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I split this (http://www.auby.no/files/video_tests/h264_720p_mp_3.1_3mbps_aac_shrinkage.mp4) video using mp4box command "MP4Box -split 1 shrinking.mp4" into slices of 1 second each. I have following questions:
I got different sizes of the video although I sliced it evenly at 1 second. Not sure how this happened?
When I try to dump the information about the video slice file, I get the below message with an error. Can someone please help me understand what it is, and how possibly I can modify the command above to get rid of it? This error occurs for every video slide generated. This error comes only on the sliced videos.
Thanks, /anil.
anilj@desk1:~/workspace/testprogs/shellscripts$ ffmpeg -i invideo/shrinking_01.mp4
ffmpeg version N-36083-g2501f93-xuggle-5.5 Copyright (c) 2000-2012 the FFmpeg developers
built on Jun 3 2014 13:43:04 with gcc 4.6.4
configuration: --prefix=/home/anilj/workspace/xugglehome --extra-version=xuggle-5.5 --extra-cflags=-I/home/anilj/workspace/xuggle-xuggler/build/native/x86_64-unknown-linux-gnu/captive/stage/home/anilj/workspace/xugglehome/include --extra-ldflags=-L/home/anilj/workspace/xuggle-xuggler/build/native/x86_64-unknown-linux-gnu/captive/stage/home/anilj/workspace/xugglehome/lib --disable-shared --enable-pic --enable-gpl --enable-nonfree --enable-libx264 --enable-version3 --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libvo-aacenc --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-openssl --enable-zlib --enable-libvpx
libavutil 51. 46.100 / 51. 46.100
libavcodec 54. 14.101 / 54. 14.101
libavformat 54. 3.100 / 54. 3.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 67.101 / 2. 67.101
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 10.100 / 0. 10.100
libpostproc 52. 0.100 / 52. 0.100
[h264 @ 0x1ddeac0] Missing reference picture
[h264 @ 0x1ddeac0] decode_slice_header error
[h264 @ 0x1ddeac0] Missing reference picture
[h264 @ 0x1ddeac0] decode_slice_header error
[h264 @ 0x1ddeac0] Missing reference picture
[h264 @ 0x1ddeac0] decode_slice_header error
[h264 @ 0x1ddeac0] Missing reference picture
[h264 @ 0x1ddeac0] decode_slice_header error
[h264 @ 0x1ddeac0] concealing 3600 DC, 3600 AC, 3600 MV errors
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'invideo/shrinking_01.mp4':
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2014-06-19 20:21:02
Duration: 00:00:00.90, start: 0.000000, bitrate: 38 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 30 kb/s, 29.96 fps, 29.96 tbr, 29956 tbn, 59.92 tbc
Metadata:
creation_time : 2011-05-05 18:09:35
handler_name : ?Apple Video Media Handler
At least one output file must be specified
Since I am using MP4Box, I would like to stick to the MP4Box command line options. However, what ffmpeg command should I be using to achieve same segmentation? I am fine with not so close 1 sec segments.
Do you think I am missing anything on MP4Box? Anyone knows about it? – AnilJ – 2014-06-25T08:15:29.200