb/s (default) Metadata: creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler Output #0, mp4, to 'OUTPUT.mp4': Metadata: major_brand : qt minor_version : 0 compatible_brands: qt creation_time : 2014-12-26 20:54:22 model : iPhone 4 model-spa : iPhone 4 make-spa : Apple encoder : Lavf56.15.102 date : 2014-12-26T21:54:22+0100 date-spa : 2014-12-26T21:54:22+0100 location : +41.4082+002.1852+027.119/ location-spa : +41.4082+002.1852+027.119/ make : Apple Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 11890 kb/s, 24 fps, 19200 tbn, 600 tbc (default) Metadata: rotate : 90 creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler encoder : H.264 Side data: displaymatrix: rotation of -90.00 degrees Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, mono, 62 kb/s (default) Metadata: creation_time : 2014-12-26 20:54:22 handler_name : Core Media Data Handler Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 25 fps=0.0 q=-1.0 Lsize= 1522kB time=00:00:01.06 bitrate=11673.4kbits/s video:1512kB audio:8kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.123020% }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/4209> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#3798(ffprobe:new): ffprobe indentifies 16:9 display aspect ratio as 0:1
by FFmpeg 24 Jan '24

24 Jan '24

#3798: ffprobe indentifies 16:9 display aspect ratio as 0:1 -------------------------------------+------------------------------------- Reporter: miguelapg | Type: defect Status: new | Priority: important Component: ffprobe | Version: git- Keywords: aspect | master ratio | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: ffprobe indentifies wrongly 16:9 display aspect ratio as 0:1 in this movie "pompeii-tlr2_h1080p.mov". (Uploaded to "incoming" folder in your FTP server: upload.ffmpeg.org) How to reproduce: {{{ ffprobe -v quiet -print_format json -show_format -show_streams "pompeii- tlr2_h1080p.mov" >"myResults.json" ffprobe version Latest version: git-a613257 (2014-07-23) 64-Bit ffprobe output in Json format is attached to this ticket. Called: "myResults.json". }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/3798> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#4131(avfilter:new): aresample=async=1000:first_pts=0 produced out-of-sync audio with Non-monotonous DTS in output stream warnings
by FFmpeg 18 Dec '23

18 Dec '23

#4131: aresample=async=1000:first_pts=0 produced out-of-sync audio with Non- monotonous DTS in output stream warnings ------------------------------------+-------------------------------------- Reporter: mikaraento | Type: defect Status: new | Priority: normal Component: avfilter | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ------------------------------------+-------------------------------------- Summary of the bug: How to reproduce: {{{ $ FFREPORT=1 ffmpeg -y -i broken_audio.ts -af aresample=async=1000:first_pts=0 broken_audio.mp4 ffmpeg version N-67656-g9a69cd6 Copyright (c) 2000-2014 the FFmpeg developers built on Nov 15 2014 14:05:16 with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn) }}} attaching log from FFREPORT and the input file -- Ticket URL: <https://trac.ffmpeg.org/ticket/4131> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#4168(ffmpeg:new): defect : mpeg2 interlaced yuv420 chroma incorrectly decoded
by FFmpeg 21 Oct '23

21 Oct '23

#4168: defect : mpeg2 interlaced yuv420 chroma incorrectly decoded -------------------------------------+------------------------------------- Reporter: clam | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: git- Keywords: mpeg2 vob | master chroma interlaced | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: When using an interlaced mpeg2 source, the yuv420 chroma is interpreted as progressive chroma instead of interlaced chroma. This bug is present when decoding the following mpeg2 formats : VOB, MPEG- PS, MPEG-TS. avcodec seems to decode interlaced videos using yuv420p pixel format, but it should instead default to any 422 format in this case (or a yuv420i format, but it looks to be unavailable in ffmpeg). In addition, -pxl_fmt seems to be ineffective to force the input decode (ffmpeg fires an error : 'Option pixel_format not found'). Looks like it's unsupported by the mpeg2video decoder. => the bottomline is that yuv420 chroma coding is different in progressive and interlaced. In the latter pixel format, odd and even lines don't share the same chroma data. This bug generates such chroma artifacts that the quality of the video is greatly degraded when it needs to be deinterlaced/scaled/transcoded after the ffmpeg conversion. How to reproduce: To be able to easily check for the bug, the odd and even fields should have a heavy chroma variation but a light luma variation (ie same luminosity but different colors). Blue and Red are the best candidates. The bug is not dependant of the output pixel_format. Here I output a prores422 file but it's the same with a rawvideo avi. NOTE : the mpeg2 files I used were correctly detected as interlaced by any other video converter/analyzer. {{{ D:\>d:\ffmpeg\bin\ffmpeg -f mpeg -i bug.vob -c:v prores test.mov ffmpeg version N-68289-g208c03a Copyright (c) 2000-2014 the FFmpeg developers built on Dec 7 2014 22:13:45 with gcc 4.9.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable- libcaca -- enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib modplug --enable-libmp3lame --enable-libopencore-amrnb --enable- libopencore-amrw b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable- libschroedinge r --enable-libsoxr --enable-libspeex --enable-libtheora --enable- libtwolame --en able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable- libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable- libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib libavutil 54. 15.100 / 54. 15.100 libavcodec 56. 14.100 / 56. 14.100 libavformat 56. 15.102 / 56. 15.102 libavdevice 56. 3.100 / 56. 3.100 libavfilter 5. 2.103 / 5. 2.103 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 Guessed Channel Layout for Input Stream #0.2 : stereo Input #0, mpeg, from 'bug.vob': Duration: 00:04:11.26, start: 275.223311, bitrate: 9343 kb/s Stream #0:0[0x1bf]: Data: dvd_nav_packet Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, smpte170m), 720x48 0 [SAR 32:27 DAR 16:9], max. 9800 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:2[0xa0]: Audio: pcm_dvd, 48000 Hz, 2 channels, s16, 1536 kb/s [prores @ 0000000004422980] encoding with ProRes standard (apcn) profile [prores @ 0000000004425160] encoding with ProRes standard (apcn) profile [prores @ 0000000004427c00] encoding with ProRes standard (apcn) profile [prores @ 0000000004428660] encoding with ProRes standard (apcn) profile [prores @ 00000000043d9cc0] encoding with ProRes standard (apcn) profile Output #0, mov, to 'test.mov': Metadata: encoder : Lavf56.15.102 Stream #0:0: Video: prores (apcn) (apcn / 0x6E637061), yuv422p10le, 720x480 [SAR 32:27 DAR 16:9], q=2-31, 200 kb/s, 29.97 fps, 30k tbn, 29.97 tbc Metadata: encoder : Lavc56.14.100 prores Stream #0:1: Audio: aac (libvo_aacenc) (mp4a / 0x6134706D), 48000 Hz, stereo , s16, 128 kb/s Metadata: encoder : Lavc56.14.100 libvo_aacenc Stream mapping: Stream #0:1 -> #0:0 (mpeg2video (native) -> prores (native)) Stream #0:2 -> #0:1 (pcm_dvd (native) -> aac (libvo_aacenc)) Press [q] to stop, [?] for help frame= 97 fps=0.0 q=0.0 size= 13010kB time=00:00:03.10 bitrate=34345.1kbits/ frame= 183 fps=182 q=0.0 size= 26269kB time=00:00:05.97 bitrate=36030.6kbits/ frame= 271 fps=180 q=0.0 size= 39098kB time=00:00:08.90 bitrate=35951.6kbits/ frame= 365 fps=181 q=0.0 size= 53793kB time=00:00:12.04 bitrate=36584.3kbits/ frame= 457 fps=182 q=0.0 size= 67180kB time=00:00:15.11 bitrate=36410.0kbits/ frame= 550 fps=182 q=0.0 size= 81079kB time=00:00:18.21 bitrate=36458.0kbits/ frame= 638 fps=181 q=0.0 size= 94735kB time=00:00:21.15 bitrate=36685.7kbits/ frame= 727 fps=181 q=0.0 size= 107704kB time=00:00:24.12 bitrate=36573.9kbits/ frame= 816 fps=180 q=0.0 size= 120764kB time=00:00:27.09 bitrate=36514.0kbits/ frame= 902 fps=179 q=0.0 size= 133535kB time=00:00:29.96 bitrate=36508.6kbits/ frame= 1000 fps=181 q=0.0 size= 148139kB time=00:00:33.23 bitrate=36516.4kbits/ frame= 1091 fps=181 q=0.0 size= 161676kB time=00:00:36.26 bitrate=36516.9kbits/ frame= 1185 fps=181 q=0.0 size= 175265kB time=00:00:39.40 bitrate=36435.3kbits/ frame= 1277 fps=181 q=0.0 size= 189336kB time=00:00:42.47 bitrate=36516.0kbits/ frame= 1360 fps=180 q=0.0 size= 201932kB time=00:00:45.24 bitrate=36561.4kbits/ frame= 1451 fps=180 q=0.0 size= 215693kB time=00:00:48.28 bitrate=36597.0kbits/ frame= 1524 fps=178 q=0.0 size= 227089kB time=00:00:50.71 bitrate=36680.1kbits/ frame= 1609 fps=178 q=0.0 size= 239458kB time=00:00:53.55 bitrate=36629.5kbits/ frame= 1701 fps=178 q=0.0 size= 253563kB time=00:00:56.62 bitrate=36684.4kbits/ frame= 1797 fps=179 q=0.0 size= 267792kB time=00:00:59.82 bitrate=36668.6kbits/ frame= 1894 fps=179 q=0.0 size= 283124kB time=00:01:03.06 bitrate=36778.3kbits/ frame= 1974 fps=178 q=0.0 size= 295109kB time=00:01:05.73 bitrate=36778.5kbits/ frame= 2064 fps=179 q=0.0 size= 307805kB time=00:01:08.73 bitrate=36684.8kbits/ frame= 2159 fps=179 q=0.0 size= 321994kB time=00:01:11.90 bitrate=36684.1kbits/ frame= 2256 fps=180 q=0.0 size= 336902kB time=00:01:15.14 bitrate=36729.2kbits/ frame= 2340 fps=179 q=0.0 size= 349615kB time=00:01:17.94 bitrate=36744.7kbits/ frame= 2431 fps=179 q=0.0 size= 363557kB time=00:01:20.98 bitrate=36777.3kbits/ frame= 2525 fps=179 q=0.0 size= 377814kB time=00:01:24.11 bitrate=36794.4kbits/ frame= 2613 fps=179 q=0.0 size= 390721kB time=00:01:27.05 bitrate=36768.0kbits/ frame= 2703 fps=179 q=0.0 size= 403783kB time=00:01:30.05 bitrate=36730.1kbits/ frame= 2796 fps=179 q=0.0 size= 417759kB time=00:01:33.15 bitrate=36735.7kbits/ frame= 2889 fps=180 q=0.0 size= 431245kB time=00:01:36.26 bitrate=36699.1kbits/ frame= 2985 fps=180 q=0.0 size= 446408kB time=00:01:39.46 bitrate=36766.0kbits/ frame= 3074 fps=180 q=0.0 size= 459475kB time=00:01:42.43 bitrate=36745.2kbits/ frame= 3166 fps=180 q=0.0 size= 473415kB time=00:01:45.50 bitrate=36758.4kbits/ frame= 3253 fps=180 q=0.0 size= 486306kB time=00:01:48.40 bitrate=36748.3kbits/ frame= 3358 fps=181 q=0.0 size= 501818kB time=00:01:51.91 bitrate=36733.3kbits/ frame= 3455 fps=181 q=0.0 size= 516493kB time=00:01:55.14 bitrate=36744.9kbits/ frame= 3549 fps=181 q=0.0 size= 530794kB time=00:01:58.28 bitrate=36761.0kbits/ frame= 3626 fps=180 q=0.0 size= 542060kB time=00:02:00.85 bitrate=36743.1kbits/ frame= 3704 fps=180 q=0.0 size= 554200kB time=00:02:03.45 bitrate=36774.1kbits/ frame= 3799 fps=180 q=0.0 size= 568720kB time=00:02:06.62 bitrate=36792.9kbits/ frame= 3891 fps=180 q=0.0 size= 582481kB time=00:02:09.69 bitrate=36791.2kbits/ frame= 3987 fps=180 q=0.0 size= 597045kB time=00:02:12.89 bitrate=36802.2kbits/ frame= 4080 fps=180 q=0.0 size= 611511kB time=00:02:16.00 bitrate=36833.9kbits/ frame= 4174 fps=180 q=0.0 size= 626288kB time=00:02:19.13 bitrate=36873.5kbits/ frame= 4258 fps=180 q=0.0 size= 638807kB time=00:02:21.94 bitrate=36868.0kbits/ frame= 4355 fps=180 q=0.0 size= 653064kB time=00:02:25.17 bitrate=36850.5kbits/ frame= 4452 fps=181 q=0.0 size= 667183kB time=00:02:28.41 bitrate=36826.3kbits/ frame= 4544 fps=181 q=0.0 size= 681130kB time=00:02:31.48 bitrate=36834.2kbits/ frame= 4640 fps=181 q=0.0 size= 696691kB time=00:02:34.68 bitrate=36895.6kbits/ frame= 4740 fps=181 q=0.0 size= 711711kB time=00:02:38.02 bitrate=36895.2kbits/ frame= 4834 fps=182 q=0.0 size= 726141kB time=00:02:41.16 bitrate=36910.6kbits/ frame= 4927 fps=182 q=0.0 size= 740218kB time=00:02:44.26 bitrate=36915.3kbits/ frame= 5009 fps=181 q=0.0 size= 752402kB time=00:02:47.00 bitrate=36908.2kbits/ frame= 5096 fps=181 q=0.0 size= 765328kB time=00:02:49.90 bitrate=36900.8kbits/ frame= 5192 fps=181 q=0.0 size= 779951kB time=00:02:53.10 bitrate=36910.0kbits/ frame= 5284 fps=181 q=0.0 size= 793501kB time=00:02:56.17 bitrate=36897.0kbits/ frame= 5379 fps=181 q=0.0 size= 807537kB time=00:02:59.34 bitrate=36886.0kbits/ frame= 5476 fps=182 q=0.0 size= 822034kB time=00:03:02.58 bitrate=36882.6kbits/ frame= 5567 fps=182 q=0.0 size= 835906kB time=00:03:05.61 bitrate=36891.4kbits/ frame= 5661 fps=182 q=0.0 size= 850075kB time=00:03:08.75 bitrate=36893.4kbits/ frame= 5761 fps=182 q=0.0 size= 864883kB time=00:03:12.09 bitrate=36884.0kbits/ frame= 5851 fps=182 q=0.0 size= 878796kB time=00:03:15.09 bitrate=36900.5kbits/ frame= 5951 fps=182 q=0.0 size= 894506kB time=00:03:18.43 bitrate=36928.6kbits/ frame= 6041 fps=182 q=0.0 size= 908028kB time=00:03:21.43 bitrate=36927.9kbits/ frame= 6134 fps=182 q=0.0 size= 922440kB time=00:03:24.53 bitrate=36944.9kbits/ frame= 6230 fps=182 q=0.0 size= 936754kB time=00:03:27.74 bitrate=36939.7kbits/ frame= 6319 fps=182 q=0.0 size= 949922kB time=00:03:30.71 bitrate=36931.1kbits/ frame= 6413 fps=182 q=0.0 size= 964988kB time=00:03:33.84 bitrate=36966.5kbits/ frame= 6500 fps=182 q=0.0 size= 977558kB time=00:03:36.74 bitrate=36946.5kbits/ frame= 6591 fps=182 q=0.0 size= 991774kB time=00:03:39.78 bitrate=36966.0kbits/ frame= 6690 fps=182 q=0.0 size= 1007205kB time=00:03:43.08 bitrate=36985.3kbits/ frame= 6787 fps=183 q=0.0 size= 1021390kB time=00:03:46.32 bitrate=36969.8kbits/ frame= 6886 fps=183 q=0.0 size= 1036841kB time=00:03:49.62 bitrate=36989.2kbits/ frame= 6977 fps=183 q=0.0 size= 1050526kB time=00:03:52.66 bitrate=36988.3kbits/ frame= 7059 fps=183 q=0.0 size= 1062827kB time=00:03:55.40 bitrate=36986.4kbits/ frame= 7142 fps=182 q=0.0 size= 1075130kB time=00:03:58.17 bitrate=36979.6kbits/ frame= 7236 fps=182 q=0.0 size= 1089818kB time=00:04:01.30 bitrate=36997.5kbits/ frame= 7332 fps=183 q=0.0 size= 1102861kB time=00:04:04.51 bitrate=36949.8kbits/ frame= 7430 fps=183 q=0.0 size= 1118039kB time=00:04:07.78 bitrate=36964.0kbits/ frame= 7536 fps=183 q=0.0 size= 1134283kB time=00:04:11.31 bitrate=36973.3kbits/ frame= 7538 fps=183 q=0.0 Lsize= 1136081kB time=00:04:11.51 bitrate=37002.4kbits /s dup=8 drop=0 video:1131858kB audio:3927kB subtitle:0kB other streams:0kB global headers:0kB m uxing overhead: 0.026072% D:\> }}} Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://trac.ffmpeg.org/ticket/4168> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#3947(undetermined:new): Inconsistent and confusing setting of refs with libx264
by FFmpeg 06 Oct '23

06 Oct '23

#3947: Inconsistent and confusing setting of refs with libx264 -------------------------------------+------------------------------------- Reporter: | Type: defect francois.visagie@… | Priority: normal Status: new | Version: git- Component: | master undetermined | Blocked By: Keywords: libx264 | Reproduced by developer: 0 level refs | Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: 1. '-x264opts level=x.y' is documented but does not set refs correctly 2. '-level x.y' sets refs correctly but is not documented How to reproduce: Default behaviour: {{{ ffmpeg -i _640.360.25.avi -preset veryslow output.default.mp4 ffmpeg version N-66232-g5e3da25 Copyright (c) 2000-2014 the FFmpeg developers built on Sep 10 2014 22:01:59 with gcc 4.8.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable- libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable- libilbc --enable-lib modplug --enable-libmp3lame --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge r --enable-libsoxr --enable-libspeex --enable-libtheora --enable- libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo- amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100 Guessed Channel Layout for Input Stream #0.1 : stereo Input #0, avi, from '_640.360.25.avi': Duration: 00:00:10.00, start: 0.000000, bitrate: 7561 kb/s Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 6031 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s [libx264 @ 0364f380] using SAR=1/1 [libx264 @ 0364f380] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 0364f380] profile High, level 3.1 [libx264 @ 0364f380] 264 - core 142 r2479 dd79a61 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 de block=1:0:0 analyse=0x3:0x133 me=umh subme=10 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 ch roma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=8 b_pyramid=2 b_adapt= 2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmi n=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'output.default.mp4': Metadata: encoder : Lavf56.4.101 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc56.1.100 libx264 Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc56.1.100 libvo_aacenc Stream mapping: Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (libvo_aacenc)) Press [q] to stop, [?] for help frame= 251 fps= 15 q=-1.0 Lsize= 1184kB time=00:00:10.01 bitrate= 968.6kbits/s dup=1 drop=0 video:1019kB audio:157kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.723548% [libx264 @ 0364f380] frame I:2 Avg QP:25.09 size: 36162 [libx264 @ 0364f380] frame P:60 Avg QP:24.47 size: 12750 [libx264 @ 0364f380] frame B:189 Avg QP:31.31 size: 1085 [libx264 @ 0364f380] consecutive B-frames: 0.8% 6.4% 12.0% 33.5% 13.9% 33.5% 0.0% 0.0% 0.0% [libx264 @ 0364f380] mb I I16..4: 4.0% 77.1% 18.9% [libx264 @ 0364f380] mb P I16..4: 0.4% 1.3% 0.4% P16..4: 36.6% 20.6% 30.7% 3.7% 1.5% skip: 4.8% [libx264 @ 0364f380] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 47.7% 4.8% 1.7% direct: 1.3% skip:44.4% L0:41.8% L1:40.5% BI:17.7% [libx264 @ 0364f380] 8x8 transform intra:70.9% inter:53.0% [libx264 @ 0364f380] direct mvs spatial:97.4% temporal:2.6% [libx264 @ 0364f380] coded y,uvDC,uvAC intra: 81.8% 78.8% 40.8% inter: 14.5% 11.3% 2.0% [libx264 @ 0364f380] i16 v,h,dc,p: 41% 17% 28% 14% [libx264 @ 0364f380] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 10% 18% 8% 10% 10% 9% 9% 11% [libx264 @ 0364f380] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 6% 6% 10% 13% 13% 12% 12% 13% [libx264 @ 0364f380] i8c dc,h,v,p: 28% 28% 31% 13% [libx264 @ 0364f380] Weighted P-Frames: Y:18.3% UV:10.0% [libx264 @ 0364f380] ref P L0: 58.5% 17.3% 8.4% 4.3% 1.8% 2.6% 1.3% 1.3% 0.7% 0.9% 0.5% 0.5% 0.5% 0.5% 0.4% 0.5% [libx264 @ 0364f380] ref B L0: 91.8% 3.9% 2.0% 0.5% 0.5% 0.3% 0.2% 0.1% 0.2% 0.1% 0.1% 0.1% 0.1% 0.1% 0.0% [libx264 @ 0364f380] ref B L1: 95.5% 4.5% [libx264 @ 0364f380] kb/s:830.51 }}} {{{ Expected default refs value: 16 Actual refs value: 16 }}} Documented '-x264opts level=x.y' option: {{{ ffmpeg -i _640.360.25.avi -preset veryslow -x264opts level=3.0 output.-- level3.0.mp4 ffmpeg version N-66232-g5e3da25 Copyright (c) 2000-2014 the FFmpeg developers built on Sep 10 2014 22:01:59 with gcc 4.8.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable- libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable- libilbc --enable-lib modplug --enable-libmp3lame --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge r --enable-libsoxr --enable-libspeex --enable-libtheora --enable- libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo- amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100 Guessed Channel Layout for Input Stream #0.1 : stereo Input #0, avi, from '_640.360.25.avi': Duration: 00:00:10.00, start: 0.000000, bitrate: 7561 kb/s Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 6031 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s [libx264 @ 0429e880] using SAR=1/1 [libx264 @ 0429e880] DPB size (16 frames, 14720 mbs) > level limit (8 frames, 8100 mbs) [libx264 @ 0429e880] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 0429e880] profile High, level 3.0 [libx264 @ 0429e880] 264 - core 142 r2479 dd79a61 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 de block=1:0:0 analyse=0x3:0x133 me=umh subme=10 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 ch roma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=8 b_pyramid=2 b_adapt= 2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmi n=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'output.--level3.0.mp4': Metadata: encoder : Lavf56.4.101 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc56.1.100 libx264 Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc56.1.100 libvo_aacenc Stream mapping: Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (libvo_aacenc)) Press [q] to stop, [?] for help frame= 251 fps= 15 q=-1.0 Lsize= 1184kB time=00:00:10.01 bitrate= 968.7kbits/s dup=1 drop=0 video:1019kB audio:157kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.723486% [libx264 @ 0429e880] frame I:2 Avg QP:25.09 size: 36162 [libx264 @ 0429e880] frame P:60 Avg QP:24.47 size: 12748 [libx264 @ 0429e880] frame B:189 Avg QP:31.30 size: 1085 [libx264 @ 0429e880] consecutive B-frames: 0.8% 6.4% 12.0% 33.5% 13.9% 33.5% 0.0% 0.0% 0.0% [libx264 @ 0429e880] mb I I16..4: 4.0% 77.1% 18.9% [libx264 @ 0429e880] mb P I16..4: 0.4% 1.3% 0.4% P16..4: 36.6% 20.6% 30.7% 3.7% 1.5% skip: 4.9% [libx264 @ 0429e880] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 47.7% 4.8% 1.7% direct: 1.3% skip:44.4% L0:41.8% L1:40.5% BI:17.7% [libx264 @ 0429e880] 8x8 transform intra:70.9% inter:53.0% [libx264 @ 0429e880] direct mvs spatial:97.4% temporal:2.6% [libx264 @ 0429e880] coded y,uvDC,uvAC intra: 81.8% 78.9% 40.8% inter: 14.5% 11.3% 2.0% [libx264 @ 0429e880] i16 v,h,dc,p: 41% 17% 28% 14% [libx264 @ 0429e880] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 10% 18% 8% 10% 10% 9% 9% 11% [libx264 @ 0429e880] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 6% 6% 10% 13% 12% 12% 12% 13% [libx264 @ 0429e880] i8c dc,h,v,p: 28% 28% 31% 13% [libx264 @ 0429e880] Weighted P-Frames: Y:18.3% UV:10.0% [libx264 @ 0429e880] ref P L0: 58.5% 17.3% 8.4% 4.3% 1.8% 2.6% 1.3% 1.3% 0.7% 0.9% 0.5% 0.6% 0.5% 0.5% 0.4% 0.5% [libx264 @ 0429e880] ref B L0: 91.8% 3.9% 2.0% 0.6% 0.5% 0.3% 0.2% 0.1% 0.2% 0.1% 0.1% 0.1% 0.1% 0.1% 0.0% [libx264 @ 0429e880] ref B L1: 95.5% 4.5% [libx264 @ 0429e880] kb/s:830.59 }}} {{{ Expected refs value: 8 Actual refs value: 16 }}} Undocumented '-level x.y' option: {{{ ffmpeg -i _640.360.25.avi -preset veryslow -level 3.0 output.-level3.0.mp4 ffmpeg version N-66232-g5e3da25 Copyright (c) 2000-2014 the FFmpeg developers built on Sep 10 2014 22:01:59 with gcc 4.8.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable- libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable- libilbc --enable-lib modplug --enable-libmp3lame --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge r --enable-libsoxr --enable-libspeex --enable-libtheora --enable- libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo- amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib libavutil 54. 7.100 / 54. 7.100 libavcodec 56. 1.100 / 56. 1.100 libavformat 56. 4.101 / 56. 4.101 libavdevice 56. 0.100 / 56. 0.100 libavfilter 5. 1.100 / 5. 1.100 libswscale 3. 0.100 / 3. 0.100 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 0.100 / 53. 0.100 Guessed Channel Layout for Input Stream #0.1 : stereo Input #0, avi, from '_640.360.25.avi': Duration: 00:00:10.00, start: 0.000000, bitrate: 7561 kb/s Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 6031 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 2 channels, s16, 1536 kb/s [libx264 @ 041af7e0] using SAR=1/1 [libx264 @ 041af7e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 041af7e0] profile High, level 3.0 [libx264 @ 041af7e0] 264 - core 142 r2479 dd79a61 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=8 deb lock=1:0:0 analyse=0x3:0x133 me=umh subme=10 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chr oma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=8 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin =0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to 'output.-level3.0.mp4': Metadata: encoder : Lavf56.4.101 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc56.1.100 libx264 Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s Metadata: encoder : Lavc56.1.100 libvo_aacenc Stream mapping: Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264)) Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (libvo_aacenc)) Press [q] to stop, [?] for help frame= 251 fps= 20 q=-1.0 Lsize= 1189kB time=00:00:10.01 bitrate= 972.8kbits/s dup=1 drop=0 video:1024kB audio:157kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.720318% [libx264 @ 041af7e0] frame I:2 Avg QP:25.09 size: 36162 [libx264 @ 041af7e0] frame P:60 Avg QP:24.47 size: 12846 [libx264 @ 041af7e0] frame B:189 Avg QP:31.33 size: 1082 [libx264 @ 041af7e0] consecutive B-frames: 0.8% 6.4% 12.0% 33.5% 13.9% 33.5% 0.0% 0.0% 0.0% [libx264 @ 041af7e0] mb I I16..4: 4.0% 77.1% 18.9% [libx264 @ 041af7e0] mb P I16..4: 0.5% 1.2% 0.4% P16..4: 36.3% 20.6% 30.8% 3.8% 1.6% skip: 4.8% [libx264 @ 041af7e0] mb B I16..4: 0.0% 0.1% 0.0% B16..8: 48.1% 4.7% 1.5% direct: 1.3% skip:44.3% L0:41.3% L1:40.7% BI:18.0% [libx264 @ 041af7e0] 8x8 transform intra:68.7% inter:52.3% [libx264 @ 041af7e0] direct mvs spatial:97.4% temporal:2.6% [libx264 @ 041af7e0] coded y,uvDC,uvAC intra: 80.8% 78.4% 39.7% inter: 14.6% 11.3% 2.0% [libx264 @ 041af7e0] i16 v,h,dc,p: 43% 17% 25% 15% [libx264 @ 041af7e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 10% 18% 8% 10% 10% 10% 9% 11% [libx264 @ 041af7e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 6% 6% 10% 12% 13% 11% 12% 13% [libx264 @ 041af7e0] i8c dc,h,v,p: 29% 27% 31% 14% [libx264 @ 041af7e0] Weighted P-Frames: Y:18.3% UV:10.0% [libx264 @ 041af7e0] ref P L0: 59.9% 17.9% 8.6% 4.8% 2.1% 3.1% 1.5% 1.9% 0.2% 0.0% [libx264 @ 041af7e0] ref B L0: 92.3% 4.0% 2.1% 0.5% 0.6% 0.3% 0.1% [libx264 @ 041af7e0] ref B L1: 95.5% 4.5% [libx264 @ 041af7e0] kb/s:834.70 }}} {{{ Expected refs value: 8 Actual refs value: 8 }}} Arguably the most consistent fix would be to correct '-x264opts level=x.y' to behave like '-level x.y', and for '-level x.y' to also be documented. -- Ticket URL: <https://trac.ffmpeg.org/ticket/3947> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#3740(avfilter:new): drawtext drops backslashes
by FFmpeg 02 Oct '23

02 Oct '23

#3740: drawtext drops backslashes ----------------------------------+-------------------------------------- Reporter: Krieger | Type: defect Status: new | Priority: normal Component: avfilter | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+-------------------------------------- Summary of the bug: How to reproduce: Create files for tests, with contents: /tmp/tmp0: {{{ testsrc,drawtext=text=TEST\\\\:fontsize=50:fontfile=/usr/share/fonts/corefonts/verdana.ttf:fontcolor=red }}} /tmp/tmp1: {{{ testsrc,drawtext=text=TEST\\\\TEST:fontsize=50:fontfile=/usr/share/fonts/corefonts/verdana.ttf:fontcolor=red }}} {{{ffplay -f lavfi -graph_file /tmp/tmp0 -i nullsrc}}} gives correct results - we have a backslash in the end of drawn text , but {{{ffplay -f lavfi -graph_file /tmp/tmp1 -i nullsrc}}} gives no backslash. The second variant with adding {{{expansion=none}}} works correctly. The uncut console output: {{{ ffplay version N-64175-g33ab751 Copyright (c) 2003-2014 the FFmpeg developers built on Jun 24 2014 17:05:19 with gcc 4.7.3 (Gentoo 4.7.3-r1 p1.4, pie-0.5.5) configuration: --enable-debug --extra-cflags='-O0 -g -ggdb' --enable-pic --disable-stripping --enable-openssl --enable-protocol=file --enable- protocol=pipe --enable-protocol=http --enable-protocol=https --enable- muxer=matroska --enable-muxer=mjpeg --enable-muxer=rtp --enable-muxer=mp4 --enable-demuxer=rtsp --enable-demuxer=matroska --enable-demuxer=mjpeg --enable-decoder=h264 --enable-decoder=mpeg4 --enable-decoder=mjpeg --enable-parser=h264 --enable-parser=mpeg4video --enable-parser=mjpeg --enable-encoder=mjpeg --enable-libfreetype libavutil 52. 90.100 / 52. 90.100 libavcodec 55. 68.100 / 55. 68.100 libavformat 55. 44.100 / 55. 44.100 libavdevice 55. 13.101 / 55. 13.101 libavfilter 4. 9.100 / 4. 9.100 libswscale 2. 6.100 / 2. 6.100 libswresample 0. 19.100 / 0. 19.100 Input #0, lavfi, from 'nullsrc': 0KB vq= 0KB sq= 0B f=0/0 Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc 6.24 M-V: 0.000 fd= 0 aq= 0KB vq= 1350KB sq= 0B f=0/0 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/3740> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 3

#3438(documentation:new): Add documentation for adding a FATE test
by FFmpeg 02 Oct '23

02 Oct '23

#3438: Add documentation for adding a FATE test -------------------------------------+------------------------------------- Reporter: | Owner: Timothy_Gu | Status: new Type: | Component: enhancement | documentation Priority: wish | Keywords: fate Version: git- | Blocking: master | Analyzed by developer: 0 Blocked By: | Reproduced by developer: 1 | -------------------------------------+------------------------------------- Documentation for adding a FATE test is very useful for people who submit their own small filter or decoder and who wish to add regression tests for them. Libav has a rudimentary tutorial [https://wiki.libav.org/FATE here]. The place I have on mind to store this kind of info is [[FATE/AddingATest]]. -- Ticket URL: <https://trac.ffmpeg.org/ticket/3438> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 2

#3433(ffmpeg:new): using "shortest" results in mismatched audio and video lengths
by FFmpeg 02 Oct '23

02 Oct '23

#3433: using "shortest" results in mismatched audio and video lengths -----------------------------------+-------------------------------------- Reporter: mjmvisser | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: git-master Keywords: shortest | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -----------------------------------+-------------------------------------- Summary of the bug: "-shortest" does not add trim/atrim filters, so the length of each output stream will be a multiple of sample size. In the given example, the video is exactly 1s, but the resulting output is 1.02s. If "-t 1.000" is passed instead of "-shortest", the resulting output is exactly 1s. The difference is that using "-t" adds trim/atrim filters, so the last frame->nb_samples encoded will be truncated to fit the given duration. How to reproduce: {{{ % ffmpeg -y -probesize 500000 -f image2 -r 25 -i colorbars.%04d.png -i 100Hz_44100Hz_16bit_05sec.wav -shortest -c:v png -c:a pcm_s16le -q:v 1 -2 -f mov colorbars.mov Note that input streams have durations of 5s and 1s. % ffprobe colorbars.mov Note that the output stream has a duration of 1.02s. ffmpeg version N-60960-gf3eef02 built on Feb 28 2014 10:31:20 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/3433> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 2

#3720(undetermined:new): Support decoding of Xunlei XV file
by FFmpeg 19 Sep '23

19 Sep '23

#3720: Support decoding of Xunlei XV file -------------------------------------+------------------------------------- Reporter: ElDimentio | Type: Status: new | enhancement Component: | Priority: wish undetermined | Version: git- Keywords: xv | master Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- Xunlei is a major Chinese corporation with a monopoly on video downloading in China; they allow to download and play all sorts of Chinese TV shows for free but they're all in XV format, which is only supported by a video player Xunlei made. The video is H.264 video. FFMPEG cannot play this. When I try "ffmpeg -i 1.xv" I get the following: http://i.imgur.com/PrRNzvs.png Here is a link to 1.xv: https://www.dropbox.com/s/0rlzjm9b1apg0j5/1.xv 1.xv is 180MB, and it's supposed to be a video of about 45 minutes. Thanks! -- Ticket URL: <https://trac.ffmpeg.org/ticket/3720> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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