ffmpeg 分段因浮点异常而失败
ffmpeg segmentation fails with floating point exception
我正在尝试使用以下命令对视频进行分段:
ffmpeg -i /home/user/videos/0001.MP4 -codec copy -map 0 -f segment -segment_frames 66 /tmp/boos/0001/0001_%03d.MP4
工作几秒后,输出为
frame= 251 fps=0.0 q=-1.0 size=N/A time=00:00:10.02 bitrate=N/A speed=19.6x
进程因浮点异常而失败。完整的输出如下所示。由于以下观察结果,我怀疑问题可能是 GoPro 视频特有的:
- 如果我先使用 ffmpeg 重新编码相同的视频,则分割成功。
- 其他视频(非 GoPro)不会导致问题。
对于如何追踪甚至解决问题的任何建议,我将不胜感激。
完整输出:
ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/broadbelt/videos/0001.MP4':
Metadata:
major_brand : mp41
minor_version : 538120216
compatible_brands: mp41
creation_time : 2019-11-18T13:55:42.000000Z
firmware : HD7.01.01.80.00
Duration: 00:17:38.22, start: 0.000000, bitrate: 30245 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 30000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AVC
encoder : GoPro AVC encoder
timecode : 13:55:42:21
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AAC
timecode : 13:55:42:21
Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro TCD
timecode : 13:55:42:21
Stream #0:3(eng): Data: none (gpmd / 0x646D7067), 37 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro MET
Stream #0:4(eng): Data: none (fdsc / 0x63736466), 9 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro SOS
<span style="background-color:#2E3436"><font color="#FF87FF">[segment @ 0x562a95062f40] </font></span>Opening '/tmp/boost/0001/0001_000.MP4' for writing
<span style="background-color:#2E3436"><font color="#FF87FF">[mp4 @ 0x562a9506a600] </font></span><span style="background-color:#2E3436"><font color="#FF0000">Timecode frame rate must be specified</font></span>
Output #0, segment, to '/tmp/boost/0001/0001_%03d.MP4':
Metadata:
major_brand : mp41
minor_version : 538120216
compatible_brands: mp41
firmware : HD7.01.01.80.00
encoder : Lavf57.83.100
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 30000 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AVC
encoder : GoPro AVC encoder
timecode : 13:55:42:21
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AAC
timecode : 13:55:42:21
Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro TCD
timecode : 13:55:42:21
Stream #0:3(eng): Data: none (gpmd / 0x646D7067), 37 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro MET
Stream #0:4(eng): Data: none (fdsc / 0x63736466), 9 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro SOS
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Stream #0:2 -> #0:2 (copy)
Stream #0:3 -> #0:3 (copy)
Stream #0:4 -> #0:4 (copy)
Press [q] to stop, [?] for help
**Floating point exception (core dumped)me=00:00:01.00 bitrate=N/A speed=0.143x**
这是旧版本 ffmpeg 中的一个错误,在少数情况下通过将时间码轨道复制到 MP4/MOV 输出段而触发。我去年六月修补了它。所以升级到 4.3 或最近的 git 版本。
我正在尝试使用以下命令对视频进行分段:
ffmpeg -i /home/user/videos/0001.MP4 -codec copy -map 0 -f segment -segment_frames 66 /tmp/boos/0001/0001_%03d.MP4
工作几秒后,输出为
frame= 251 fps=0.0 q=-1.0 size=N/A time=00:00:10.02 bitrate=N/A speed=19.6x
进程因浮点异常而失败。完整的输出如下所示。由于以下观察结果,我怀疑问题可能是 GoPro 视频特有的:
- 如果我先使用 ffmpeg 重新编码相同的视频,则分割成功。
- 其他视频(非 GoPro)不会导致问题。
对于如何追踪甚至解决问题的任何建议,我将不胜感激。
完整输出:
ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/broadbelt/videos/0001.MP4':
Metadata:
major_brand : mp41
minor_version : 538120216
compatible_brands: mp41
creation_time : 2019-11-18T13:55:42.000000Z
firmware : HD7.01.01.80.00
Duration: 00:17:38.22, start: 0.000000, bitrate: 30245 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 30000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AVC
encoder : GoPro AVC encoder
timecode : 13:55:42:21
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AAC
timecode : 13:55:42:21
Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro TCD
timecode : 13:55:42:21
Stream #0:3(eng): Data: none (gpmd / 0x646D7067), 37 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro MET
Stream #0:4(eng): Data: none (fdsc / 0x63736466), 9 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro SOS
<span style="background-color:#2E3436"><font color="#FF87FF">[segment @ 0x562a95062f40] </font></span>Opening '/tmp/boost/0001/0001_000.MP4' for writing
<span style="background-color:#2E3436"><font color="#FF87FF">[mp4 @ 0x562a9506a600] </font></span><span style="background-color:#2E3436"><font color="#FF0000">Timecode frame rate must be specified</font></span>
Output #0, segment, to '/tmp/boost/0001/0001_%03d.MP4':
Metadata:
major_brand : mp41
minor_version : 538120216
compatible_brands: mp41
firmware : HD7.01.01.80.00
encoder : Lavf57.83.100
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, bt709), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 30000 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AVC
encoder : GoPro AVC encoder
timecode : 13:55:42:21
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro AAC
timecode : 13:55:42:21
Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro TCD
timecode : 13:55:42:21
Stream #0:3(eng): Data: none (gpmd / 0x646D7067), 37 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro MET
Stream #0:4(eng): Data: none (fdsc / 0x63736466), 9 kb/s (default)
Metadata:
creation_time : 2019-11-18T13:55:42.000000Z
handler_name : GoPro SOS
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Stream #0:2 -> #0:2 (copy)
Stream #0:3 -> #0:3 (copy)
Stream #0:4 -> #0:4 (copy)
Press [q] to stop, [?] for help
**Floating point exception (core dumped)me=00:00:01.00 bitrate=N/A speed=0.143x**
这是旧版本 ffmpeg 中的一个错误,在少数情况下通过将时间码轨道复制到 MP4/MOV 输出段而触发。我去年六月修补了它。所以升级到 4.3 或最近的 git 版本。