June 2017 - FFmpeg-trac - lists.ffmpeg.org

#5392(undetermined:new): A bug in the scale2ref filter
by FFmpeg 02 Jun '17

02 Jun '17

#5392: A bug in the scale2ref filter -------------------------------------+------------------------------------- Reporter: mulvya | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- The scale2ref filter allows one to resize an input with reference to a secondary input. However, this can lead to an undesired outcome when the frame aspect ratios of the two inputs are not the same. Consider the case where a square-pixel 2:1 watermark logo needs to be resized with reference to a square-pixel 4:3 base video. With the scale2ref filter, an expression of '''scale2ref=-1:ih/2''' will lead to the resized watermark having a ratio of 4:3. Not what most users would desire or expect. A demo command to show the behaviour: {{{ ffmpeg -f lavfi -i "color=black:600x600" -f lavfi -i "color=white:1200x600" -filter_complex "[1][0]scale2ref=-1:ih/2[1v][0v];[0v][1v]overlay[v]" -map "[v]" -t 1 scale2ref-ar-bug.mp4 }}} There should be a way to flag ffmpeg to preserve the operand's aspect ratio with the scale2ref filter. -- Ticket URL: <https://trac.ffmpeg.org/ticket/5392> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#6430(avformat:new): Ogg audio file not detected
by FFmpeg 02 Jun '17

02 Jun '17

#6430: Ogg audio file not detected ----------------------------------+-------------------------------------- Reporter: cgbug | Type: defect Status: new | Priority: normal Component: avformat | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+-------------------------------------- Sample: http://www.datafilehost.com/d/1c2c88bf MediaInfo correctly detects it as an Ogg file. FFmpeg output: {{{ ffmpeg version N-86310-g220b24c Copyright (c) 2000-2017 the FFmpeg developers built with gcc 7.1.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-cuda --enable- cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --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-zlib libavutil 55. 63.100 / 55. 63.100 libavcodec 57. 96.101 / 57. 96.101 libavformat 57. 72.101 / 57. 72.101 libavdevice 57. 7.100 / 57. 7.100 libavfilter 6. 90.100 / 6. 90.100 libswscale 4. 7.101 / 4. 7.101 libswresample 2. 8.100 / 2. 8.100 libpostproc 54. 6.100 / 54. 6.100 Taking_Damage_3.SoundNodeWave: Invalid data found when processing input }}} And after renaming to .ogg: {{{ [ogg @ 00000000002d72c0] Format ogg detected only with low score of 1, misdetection possible! Input #0, ogg, from 'Taking_Damage_3.SoundNodeWave.ogg': Duration: 00:00:01.43, start: 0.000000, bitrate: 416 kb/s Stream #0:0: Audio: vorbis, 22050 Hz, mono, fltp, 37 kb/s Metadata: ENCODER : UnrealEngine3 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/6430> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#6435(ffmpeg:new): don't give overwriting error if the output is dev/null or pass 1 is specified.
by FFmpeg 01 Jun '17

01 Jun '17

#6435: don't give overwriting error if the output is dev/null or pass 1 is specified. ---------------------------------------+-------------------------------- Reporter: compn | Owner: Type: enhancement | Status: new Priority: wish | Component: ffmpeg Version: git-master | Keywords: Blocked By: | Blocking: Reproduced by developer: 0 | Analyzed by developer: 0 ---------------------------------------+-------------------------------- F:\>ffmpeg -i traintobusan.mp4 -c copy -f ipod NUL ffmpeg version N-83243-g2080bc3 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 5.4.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-cuda --enable- cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-l ibass --enable-libbluray --enable-libbs2b --enable-libcaca --enable- libfreetype --enable-libgme --enable-libgsm --enable-libi lbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enab le-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --e nable-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. 45.100 / 55. 45.100 libavcodec 57. 75.100 / 57. 75.100 libavformat 57. 63.100 / 57. 63.100 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 70.100 / 6. 70.100 libswscale 4. 3.101 / 4. 3.101 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'traintobusan.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf56.4.101 Duration: 01:58:00.90, start: 0.000000, bitrate: 688 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc), 676x360 [SAR 675:676 DAR 15:8], 599 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default) Metadata: handler_name : VideoHandler Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 80 kb/s (default) Metadata: handler_name : SoundHandler File 'NUL' already exists. Overwrite ? [y/N] NUL is aka windows /dev/null , same thing applies on linux. -- Ticket URL: <https://trac.ffmpeg.org/ticket/6435> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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#6405(undetermined:new): Compile troubles with “cuvid”, “nvenc” and “npp”
by FFmpeg 01 Jun '17

01 Jun '17

#6405: Compile troubles with “cuvid”, “nvenc” and “npp” -------------------------------------+------------------------------------- Reporter: ahakon | Type: defect Status: new | Priority: normal Component: | Version: git- undetermined | master Keywords: cuvid, | Blocked By: nvenc, npp, cuda-sdk | Reproduced by developer: 0 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Hi, Regarding the last tree in the repository (at 2017-05-19), two troubles appears when you compile with cuvid, nvenc and npp. First of all, you don’t need at all to compile with the CUDA SDK. The FFmpeg compat/cuda directory has the headers. So, in order to use the cuvid & nvenc modules you can just compile with “--enable-cuvid --enable- nvenc --enable-cuda --disable-cuda-sdk”. When you compile in this way the resulting binary doesn’t need to link with cuda lib (-lcuda). The executable dynamically links with the video driver, not the cuda lib. The trouble, however is the bump in the required version of the driver. Today the “long-lived” video driver version for Linux is 375.66. However, the current headers targets 378.13 or newer. So, please, add some warning when the driver fails. And document the requirement. From the original patch from Timo Rothenpieler: “compat/cuda: update cuvid/nvdec headers to Video Codec SDK 8.0.14 This raises the required minimum NVIDIA display driver versions: NVIDIA Linux display driver 378.13 or newer NVIDIA Windows display driver 378.66 or newer” The second trouble is related to the compilation with the scale_npp filter. In the current configuration is required to enable cuda_sdk. Some modules, like scale_cuda, really need to link with the CUDA lib (-lcuda). However, this is not the case with the scale_npp filter. It’s uses the libnpp* libraries. Then this simple patch in the configuration file resolves the trouble: -scale_npp_filter_deps="cuda_sdk libnpp" +scale_npp_filter_deps="cuda libnpp" I hope someone takes note of these troubles and accept to fix them. Regards. -- Ticket URL: <https://trac.ffmpeg.org/ticket/6405> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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