Have been working with ffmpeg on my HP dc5800 desktop running
Trisquel 5.5 and have encountered a problem.
What I am doing is this, running video and audio from a Logitech
C270 USB camera through ffmpeg to justin.tv
If I run just the video to the justin.tv page the stream will work
flawlessly for as long as I wish.
However if I try to add audio to the stream it will fail with the
following error: DTS 411312205 next 411318601 st:0 invalid
dropping and PTS 411312205 next 411318601 invalid dropping st:0
The stream will usually fail within 5 minutes or less.
Here is the command I am issuing to the server:
ffmpeg -f alsa -ac 1 -i pulse -f video4linux2 -i /dev/video0 -s
1024x576 -vf
drawtext="fontfile=/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-Bold.ttf:
text='\%D \%r': fontcolor=white@1.0: x=30: y=440: fontsize=30:
box=1: boxcolor=black@1.0" -vcodec libx264 -acodec libmp3lame -ab
28k -ar 22050 -vb 350k -f flv rtmp://live.justin.tv/app/live_
Here is my FFMPEG info
ffmpeg -version
ffmpeg version git-2012-07-03-d8013f3
built on Jul 3 2012 18:16:27 with gcc 4.6.1
configuration: --enable-gpl --enable-libfreetype
--enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libtheora --enable-libvorbis
--enable-libvpx --enable-libx264 --enable-nonfree
--enable-version3 --enable-x11grab
libavutil 51. 63.100 / 51. 63.100
libavcodec 54. 32.100 / 54. 32.100
libavformat 54. 14.100 / 54. 14.100
libavdevice 54. 0.100 / 54. 0.100
libavfilter 3. 0.101 / 3. 0.101
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
And a Sample of output data
DTS 411032947, next:411314602 st:0 invalid dropping
PTS 411032947, next:411314602 invalid dropping st:0
DTS 411127066, next:411315935 st:0 invalid dropping
PTS 411127066, next:411315935 invalid dropping st:0
DTS 411220151, next:411317268 st:0 invalid dropping
PTS 411220151, next:411317268 invalid dropping st:0
DTS 411312205, next:411318601 st:0 invalid dropping
PTS 411312205, next:411318601 invalid dropping st:0
Trying to remove 576 samples, but que emptytime=00:17:12.68
bitrate= 347.4kbits/s
frame= 1660 fps=1.2 q=16675933.0 Lsize= 50746kB time=00:19:14.90
bitrate= 360.0kbits/s
video:49371kB audio:1115kB subtitle:0 global headers:0kB muxing
overhead 0.515765%
[libx264 @ 0xa92c840] frame I:7 Avg QP:14.20 size:161374
[libx264 @ 0xa92c840] frame P:422 Avg QP:15.51 size: 65734
[libx264 @ 0xa92c840] frame B:1231 Avg QP:21.55 size: 17617
[libx264 @ 0xa92c840] consecutive B-frames: 0.8% 0.5% 1.6% 97.1%
[libx264 @ 0xa92c840] mb I I16..4: 14.4% 41.1% 44.5%
[libx264 @ 0xa92c840] mb P I16..4: 0.8% 3.8% 0.9% P16..4: 33.2%
20.0% 20.7% 0.0% 0.0% skip:20.7%
[libx264 @ 0xa92c840] mb B I16..4: 0.1% 1.2% 0.2% B16..8: 24.1%
4.9% 2.6% direct:14.2% skip:52.8% L0:46.3% L1:35.0% BI:18.8%
[libx264 @ 0xa92c840] final ratefactor: 15.59
[libx264 @ 0xa92c840] 8x8 transform intra:69.0% inter:50.2%
[libx264 @ 0xa92c840] coded y,uvDC,uvAC intra: 91.3% 94.5% 91.1%
inter: 28.7% 44.7% 29.8%
[libx264 @ 0xa92c840] i16 v,h,dc,p: 20% 23% 9% 47%
[libx264 @ 0xa92c840] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 33% 27%
4% 3% 2% 5% 4% 8%
[libx264 @ 0xa92c840] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 37% 13%
5% 6% 4% 7% 5% 7%
[libx264 @ 0xa92c840] i8c dc,h,v,p: 65% 16% 12% 8%
[libx264 @ 0xa92c840] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0xa92c840] ref P L0: 35.4% 4.0% 41.9% 18.7%
[libx264 @ 0xa92c840] ref B L0: 56.5% 34.0% 9.5%
[libx264 @ 0xa92c840] ref B L1: 86.3% 13.7%
[libx264 @ 0xa92c840] kb/s:320.22
I hope this helps.
I look forward to hearing from you as to what I can do to correct
this.
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