[FFmpeg-trac] #4184(ffmpeg:new): No warning is shown if -vf is specified too often.
FFmpeg
trac at avcodec.org
Sat Dec 13 12:34:32 CET 2014
#4184: No warning is shown if -vf is specified too often.
--------------------------------------+--------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: minor | Component: ffmpeg
Version: git-master | Keywords:
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
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The following works as expected:
{{{
$ ffmpeg -i fate-suite/lena.pnm -vf hflip out1.png -vf vflip out2.png
}}}
The following should show a warning, some users expect that one filter
chains' output is used as input for the next filter:
{{{
$ ffmpeg -i fate-suite/lena.pnm -vf hflip -vf vflip out.png
ffmpeg version N-68401-g792a500 Copyright (c) 2000-2014 the FFmpeg
developers
built on Dec 13 2014 12:28:49 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 54. 15.100 / 54. 15.100
libavcodec 56. 14.100 / 56. 14.100
libavformat 56. 15.104 / 56. 15.104
libavdevice 56. 3.100 / 56. 3.100
libavfilter 5. 3.101 / 5. 3.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, image2, from 'fate-suite/lena.pnm':
Duration: 00:00:00.04, start: 0.000000, bitrate: 39333 kb/s
Stream #0:0: Video: ppm, rgb24, 256x256, 25 tbr, 25 tbn, 25 tbc
Output #0, image2, to 'out.png':
Metadata:
encoder : Lavf56.15.104
Stream #0:0: Video: png, rgb24, 256x256, q=2-31, 200 kb/s, 25 fps, 25
tbn, 25 tbc
Metadata:
encoder : Lavc56.14.100 png
Stream mapping:
Stream #0:0 -> #0:0 (ppm (native) -> png (native))
Press [q] to stop, [?] for help
frame= 1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
video:177kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4184>
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