#1992: Create thumbnail error
-------------------------------------+-------------------------------------
Reporter: bfi | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
I have a bunch of flvs that I scale and convert to mp4, then create a
thumbnail. All the mp4s are created fine, but 9 thumbnails out of 22 fail.
All flvs are encoded the same, but are of different sizes.
How to reproduce:
{{{
% ffmpeg -i 78d04424cb944fe6bf8a42d88004d7f7.mp4 -vf thumbnail -frames:v 6
78d04424cb944fe6bf8a42d88004d7f7.png
ffmpeg version N-47062-g26c531c Copyright (c) 2000-2012 the FFmpeg
developers
built on Nov 25 2012 12:21:26 with gcc 4.7.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-pthreads
--enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-
frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-
amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-
libnut --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
libschroedinger --enable-libspeex --enable-libtheora --enable-libutvideo
--enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-
libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 9.100 / 52. 9.100
libavcodec 54. 77.100 / 54. 77.100
libavformat 54. 37.100 / 54. 37.100
libavdevice 54. 3.100 / 54. 3.100
libavfilter 3. 23.102 / 3. 23.102
libswscale 2. 1.102 / 2. 1.102
libswresample 0. 17.101 / 0. 17.101
libpostproc 52. 2.100 / 52. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'78d04424cb944fe6bf8a42d88004d7f7.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf54.37.100
Duration: 00:00:01.44, start: 0.000000, bitrate: 198 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
404x320, 191 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
Metadata:
handler_name : VideoHandler
Output #0, image2, to '78d04424cb944fe6bf8a42d88004d7f7.png':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf54.37.100
Stream #0:0(und): Video: png, rgb24, 404x320, q=2-31, 200 kb/s, 90k tbn,
25 tbc
Metadata:
handler_name : VideoHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> png)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=
0.0kbits/s
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead nan%
Output file is empty, nothing was encoded (check -ss / -t / -frames
parameters if used)
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1992>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
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