[FFmpeg-trac] #4999(undetermined:new): Skipping frames for GoPro videos recorder with Ambarella
FFmpeg
trac at avcodec.org
Mon Nov 9 10:57:32 CET 2015
#4999: Skipping frames for GoPro videos recorder with Ambarella
-------------------------------------+-------------------------------------
Reporter: Den-ffmpeg | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Hi! I am trying to work with GoPro videos made by Ambarella AVC. I tried
to convert any video from that camera and output video was lagging.
The problem is old, it was reproduced in version 2.8.1 and has been
existing at least from version 2.2.4
Input and output videos are attached.
How to reproduce:
{{{
ffmpeg -i "D:\videos\h264_gopro_ambarella.mp4" -vcodec h264
"D:\videos\lags_on_output_video.avi"
ffmpeg version 2.8.1 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libbs2b
--enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpe
g --enable-libopus --enable-librtmp --enable-libschroedinger --enable-
libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-
libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-
libvorbis
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
--enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-
decklink --enable-zlib
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
}}}
PS if you try to convert input file (h264_gopro_ambarella.mp4), you will
see some errors in console output. It appeared after I reduced the size of
file to 10 MB. If needed I will send you original file (about 25 MB)
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4999>
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