[FFmpeg-trac] #7125(undetermined:new): ffmpeg not identifying jpeg without extension
FFmpeg
trac at avcodec.org
Wed Apr 4 19:25:55 EEST 2018
#7125: ffmpeg not identifying jpeg without extension
-------------------------------------+-------------------------------------
Reporter: bjorn | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
The latest version of ffmpeg does not identify the attached jpeg as a jpeg
when passed as an argument without extension. A build of ffmpeg from
homebrew works fine.
How to reproduce:
{{{
twiggy:FFmpeg-official bjorn$ ./ffmpeg -i /Users/bjorn/Downloads/chex
out.gif
ffmpeg version N-90612-g2f27370111 Copyright (c) 2000-2018 the FFmpeg
developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local --enable-gpl --enable-nonfree
--enable-libass --enable-libvpx --enable-libfdk-aac --enable-libfreetype
--enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx
--enable-libx264 --enable-libx265 --enable-libopus --enable-libxvid
--samples=../fate-suite/
libavutil 56. 13.100 / 56. 13.100
libavcodec 58. 17.100 / 58. 17.100
libavformat 58. 10.100 / 58. 10.100
libavdevice 58. 2.100 / 58. 2.100
libavfilter 7. 14.100 / 7. 14.100
libswscale 5. 0.102 / 5. 0.102
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
[amrnb @ 0x7f86f3001200] Estimating duration from bitrate, this may be
inaccurate
Input #0, amrnb, from '/Users/bjorn/Downloads/chex':
Duration: 00:41:39.14, bitrate: 3 kb/s
Stream #0:0: Audio: amr_nb, 8000 Hz, mono, flt
Output #0, gif, to 'out.gif':
Output file #0 does not contain any stream
}}}
homebrew (custom build options) 3.4.2 works fine, albeit with a warning:
{{{
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.2 --enable-shared
--enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-
avresample --cc=clang --host-cflags= --host-ldflags= --disable-jack
--enable-gpl --enable-libass --enable-libfdk-aac --enable-libfontconfig
--enable-libfreetype --enable-libmp3lame --enable-librtmp --enable-libsoxr
--enable-libspeex --enable-libssh --enable-libtheora --enable-libvorbis
--enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxvid --enable-opencl --enable-videotoolbox --enable-openssl
--disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-
cflags=-I/usr/local/Cellar/openjpeg/2.3.0/include/openjpeg-2.3 --enable-
nonfree
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
[jpeg_pipe @ 0x7fe116805e00] Format jpeg_pipe detected only with low score
of 25, misdetection possible!
Input #0, jpeg_pipe, from '/Users/bjorn/Downloads/chex':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
7880x7880 [SAR 788:788 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> gif (native))
Press [q] to stop, [?] for help
[swscaler @ 0x7fe116816400] deprecated pixel format used, make sure you
did set range correctly
[swscaler @ 0x7fe116816400] No accelerated colorspace conversion found
from yuv420p to bgr8.
Output #0, gif, to 'out.gif':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Video: gif, bgr8, 7880x7880 [SAR 1:1 DAR 1:1], q=2-31,
200 kb/s, 25 fps, 100 tbn, 25 tbc
Metadata:
encoder : Lavc57.107.100 gif
frame= 1 fps=0.0 q=-0.0 Lsize= 636kB time=00:00:00.01
bitrate=521400.8kbits/s speed=0.0122x
video:636kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.124281%
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7125>
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