id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed 1581,"No video, when broadcasting via rtmp",vitrums,," == Summary of the bug == RTMP videocasting services such as justin.tv or own3d.tv show LIVE status, when broadcasting via FFmpeg, though no video, but a black screen. == How to reproduce == ''Shell script example:'' INRES=""1920x1080"" OUTRES=""1920x1080"" FPS=""30"" QUAL=""ultrafast"" STREAM_KEY=""YourStreamKeyTypeHere"" URL=""rtmp://live.eu.own3d.tv/live/$STREAM_KEY"" ffmpeg -f x11grab -y -s ""$INRES"" -r ""$FPS"" -i :0.0 -an \ -vcodec libx264 -preset ""$QUAL"" -crf 30 -s ""$OUTRES"" -b:v 1500k \ -f flv ""$URL"" ''Here is the output:'' --- BEGINNING OF THE LOG --- vitrums@vitrums:~/stream$ ffmpeg version git-2012-07-28-a2f91e7 Copyright (c) 2000-2012 the FFmpeg developers built on Jul 28 2012 12:01:28 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5) configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab libavutil 51. 65.100 / 51. 65.100 libavcodec 54. 45.100 / 54. 45.100 libavformat 54. 21.100 / 54. 21.100 libavdevice 54. 2.100 / 54. 2.100 libavfilter 3. 3.100 / 3. 3.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 [x11grab @ 0x36d9440] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1920 height: 1080 [x11grab @ 0x36d9440] shared memory extension found [x11grab @ 0x36d9440] Estimating duration from bitrate, this may be inaccurate Input #0, x11grab, from ':0.0': Duration: N/A, start: 1343479201.360353, bitrate: 1990656 kb/s Stream #0:0: Video: rawvideo (BGR[0] / 0x524742), bgr0, 1920x1080, 1990656 kb/s, 30 tbr, 1000k tbn, 30 tbc [libx264 @ 0x36e6b40] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX [libx264 @ 0x36e6b40] profile High 4:4:4 Predictive, level 4.0, 4:4:4 8-bit [libx264 @ 0x36e6b40] 264 - core 125 r2 d9d2288 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=6 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=30.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0 Output #0, flv, to 'rtmp://live.eu.own3d.tv/live/HIDDEN': Metadata: encoder : Lavf54.21.100 Stream #0:0: Video: h264 ([7][0][0][0] / 0x0007), yuv444p, 1920x1080, q=-1--1, 1500 kb/s, 1k tbn, 30 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> libx264) Press [q] to stop, [?] for help frame= 231 fps= 24 q=32766.0 Lsize= 977kB time=00:00:07.70 bitrate=1039.8kbits/s video:973kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.491404% [libx264 @ 0x36e6b40] frame I:1 Avg QP:27.00 size:268629 [libx264 @ 0x36e6b40] frame P:230 Avg QP:20.46 size: 3159 [libx264 @ 0x36e6b40] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 0x36e6b40] mb P I16..4: 0.3% 0.0% 0.0% P16..4: 1.4% 0.0% 0.0% 0.0% 0.0% skip:98.2% [libx264 @ 0x36e6b40] coded y,u,v intra: 32.4% 14.7% 14.1% inter: 0.7% 0.3% 0.3% [libx264 @ 0x36e6b40] i16 v,h,dc,p: 62% 31% 5% 2% [libx264 @ 0x36e6b40] kb/s:1034.06 --- END OF THE LOG --- AFAIK, the log is fine and no crashes were reported. However if we run the same command with the output method set as: -f flv out.lfv, the locally recorded video would be just fine. We may actually try to send it via rtmp using the following command: ffmpeg -re -i out.flv -c copy -f flv ""$URL"" which would again, give the same result, as if the video was grabbed directly via x11grab. The video is still blank. ",defect,closed,normal,undetermined,unspecified,invalid,,,,,0,1