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VP9 codec controls for screensharing

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Telling the encoder to adjust the parameters for the screen content.
Also, telling the encoder to skip the encoding of very flat/low content blocks. For now only for screensharing. (number 8 in VP8E_SET_STATIC_THRESHOLD is correct)

Review URL: https://codereview.webrtc.org/1308753006

Cr-Commit-Position: refs/heads/master@{#9860}
This commit is contained in:
ivica
2015-09-04 06:13:23 -07:00
committed by Commit bot
parent 318673cf5a
commit 242d6384c4
1 changed files with 7 additions and 0 deletions
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7
webrtc/modules/video_coding/codecs/vp9/vp9_impl.cc
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@ -404,6 +404,13 @@ int VP9EncoderImpl::InitAndSetControlSettings(const VideoCodec* inst) {
vpx_codec_control(encoder_, VP9E_SET_NOISE_SENSITIVITY,
inst->codecSpecific.VP9.denoisingOn ? 1 : 0);
#endif
if (codec_.mode == kScreensharing) {
// Adjust internal parameters to screen content.
vpx_codec_control(encoder_, VP9E_SET_TUNE_CONTENT, 1);
// Let the encoder skip the encoding of very flat/low content blocks.
vpx_codec_control(encoder_, VP8E_SET_STATIC_THRESHOLD, 1);
}
inited_ = true;
return WEBRTC_VIDEO_CODEC_OK;
}