[FFmpeg-user] Switch "on" Reference Picture Selection (RPS) in the libavcodec/ituh263enc.c Source File

[Rodney Baker]

On Wed, 21 Mar 2012 21:27:19 Oussama Stiti wrote:
> Here is the result of the command line:
> 
> ~$ ffmpeg -i $HOME/Téléchargements/lazy.mp4 -f null -
> ffmpeg version N-38203-g388b7ac Copyright (c) 2000-2012 the FFmpeg
> developers
>   built on Mar  2 2012 23:24:13 with gcc 4.6.2
>   configuration: --enable-libmp3lame --enable-libxvid --enable-libvorbis
> --enable-gpl --enable-libfaac --enable-libtheora --enable-zlib
> --disable-shared --enable-libx264 --enable-libdirac --enable-nonfree
> --enable-version3 --enable-libschroedinger --enable-avfilter
> --enable-libspeex --enable-libopenjpeg --enable-libgsm --enable-postproc
> --enable-pthreads --enable-libopencore-amrnb --enable-libopencore-amrwb
> --enable-ffplay --enable-pthreads --prefix=/usr/local --enable-x11grab
> --enable-runtime-cpudetect --enable-bzlib --enable-libdc1394
> --enable-libvpx libavutil      51. 40.100 / 51. 40.100
>   libavcodec     54.  4.100 / 54.  4.100
>   libavformat    54.  1.100 / 54.  1.100
>   libavdevice    53.  4.100 / 53.  4.100
>   libavfilter     2. 62.101 /  2. 62.101
>   libswscale      2.  1.100 /  2.  1.100
>   libswresample   0.  7.100 /  0.  7.100
>   libpostproc    52.  0.100 / 52.  0.100
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
> '/home/oussama/Téléchargements/lazy.mp4':
>   Metadata:
>     major_brand     : mp42
>     minor_version   : 1
>     compatible_brands: mp42avc1
>     creation_time   : 2011-08-30 21:43:14
>   Duration: 00:03:28.18, start: 0.000000, bitrate: 830 kb/s
>     Stream #0:0(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
> s16, 120 kb/s
>     Metadata:
>       creation_time   : 2011-08-30 21:43:14
>       handler_name    : Apple Sound Media Handler
>     Stream #0:1(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
> 640x480, 704 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc
>     Metadata:
>       creation_time   : 2011-08-30 21:43:14
>       handler_name    : Apple Video Media Handler
> [buffer @ 0xa516ea0] w:640 h:480 pixfmt:yuv420p tb:1/1000000 sar:0/1
> sws_param:
> Output #0, null, to 'pipe:':
>   Metadata:
>     major_brand     : mp42
>     minor_version   : 1
>     compatible_brands: mp42avc1
>     creation_time   : 2011-08-30 21:43:14
>     encoder         : Lavf54.1.100
>     Stream #0:0(eng): Video: rawvideo (I420 / 0x30323449), yuv420p,
> 640x480, q=2-31, 200 kb/s, 90k tbn, 30 tbc
>     Metadata:
>       creation_time   : 2011-08-30 21:43:14
>       handler_name    : Apple Video Media Handler
>     Stream #0:1(eng): Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
>     Metadata:
>       creation_time   : 2011-08-30 21:43:14
>       handler_name    : Apple Sound Media Handler
> Stream mapping:
>   Stream #0:1 -> #0:0 (h264 -> rawvideo)
>   Stream #0:0 -> #0:1 (aac -> pcm_s16le)
> Press [q] to stop, [?] for help
> *[h264 @ 0xa50ab80] Increasing reorder buffer to 1
> frame= 6246 fps=658 q=0.0 Lsize=       0kB time=00:03:28.19 bitrate=
> 0.0kbits/s
> video:0kB audio:35864kB global headers:0kB muxing overhead -100.000000%*
> 
> No more informations.. I want to analyse the video frame by frame. Is it
> possible ?
> 
> 
> O. Stiti

Try ffprobe -show_frames <input_file>

-- 
===================================================
Rodney Baker VK5ZTV
rodney.baker at iinet.net.au
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