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  1. 16 Apr, 2019 4 commits
  3. 15 Apr, 2019 10 commits
  5. 14 Apr, 2019 4 commits
  7. 13 Apr, 2019 3 commits
  9. 11 Apr, 2019 9 commits
  11. 10 Apr, 2019 5 commits
  13. 09 Apr, 2019 5 commits
    • Lynne's avatar
      aarch64/opusdsp: implement NEON accelerated postfilter and deemphasis · 4d2f6215
      Lynne authored 
      153372 UNITS in postfilter_c,   65536 runs,      0 skips
73164 UNITS in postfilter_neon,   65536 runs,      0 skips -> 2.1x speedup

80591 UNITS in deemphasis_c,  131072 runs,      0 skips
43969 UNITS in deemphasis_neon,  131072 runs,      0 skips -> 1.83x speedup

Total decoder speedup: ~15% on a Raspberry Pi 3 (from 28.1x to 33.5x realtime)

Deemphasis SIMD based on the following unrolling:
const float c1 = CELT_EMPH_COEFF, c2 = c1*c1, c3 = c2*c1, c4 = c3*c1;
float state = coeff;

for (int i = 0; i < len; i += 4) {
    y[0] = x[0] + c1*state;
    y[1] = x[1] + c2*state + c1*x[0];
    y[2] = x[2] + c3*state + c1*x[1] + c2*x[0];
    y[3] = x[3] + c4*state + c1*x[2] + c2*x[1] + c3*x[0];

    state = y[3];
    y += 4;
    x += 4;
}

Unlike the x86 version, duplication is used instead of pslldq so
the structure and tables are different.
      4d2f6215
    • Jarek Samic's avatar
      libavutil/hwcontext_opencl: Fix channel order in format support check · 1c50d61a
      Jarek Samic authored 
      The `opencl_get_plane_format` function was incorrectly determining the
value used to set the image channel order. This resulted in all RGB
pixel formats being set to the `CL_RGBA` pixel format, regardless of
whether or not they actually *were* RGBA.

This patch fixes the issue by using the `offset` and depth of components
rather than the loop index to determine the value of `order`.
Signed-off-by: 's avatarJarek Samic <cldfire3@gmail.com>
Signed-off-by: 's avatarMark Thompson <sw@jkqxz.net>
      1c50d61a
    • Tristan Matthews's avatar
      avformat/matroskaenc: fix leak on error · 1ec777dc
      Tristan Matthews authored 
      Signed-off-by: 's avatarJames Almer <jamrial@gmail.com>
      1ec777dc
    • Carl Eugen Hoyos's avatar
      lavf/movenc: Pass correct pointer to av_log(). · d6a83922
      Carl Eugen Hoyos authored
      d6a83922
    • Jun Zhao's avatar
      lavf/matroskaenc: Fix memory leak after write trailer · 0a347ff4
      Jun Zhao authored 
      Fix memory leak after write trailer for #7827, only store a audio
packet whose buffer has size greater than zero in cur_audio_pkt.

Audio packets with size zero, but with side-data currently lead to
memleaks, in the Matroska muxer, because they are not properly freed:

They are currently put into an AVPacket in the MatroskaMuxContext to
ensure that the necessary audio is always available for a new cluster,
but are only written and freed when their size is > 0.

As the only use we have for such packets consists in updating the
CodecPrivate it makes no sense to store these packets at all and this
is how this commit solves the memleak.
Signed-off-by: 's avatarAndreas Rheinhardt <andreas.rheinhardt@googlemail.com>
Signed-off-by: 's avatarJun Zhao <barryjzhao@tencent.com>
      0a347ff4