[FFmpeg-user] trying to add a color screen to a radio input

[JULIAN GARDNER]

>________________________________
> From: JULIAN GARDNER <joolzg at btinternet.com>
>To: F Fmpeg user questions andRTFMs <ffmpeg-user at ffmpeg.org> 
>Sent: Saturday, 16 March 2013, 23:45
>Subject: [FFmpeg-user] trying to add a color screen to a radio input
> 
>I have this running on an old version 33000, but on a newer build i get 1000 fps+
>
>my command line for the old one is
>
>-i "http://http-live.sr.se/p1-mp3-192'; -metadata service_name="SVT P1" -f lavfi -i color=black:qcif:25 -vcodec libx264 -preset faster -x264opts keyint=75:bitrate=100 -bufsize 1M -r 25 -acodec libfaac -ab 128k -ar 32k -ac 2 -f mpegts "udp://225.170.150.32:1234?pkt_size=1316;buffer_size=1048576"
>
>This works, but running this on a new ffmpeg i get fps over 1000 for the above, now i changed this to 
>
>So i change a test one to 
>
>ffmpeg -i "http://bbcmedia.ic.llnwd.net/stream/bbcmedia_intl_lc_radio1_p?s=1361437907&e=1361452307&h=69ffe22fd4569876fc2ecba42df034d9"; -metadata service_name="BBC Radio 1" -f lavfi -i color=r=25 -vcodec libx264 -preset faster -x264opts keyint=75:bitrate=100 -bufsize 1M -r 25 -acodec libfaac -ab 128k -ar 32k -ac 2 -f mpegts "udp://225.170.200.32:1234?pkt_size=1316;buffer_size=1048576"
>
>and the output is
>
>ffmpeg version N-50481-ge228270 Copyright (c) 2000-2013 the FFmpeg developers
>  built on Mar  5 2013 10:29:56 with gcc 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
>  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libx264
>  libavutil      52. 17.103 / 52. 17.103
>  libavcodec     54. 92.100 / 54. 92.100
>  libavformat    54. 63.102 / 54. 63.102
>  libavdevice    54.  3.103 / 54.  3.103
>  libavfilter     3. 41.100 /  3. 41.100
>  libswscale      2.  2.100 /  2.  2.100
>  libswresample   0. 17.102 /  0. 17.102
>  libpostproc    52.  2.100 / 52.  2.100
>[aac @ 0x190b960] max_analyze_duration 5000000 reached at 5024000 microseconds
>[aac @ 0x190b960] Estimating duration from bitrate, this may be inaccurate
>Input #0, aac, from 'http://bbcmedia.ic.llnwd.net/stream/bbcmedia_intl_lc_radio1_p?s=1361437907&e=1361452307&h=69ffe22fd4569876fc2ecba42df034d9';:
>  Duration: N/A, bitrate: 55 kb/s
>    Stream #0:0: Audio: aac, 32000 Hz, stereo, fltp, 55 kb/s
>[lavfi @ 0x191fb80] Estimating duration from bitrate, this may be inaccurate
>Input #1, lavfi, from 'color=r=25':
>  Duration: N/A, start: 0.000000, bitrate: N/A
>    Stream #1:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
>[libx264 @ 0x1921a40] VBV maxrate unspecified, assuming CBR
>[libx264 @ 0x1921a40] using SAR=1/1
>[libx264 @ 0x1921a40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
>[libx264 @ 0x1921a40] profile High, level 1.3
>Output #0, mpegts, to 'udp://225.170.200.32:1234?pkt_size=1316;buffer_size=1048576':
>  Metadata:
>    encoder         : Lavf54.63.102
>    Stream #0:0: Video: h264, yuv420p, 320x240 [SAR 1:1 DAR 4:3], q=-1--1, 100 kb/s, 90k tbn, 25 tbc
>    Stream #0:1: Audio: aac, 32000 Hz, stereo, s16, 128 kb/s
>Stream mapping:
>  Stream #1:0 -> #0:0 (rawvideo -> libx264)
>  Stream #0:0 -> #0:1 (aac -> libfaac)
>Press [q] to stop, [?] for help
>frame= 4209 fps=869 q=32766.0 Lsize=    1036kB time=00:02:48.28 bitrate=  50.4kbits/s    
>video:76kB audio:193kB subtitle:0 global headers:0kB muxing overhead 284.644791%
>[libx264 @ 0x1921a40] frame I:57    Avg QP: 0.00  size:   118
>[libx264 @ 0x1921a40] frame P:1066  Avg QP: 0.00  size:    19
>[libx264 @ 0x1921a40] frame B:3086  Avg QP: 0.02  size:    17
>[libx264 @ 0x1921a40] consecutive B-frames:  1.4%  2.7%  0.0% 96.0%
>[libx264 @ 0x1921a40] mb I  I16..4: 99.7%  0.0%  0.3%
>[libx264 @ 0x1921a40] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip:100.0%
>[libx264 @ 0x1921a40] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.0%  0.0%  0.0%  direct: 0.0%  skip:100.0%
>[libx264 @ 0x1921a40] 8x8 transform intra:0.0%
>[libx264 @ 0x1921a40] coded y,uvDC,uvAC intra: 0.1% 0.0% 0.0% inter: 0.0% 0.0% 0.0%
>[libx264 @ 0x1921a40] i16 v,h,dc,p: 94%  0%  6%  0%
>[libx264 @ 0x1921a40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu:  0%  0% 100%  0%  0%  0%  0%  0%  0%
>[libx264 @ 0x1921a40] i8c dc,h,v,p: 100%  0%  0%  0%
>[libx264 @ 0x1921a40] Weighted P-Frames: Y:0.0% UV:0.0%
>[libx264 @ 0x1921a40] kb/s:3.72
>
>Im still getting over 900 fps, any ideas?
>
>joolz
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>

Anybody help?

I have just tried mandlbrot and life and with a =rate=25 in each, get 700 and 300 fps for each.

So it would seem that the rate does not work, or am i doing something wrong.

joolz