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• FFmpeg drawtext=enable'between(t,0,5)' not working

  24 juillet 2018, par Avani

  I’m trying to draw text on a video at different time intervals using ffmpeg. Below is my instruction :

      ffmpeg -i input.mp4 -vf "drawtext=fontfile='C:\arial.ttf':text='Text1':x=5:y=20Ûmax_glyph_a:fontsize=24:fontcolor=yellow:box=1:boxcolor=black@0.5:boxborderw=5:enable='between(t,0,20)', drawtext=fontfile='C:\arial.ttf':text='Text2':x=100:y=20Ûmax_glyph_a:fontsize=24:fontcolor=yellow:enable='between(t,5,20)', drawtext=fontfile='C:\arial.ttf':text='Text3':x=200:y=20Ûmax_glyph_a:fontsize=24:fontcolor=yellow:enable='between(t,10,20)'" output.mp4

  I’m trying to draw text in a horizontal line and I want only Text1 for the first 5 seconds, and then Text2 starting from 5 seconds to 20 seconds, and Text3 starting from 10 seconds till the end.

  When I do this, my first text stays for about 15 seconds and the last two show up in the last 4 seconds of the video. Is there something wrong with my instruction ? Am I using the enable between correctly ?

  Below is the Log for ffmpeg -i input.mp4 -vf showinfo -vsync 0 -f null - :

      ffmpeg version N-91399-g9f0077cc03 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 7.3.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  
    libavutil      56. 18.102 / 56. 18.102
  
    libavcodec     58. 20.104 / 58. 20.104
  
    libavformat    58. 17.101 / 58. 17.101
  
    libavdevice    58.  4.101 / 58.  4.101
  
    libavfilter     7. 25.100 /  7. 25.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
    libpostproc    55.  2.100 / 55.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'onlyVideo.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2mp41
  
      encoder         : Lavf56.37.100
  
    Duration: 00:00:20.00, start: 0.000000, bitrate: 73 kb/s
  
      Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x720 [SAR 1:1 DAR 8:9], 73 kb/s, 0.20 fps, 0.20 tbr, 16384 tbn, 1 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mpeg4 (native) -> wrapped_avframe (native))
  
  Press [q] to stop, [?] for help
  
  [Parsed_showinfo_0 @ 0000019e4ef73140] config in time_base: 1/16384, frame_rate: 1/5
  
  [Parsed_showinfo_0 @ 0000019e4ef73140] config out time_base: 0/0, frame_rate: 0/0
  
  [Parsed_showinfo_0 @ 0000019e4ef73140] n:   0 pts:      0 pts_time:0       pos:       44 fmt:yuv420p sar:1/1 s:640x720 i:P iskey:1 type:I checksum:850631B2 plane_checksum:[6C2678F8 6C5D6575 C2075336] mean:[191 121 133 ] stdev:[67.7 11.8 8.5 ]
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 17 (1845 bytes)
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 16 (8 bytes)
  
  Output #0, null, to 'pipe:':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2mp41
  
      encoder         : Lavf58.17.101
  
      Stream #0:0(und): Video: wrapped_avframe, yuv420p, 640x720 [SAR 1:1 DAR 8:9], q=2-31, 200 kb/s, 0.20 fps, 0.20 tbn, 0.20 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc58.20.104 wrapped_avframe
  
  [Parsed_showinfo_0 @ 0000019e4ef73140] n:   1 pts:  81920 pts_time:5       pos:    37980 fmt:yuv420p sar:1/1 s:640x720 i:P iskey:0 type:P checksum:D4B0BD28 plane_checksum:[E0310E7B DC71FA0B 97BCB493] mean:[31 127 132 ] stdev:[25.6 28.9 27.1 ]
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 17 (1845 bytes)
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 16 (8 bytes)
  
  frame=    2 fps=0.0 q=-0.0 size=N/A time=00:00:10.00 bitrate=N/A speed=11.1x    
  
  [Parsed_showinfo_0 @ 0000019e4ef73140] n:   2 pts: 163840 pts_time:10      pos:    67732 fmt:yuv420p sar:1/1 s:640x720 i:P iskey:0 type:P checksum:9FC30D4F plane_checksum:[1F10F7EB 45F39329 BED7821D] mean:[60 123 125 ] stdev:[61.8 11.0 5.5 ]
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 17 (1845 bytes)
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 16 (8 bytes)
  
  [Parsed_showinfo_0 @ 0000019e4ef73140] n:   3 pts: 245760 pts_time:15      pos:   133778 fmt:yuv420p sar:1/1 s:640x720 i:P iskey:0 type:P checksum:9F501A92 plane_checksum:[D1B4E4A7 C4CD0DFA EB7E27E2] mean:[162 129 139 ] stdev:[71.7 27.3 37.2 ]
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 17 (1845 bytes)
  
  [Parsed_showinfo_0 @ 0000019e4ef73140]   side data - unknown side data type 16 (8 bytes)
  
  frame=    4 fps=0.0 q=-0.0 Lsize=N/A time=00:00:20.00 bitrate=N/A speed=21.7x    
  
  video:2kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

• avformat/mov : Check default_encrypted_sample before use in mov_read_sample_encryption...

  21 juillet 2018, par Michael Niedermayer

  avformat/mov : Check default_encrypted_sample before use in mov_read_sample_encryption_info()
  Fixes : 2018-0721-sample
  
  Fixes : null pointer dereference
  Found-by : Nikita Knyzhov (knnikita@yandex.ru)
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/mov.c

• how to use ffmpeg with mjpeg_vaapi encoder (with hardware acceleration) ?

  8 août 2018, par Marat

  When I use ffmpeg with mjpeg encoder without hardware acceleration, everything works fine. I use following command :

  ffmpeg -nostdin -rtsp_transport udp_multicast -allowed_media_types 'video' -i 'rtsp://MYIP' -ss 00:00:0.00 -f image2pipe -q:v 24 -vf scale=-2:480,format=yuv420p -c:v mjpeg -vframes 1 pipe:1

  But, when I try to use mjpeg with hardware acceleration, I always get error :

  ffmpeg -nostdin -rtsp_transport udp_multicast -allowed_media_types 'video' -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -hwaccel_output_format vaapi -i 'rtsp://MYIP' -ss 00:00:0.00 -f image2pipe -q:v 24 -vf scale=-2:480,format=yuv420p -c:v mjpeg_vaapi -vframes 1 pipe:1
  
  ffmpeg version N-91514-gc51e0cd Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  
    configuration: --pkg-config-flags=--static
  
    libavutil      56. 18.102 / 56. 18.102
  
    libavcodec     58. 21.106 / 58. 21.106
  
    libavformat    58. 17.101 / 58. 17.101
  
    libavdevice    58.  4.101 / 58.  4.101
  
    libavfilter     7. 26.100 /  7. 26.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
  libva info: VA-API version 0.39.0
  
  libva info: va_getDriverName() returns 0
  
  libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
  
  libva info: Found init function __vaDriverInit_0_39
  
  libva info: va_openDriver() returns 0
  
  Input #0, rtsp, from 'rtsp://MYIP':
  
    Metadata:
  
      title           : Session streamed with GStreamer
  
      comment         : rtsp-server
  
    Duration: N/A, start: 0.180600, bitrate: N/A
  
      Stream #0:0: Video: h264 (Main), yuvj420p(pc, progressive), 800x600, 50 fps, 50 tbr, 90k tbn, 100 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (mjpeg_vaapi))
  
  Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scaler_0'
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Function not implemented
  
  Error while processing the decoded data for stream #0:0
  
  Conversion failed!

  I tried with some additional options but it still keeps failing :

  ffmpeg -nostdin -rtsp_transport udp_multicast -allowed_media_types 'video' -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -hwaccel_output_format vaapi -i 'rtsp://MYIP' -ss 00:00:0.00 -f image2pipe -q:v 24 -vf "scale_vaapi=w=800:h=600" -b:v 700k -r 25 -vcodec mjpeg_vaapi -vframes 1 pipe:1                
  
  ffmpeg version N-91514-gc51e0cd Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  
    configuration: --pkg-config-flags=--static
  
    libavutil      56. 18.102 / 56. 18.102
  
    libavcodec     58. 21.106 / 58. 21.106
  
    libavformat    58. 17.101 / 58. 17.101
  
    libavdevice    58.  4.101 / 58.  4.101
  
    libavfilter     7. 26.100 /  7. 26.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
  libva info: VA-API version 0.39.0
  
  libva info: va_getDriverName() returns 0
  
  libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
  
  libva info: Found init function __vaDriverInit_0_39
  
  libva info: va_openDriver() returns 0
  
  Input #0, rtsp, from 'rtsp://MYIP':
  
    Metadata:
  
      title           : Session streamed with GStreamer
  
      comment         : rtsp-server
  
    Duration: N/A, start: 0.179933, bitrate: N/A
  
      Stream #0:0: Video: h264 (Main), yuvj420p(pc, progressive), 800x600, 50 fps, 50 tbr, 90k tbn, 100 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (mjpeg_vaapi))
  
  [mjpeg_vaapi @ 0x374cd80] Encoding entrypoint not found (12 / 7).
  
  Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  Conversion failed!

  Can please anyone suggest right options to make it work ?