On 6/22/15, Thomas Seilund <[email protected]> wrote: > Paul B Mahol writes: > >> On 6/22/15, Thomas Seilund <[email protected]> wrote: >>> Hi All >>> >>> I always get error "38 Function not implemented" when I send command to >>> video filter drawtext. >>> >>> Here is the command I run and the result I get: >>> >>> tps@t420:~/video/test$ echo Parsed_drawtext_1 text AA | >>> /home/tps/data/data/ffmpeg/tools/zmqsend -b tcp://127.0.0.1:5557 >>> 38 Function not implemented >>> tps@t420:~/video/test$ >>> >>> I run the command while I have this ffmpeg instance running: >>> >>> tps@t420:~/video/test$ ffmpeg -loop 1 -i test.png -filter_complex >>> "zmq=bind_address=tcp\\\://127.0.0.1\\\: >>> 5557,drawtext=text=AA:x=50:y=50:fontfile=/usr/share/fonts/truetype/freefont/ >>> >>> FreeMonoBold.ttf" -f mpegts -c libx264 test.ts >>> ffmpeg version N-69238-g2699a37 Copyright (c) 2000-2015 the FFmpeg >>> developers >>> built on Apr 23 2015 17:10:30 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1) >>> configuration: --enable-gpl --enable-libmp3lame --enable-libvpx >>> --enable- >>> >>> libx264 --enable-version3 --enable-libvorbis --enable-libfreetype >>> --enable- >>> >>> libv4l2 --enable-libfdk-aac --enable-nonfree --enable-libpulse --enable- >>> libzmq >>> libavutil 54. 17.100 / 54. 17.100 >>> libavcodec 56. 20.100 / 56. 20.100 >>> libavformat 56. 19.100 / 56. 19.100 >>> libavdevice 56. 4.100 / 56. 4.100 >>> libavfilter 5. 8.101 / 5. 8.101 >>> libswscale 3. 1.101 / 3. 1.101 >>> libswresample 1. 1.100 / 1. 1.100 >>> libpostproc 53. 3.100 / 53. 3.100 >>> Input #0, png_pipe, from 'scoreboard.png': >>> Duration: N/A, bitrate: N/A >>> Stream #0:0: Video: png, pal8, 200x100 [SAR 72:72 DAR 2:1], 25 fps, >>> 25 >>> >>> tbr, 25 tbn, 25 tbc >>> File 'test.ts' already exists. Overwrite ? [y/N] y >>> No pixel format specified, yuv444p for H.264 encoding chosen. >>> Use -pix_fmt yuv420p for compatibility with outdated media players. >>> [libx264 @ 0x2d2c4c0] using SAR=1/1 >>> [libx264 @ 0x2d2c4c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 >>> AVX >>> [libx264 @ 0x2d2c4c0] profile High 4:4:4 Predictive, level 1.1, 4:4:4 >>> 8-bit >>> Output #0, mpegts, to 'test.ts': >>> Metadata: >>> encoder : Lavf56.19.100 >>> Stream #0:0: Video: h264 (libx264), yuv444p, 200x100 [SAR 1:1 DAR >>> 2:1], >>> >>> q=-1--1, 25 fps, 90k tbn, 25 tbc >>> Metadata: >>> encoder : Lavc56.20.100 libx264 >>> Stream mapping: >>> Stream #0:0 (png) -> zmq >>> drawtext -> Stream #0:0 (libx264) >>> Press [q] to stop, [?] for help >>> frame=14512 fps=1948 q=-1.0 Lsize= 2947kB time=00:09:40.40 bitrate= >>> 41.6kbits/s >>> video:351kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB >>> muxing overhead: 739.239502% >>> >>> >>> >>> Any help would be very much appreciated >> >> Looking at code command must be reinit and args are normal args you >> usual give to drawtext filter. >> >> But example with drawtext and zmq should really be added to docs. >> >>> >>> Thanks >>> >>> Thomas S >>> _______________________________________________ >>> ffmpeg-user mailing list >>> [email protected] >>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >>> >> _______________________________________________ >> ffmpeg-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > Hi Paul, > > Thanks a lot - it works - but it is slow !! > > Now I run ffmpeg and pipe to ffplay to see the effect of the command. > > I run this ffmpeg command: > > tps@t420:~/video/test$ ffmpeg -loglevel debug -loop 1 -i test.png - > filter_complex "zmq=bind_address=tcp\\\://127.0.0.1\\\: > 5557,drawtext=text=XX:x=50:y=50:fontfile=/usr/share/fonts/truetype/freefont/ > > FreeMonoBold.ttf" -f mpegts -c libx264 - | ffplay -i - > > And I run this command to change the drawtext filter: > > tps@t420:~/video/test$ echo Parsed_drawtext_1 reinit text=CC | > /home/tps/data/data/ffmpeg/tools/zmqsend -b tcp://127.0.0.1:5557 > > There is a delay of 10+ seconds from I run the command until I see the > effect in ffplay. > > I had hoped for instant effect - can I do something to get instant effect ?
Perhaps encoding and drawing text is not realtime at all? Try encoding with -preset ultrafast > > Thanks for you help > > Thomas S > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
