[FFmpeg-user] optimal slide encoding for low bandwidth at youtube

[Robert Rowntree]

i want to combine 1 slide ( vid ) and a 3gpp ( audio ) in output that is
suitable for youtube upload. i have a CLI expression working for ffmpeg ,
but its video bandwidth is too high considering that i am muxing just a
single jpeg.

i have used the following , but think that i can do better on the bandwidth
of the VIDEO track...

*./ffmpeg -y -loop_input -f image2 -shortest -r 1/2 -i 1459.JPG -i 1459.3gpp
-s 640x480 -b 100k -bt 240k -vcodec msmpeg4 -acodec libmp3lame -ab 64k -ar
22050  out.wmv*

Once the output from the above is uploaded to youtube, youtube exposes 2
RTSP URI's  - a high and low bandwidth version of the video.

the low bandwidth youtube version still has 39K of video bandwidth and that
is what i want to reduce.... its just a single slide in the video

v=0
o=GoogleStreamer 98636128 107718649 IN IP4 74.125.213.247
s=Video
c=IN IP4 0.0.0.0
b=AS:51
t=0 0
a=control:*
a=range:npt=0-63.800000
m=video 0 RTP/AVP 98
*b=AS:39                           <--  VIDEO bandwidth*
a=rtpmap:98 H263-2000/90000
a=control:trackID=0
a=cliprect:0,0,144,176
a=framesize:98 176-144
a=fmtp:98 profile=0;level=10
m=audio 0 RTP/AVP 99
b=AS:12
a=rtpmap:99 AMR/8000/1
a=control:trackID=1
a=fmtp:99 octet-align
* Connection #0 to host v8.cache8.c.youtube.com left intact

for comparison purpose, the following URI on youtube uses just 8K for its
video bandwidth and i want to try to get down near that.

http://www.youtube.com/watch?v=FX9ccqQuzO4      is a typical sound track
hosted on youtube having the SDP below from the rtsp feed:

v=0
o=GoogleStreamer 515160982 1824503727 IN IP4 74.125.213.247
s=Video
c=IN IP4 0.0.0.0
b=AS:20
t=0 0
a=control:*
a=range:npt=0-190.200000
m=video 0 RTP/AVP 98
*b=AS:8                                       <--- low video bandwidth *
a=rtpmap:98 H263-2000/90000
a=control:trackID=0
a=cliprect:0,0,144,176
a=framesize:98 176-144
a=fmtp:98 profile=0;level=10
m=audio 0 RTP/AVP 99
b=AS:12
a=rtpmap:99 AMR/8000/1
a=control:trackID=1
a=fmtp:99 octet-align