[FFmpeg-user] Can't make video filter drawtext accept command from multi media filter zmq

[Thomas Seilund]

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 at 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 at t420:~/video/test$

I run the command while I have this ffmpeg instance running:

tps at 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Use -pix_fmt yuv420p for compatibility with outdated media players.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

Thanks

Thomas S