#10874: Bug: ffmpeg/ffprobe/ffplay can't handle ts file with codec_name as 'png'
-------------------------------------+-------------------------------------
Reporter: Mike Zang | Type: defect
Status: new | Priority: important
Component: | Version: 6.1
undetermined |
Keywords: leading 8 | Blocked By:
bytes is png header. |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
When run ffprobe 001.ts, the message as below, this ts file's codec_name
is 'png', the leading 8 bytes is a png header, the video is started from
9th byte, ffprobe/ffplay/ffmpeg should add this type of video file:
{{{
% ffprobe 001.ts
ffprobe version 2023-11-13-git-67a2571a55-full_build-www.gyan.dev
Copyright (c) 2007-2023 the FFmpeg developers
built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --pkg-
config=pkgconf --disable-w32threads --disable-autodetect --enable-
fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp
--enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-
librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth
--enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24
--enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-
libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-
libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-
libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-
libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-
libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun
--enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf
--enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
--enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-
libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-
libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-
libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora
--enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-
libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus
--enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b
--enable-libflite --enable-libmysofa --enable-librubberband --enable-
libsoxr --enable-chromaprint
libavutil 58. 32.100 / 58. 32.100
libavcodec 60. 33.100 / 60. 33.100
libavformat 60. 17.100 / 60. 17.100
libavdevice 60. 4.100 / 60. 4.100
libavfilter 9. 13.100 / 9. 13.100
libswscale 7. 6.100 / 7. 6.100
libswresample 4. 13.100 / 4. 13.100
libpostproc 57. 4.100 / 57. 4.100
[png @ 00000196aa58e940] inflate returned error -3
Input #0, png_pipe, from '001.ts':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, pal8(pc, gbr/unknown/unknown), 800x800, 25 fps,
25 tbr, 25 tbn
}}}
The message as below after skip leading 8 bytes:
{{{
% ffprobe 001-8bytes.ts
ffprobe version 6.0 Copyright (c) 2007-2023 the FFmpeg developers
built with Apple clang version 14.0.0 (clang-1400.0.29.202)
configuration: --prefix=/usr/local/Cellar/ffmpeg/6.0_1 --enable-shared
--enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-
ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom
--enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libjxl
--enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist
--enable-librubberband --enable-libsnappy --enable-libsrt --enable-
libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab
--enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid
--enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r
--enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq
--enable-libzimg --disable-libjack --disable-indev=jack --enable-
videotoolbox --enable-audiotoolbox
libavutil 58. 2.100 / 58. 2.100
libavcodec 60. 3.100 / 60. 3.100
libavformat 60. 3.100 / 60. 3.100
libavdevice 60. 1.100 / 60. 1.100
libavfilter 9. 3.100 / 9. 3.100
libswscale 7. 1.100 / 7. 1.100
libswresample 4. 10.100 / 4. 10.100
libpostproc 57. 1.100 / 57. 1.100
Input #0, mpegts, from ‘001-8bytes.ts’:
Duration: 00:00:08.08, start: 1.480000, bitrate: 1180 kb/s
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B),
yuv420p(tv, bt709, progressive), 1920x1080, 25 fps, 25 tbr, 90k tbn
Stream #0:1[0x101](und): Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100
Hz, stereo, fltp, 170 kb/s
}}}
This link "ffprobe output video:
png"[https://stackoverflow.com/questions/59341324/ffprobe-output-video-
png] can be referred, more information about such video file can be found
as below
{{{
{'avg_frame_rate': '25/1',
'closed_captions': 0,
'codec_long_name': 'PNG (Portable Network Graphics) image',
'codec_name': 'png',
'codec_tag': '0x0000',
'codec_tag_string': '[0][0][0][0]',
'codec_type': 'video',
'coded_height': 800,
'coded_width': 800,
'color_range': 'pc',
'color_space': 'gbr',
'disposition': {'attached_pic': 0,
'captions': 0,
'clean_effects': 0,
'comment': 0,
'default': 0,
'dependent': 0,
'descriptions': 0,
'dub': 0,
'forced': 0,
'hearing_impaired': 0,
'karaoke': 0,
'lyrics': 0,
'metadata': 0,
'non_diegetic': 0,
'original': 0,
'still_image': 0,
'timed_thumbnails': 0,
'visual_impaired': 0},
'film_grain': 0,
'has_b_frames': 0,
'height': 800,
'index': 0,
'level': -99,
'pix_fmt': 'pal8',
'r_frame_rate': '25/1',
'refs': 1,
'time_base': '1/25',
'width': 800}
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10874>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
