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• ffmpeg - Use filter in android

  12 décembre 2013, par kikuchi

  I'm trying to use the movie filter in my android project with ffmpeg. I use a fork of the guardian project : Cheers-dev

  It use a recent version of ffmpeg ( 15 days old atm). I added the option --enable-filter=movie to activate the filter.

  I use this command line in my android project :

  ffmpeg -i input.mp4 -vf "movie=watermark.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]" -strict -2 outputvideo.mp4

  It perfectly works with my desktop version on Debian Wheezy. But it's impossible to make it work on my Android. All other commands works.

  Here the error when it fails : No such filter: 'movie'.

  I also tested with the option -filter_complex with a somewhat different error :

  $ ffmpeg -y -loglevel debug -i /storage/sdcard0/test/hsgjr_export.mp4 -i /storage/sdcard0/test/watermark.png -filter_complex "[0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out]" -map [out] -map 0:a -codec:a copy /storage/sdcard0/test/hsgjr_watermark.mp4
  
  
  
  ffmpeg version N-58429-gccdfa3e Copyright (c) 2000-2013 the FFmpeg developers
  
  built on Dec 10 2013 01:12:39 with gcc 4.4.3 (GCC)
  
  configuration: --arch=arm --cpu=cortex-a8 --target-os=linux --enable-runtime-cpudetect --prefix=/data/data/info.guardianproject.ffmpeg/app_opt --enable-pic --disable-shared --enable-static --cross-prefix=/opt/android/ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi- --sysroot=/opt/android/ndk-r8/platforms/android-14/arch-arm --extra-cflags='-I../x264 -I/Android/cheers/android-ffmpeg/data/data/info.guardianproject.ffmpeg/app_opt/include -mfloat-abi=softfp -mfpu=neon' --extra-ldflags='-L../x264 -L/Android/cheers/android-ffmpeg/data/data/info.guardianproject.ffmpeg/app_opt/lib' --enable-version3 --enable-gpl --enable-yasm --enable-decoders --enable-encoders --enable-muxers --enable-demuxers --enable-parsers --enable-protocols --enable-filter=movie --enable-avresample --enable-libvorbis --disable-indevs --enable-indev=lavfi
  
  libavutil      52. 54.100 / 52. 54.100
  
  libavcodec     55. 44.100 / 55. 44.100
  
  libavformat    55. 21.101 / 55. 21.101
  
  libavdevice    55.  5.100 / 55.  5.100
  
  libavfilter     3. 91.100 /  3. 91.100
  
  libavresample   1.  1.  0 /  1.  1.  0
  
  libswscale      2.  5.101 /  2.  5.101
  
  libswresample   0. 17.104 /  0. 17.104
  
  libpostproc    52.  3.100 / 52.  3.100
  
  Splitting the commandline.
  
  Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
  
  Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
  
  Reading option '-i' ... matched as input file with argument '/storage/sdcard0/test/hsgjr_export.mp4'.
  
  Reading option '-i' ... matched as input file with argument '/storage/sdcard0/test/watermark.png'.
  
  Reading option '-filter_complex' ... matched as option 'filter_complex' (create a complex filtergraph) with argument '"[0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out]"'.
  
  Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '[out]'.
  
  Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '0:a'.
  
  Reading option '-codec:a' ... matched as option 'codec' (codec name) with argument 'copy'.
  
  Reading option '/storage/sdcard0/test/hsgjr_watermark.mp4' ... matched as output file.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option y (overwrite output files) with argument 1.
  
  Applying option loglevel (set logging level) with argument debug.
  
  Applying option filter_complex (create a complex filtergraph) with argument "[0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out]".
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input file /storage/sdcard0/test/hsgjr_export.mp4.
  
  Successfully parsed a group of options.
  
  Opening an input file: /storage/sdcard0/test/hsgjr_export.mp4.
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1274cd0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1274cd0] ISO: File Type Major Brand: isom
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1274cd0] File position before avformat_find_stream_info() is 1196725
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1274cd0] All info found
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1274cd0] File position after avformat_find_stream_info() is 30451
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/sdcard0/test/hsgjr_export.mp4':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  encoder         : Lavf55.21.101
  
  Duration: 00:00:00.96, start: 0.000000, bitrate: 9972 kb/s
  
  Stream #0:0(und), 1, 1/1200000: Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 1/2400000, 9830 kb/s, 25 fps, 25 tbr, 1200k tbn, 2400k tbc (default)
  
  Metadata:
  
  handler_name    : VideoHandler
  
  Stream #0:1(und), 1, 1/48000: Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
  
  Metadata:
  
  handler_name    : SoundHandler
  
  Successfully opened the file.
  
  Parsing a group of options: input file /storage/sdcard0/test/watermark.png.
  
  Successfully parsed a group of options.
  
  Opening an input file: /storage/sdcard0/test/watermark.png.
  
  [AVIOContext @ 0x12870f0] Statistics: 26515 bytes read, 0 seeks
  
  Input #1, image2, from '/storage/sdcard0/test/watermark.png':
  
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
  
  Stream #1:0, 1, 1/25: Video: png, rgba, 400x170, 1/25, 25 tbr, 25 tbn, 25 tbc
  
  Successfully opened the file.
  
  Parsing a group of options: output file /storage/sdcard0/test/hsgjr_watermark.mp4.
  
  Applying option map (set input stream mapping) with argument [out].
  
  Applying option map (set input stream mapping) with argument 0:a.
  
  Applying option codec:a (codec name) with argument copy.
  
  Successfully parsed a group of options.
  
  Opening an output file: /storage/sdcard0/test/hsgjr_watermark.mp4.
  
  [AVFilterGraph @ 0x127d5f0] No such filter: '"'
  
  Error configuring filters.
  
  [AVIOContext @ 0x127d2b0] Statistics: 67296 bytes read, 2 seeks

  The output is better than the previous one but I think I'm missing something.

  SOLUTION : I removed the quote from the filter_complex argument and it worked.

  Here is the working command :

  $ ffmpeg -y -i /storage/sdcard0/test/hsgjr_export.mp4 -i /storage/sdcard0/test/watermark.png -filter_complex [0:v][1:v]overlay=main_w-overlay_w-10:main_h-overlay_h-10[out] -map [out] -map 0:a -codec:a copy /storage/sdcard0/test/hsgjr_watermark.mp4

• Screen recording for a specific area in Android application

  19 mars 2016, par Razor

  I need to record a video within a moving rectangular area on the image.

  Now I simply create bitmaps for each frame while moving the rectangle. Then I pick a video file from images using ffmpeg.

  This requires a lot of time and memory especially for temporary storage of frames (about 100MB for 5s video).

  Is there a quick and easy way for this purpose ?

• arm : vp9 : Add NEON optimizations of VP9 MC functions

  3 novembre 2016, par Martin Storsjö

  arm : vp9 : Add NEON optimizations of VP9 MC functions
  This work is sponsored by, and copyright, Google.
  The filter coefficients are signed values, where the product of the
  
  multiplication with one individual filter coefficient doesn’t
  
  overflow a 16 bit signed value (the largest filter coefficient is
  
  127). But when the products are accumulated, the resulting sum can
  
  overflow the 16 bit signed range. Instead of accumulating in 32 bit,
  
  we accumulate the largest product (either index 3 or 4) last with a
  
  saturated addition.
  (The VP8 MC asm does something similar, but slightly simpler, by
  
  accumulating each half of the filter separately. In the VP9 MC
  
  filters, each half of the filter can also overflow though, so the
  
  largest component has to be handled individually.)
  Examples of relative speedup compared to the C version, from checkasm :
  
                         Cortex      A7     A8     A9    A53
  
  vp9_avg4_neon :                   1.71   1.15   1.42   1.49
  
  vp9_avg8_neon :                   2.51   3.63   3.14   2.58
  
  vp9_avg16_neon :                  2.95   6.76   3.01   2.84
  
  vp9_avg32_neon :                  3.29   6.64   2.85   3.00
  
  vp9_avg64_neon :                  3.47   6.67   3.14   2.80
  
  vp9_avg_8tap_smooth_4h_neon :     3.22   4.73   2.76   4.67
  
  vp9_avg_8tap_smooth_4hv_neon :    3.67   4.76   3.28   4.71
  
  vp9_avg_8tap_smooth_4v_neon :     5.52   7.60   4.60   6.31
  
  vp9_avg_8tap_smooth_8h_neon :     6.22   9.04   5.12   9.32
  
  vp9_avg_8tap_smooth_8hv_neon :    6.38   8.21   5.72   8.17
  
  vp9_avg_8tap_smooth_8v_neon :     9.22  12.66   8.15  11.10
  
  vp9_avg_8tap_smooth_64h_neon :    7.02  10.23   5.54  11.58
  
  vp9_avg_8tap_smooth_64hv_neon :   6.76   9.46   5.93   9.40
  
  vp9_avg_8tap_smooth_64v_neon :   10.76  14.13   9.46  13.37
  
  vp9_put4_neon :                   1.11   1.47   1.00   1.21
  
  vp9_put8_neon :                   1.23   2.17   1.94   1.48
  
  vp9_put16_neon :                  1.63   4.02   1.73   1.97
  
  vp9_put32_neon :                  1.56   4.92   2.00   1.96
  
  vp9_put64_neon :                  2.10   5.28   2.03   2.35
  
  vp9_put_8tap_smooth_4h_neon :     3.11   4.35   2.63   4.35
  
  vp9_put_8tap_smooth_4hv_neon :    3.67   4.69   3.25   4.71
  
  vp9_put_8tap_smooth_4v_neon :     5.45   7.27   4.49   6.52
  
  vp9_put_8tap_smooth_8h_neon :     5.97   8.18   4.81   8.56
  
  vp9_put_8tap_smooth_8hv_neon :    6.39   7.90   5.64   8.15
  
  vp9_put_8tap_smooth_8v_neon :     9.03  11.84   8.07  11.51
  
  vp9_put_8tap_smooth_64h_neon :    6.78   9.48   4.88  10.89
  
  vp9_put_8tap_smooth_64hv_neon :   6.99   8.87   5.94   9.56
  
  vp9_put_8tap_smooth_64v_neon :   10.69  13.30   9.43  14.34
  For the larger 8tap filters, the speedup vs C code is around 5-14x.
  This is significantly faster than libvpx’s implementation of the same
  
  functions, at least when comparing the put_8tap_smooth_64 functions
  
  (compared to vpx_convolve8_horiz_neon and vpx_convolve8_vert_neon from
  
  libvpx).
  Absolute runtimes from checkasm :
  
                            Cortex      A7        A8        A9       A53
  
  vp9_put_8tap_smooth_64h_neon :    20150.3   14489.4   19733.6   10863.7
  
  libvpx vpx_convolve8_horiz_neon : 52623.3   19736.4   21907.7   25027.7
  vp9_put_8tap_smooth_64v_neon :    14455.0   12303.9   13746.4    9628.9
  
  libvpx vpx_convolve8_vert_neon :  42090.0   17706.2   17659.9   16941.2
  Thus, on the A9, the horizontal filter is only marginally faster than
  
  libvpx, while our version is significantly faster on the other cores,
  
  and the vertical filter is significantly faster on all cores. The
  
  difference is especially large on the A7.
  The libvpx implementation does the accumulation in 32 bit, which
  
  probably explains most of the differences.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DBH] libavcodec/arm/Makefile
  • [DBH] libavcodec/arm/vp9dsp_init_arm.c
  • [DBH] libavcodec/arm/vp9mc_neon.S
  • [DBH] libavcodec/vp9.h
  • [DBH] libavcodec/vp9block.c
  • [DBH] libavcodec/vp9dsp.c