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Throttle frame-rate In VP8 encoder in steady state for screenshare

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If minQP is reached and encoder undershoot consistently, we consider the
quality good enough and throttle encode frame rate.

Bug: webrtc:10310
Change-Id: Ifd07280040dd67ef6e544efdd4619d47bff951e8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/125461
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27003}
This commit is contained in:
Ilya Nikolaevskiy
2019-03-06 16:40:42 +01:00
committed by Commit Bot
parent 2ecc8c8be2
commit 7b41225156
4 changed files with 156 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
modules/video_coding/video_codec_initializer.cc
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@ -86,6 +86,7 @@ VideoCodec VideoCodecInitializer::VideoEncoderConfigToVideoCodec(
kDefaultOutlierFrameSizePercent};
RTC_DCHECK_LE(streams.size(), kMaxSimulcastStreams);
int max_framerate = 0;
for (size_t i = 0; i < streams.size(); ++i) {
SimulcastStream* sim_stream = &video_codec.simulcastStream[i];
RTC_DCHECK_GT(streams[i].width, 0);
@ -105,6 +106,7 @@ VideoCodec VideoCodecInitializer::VideoEncoderConfigToVideoCodec(
sim_stream->width = static_cast<uint16_t>(streams[i].width);
sim_stream->height = static_cast<uint16_t>(streams[i].height);
sim_stream->maxFramerate = streams[i].max_framerate;
max_framerate = std::max(max_framerate, streams[i].max_framerate);
sim_stream->minBitrate = streams[i].min_bitrate_bps / 1000;
sim_stream->targetBitrate = streams[i].target_bitrate_bps / 1000;
sim_stream->maxBitrate = streams[i].max_bitrate_bps / 1000;
@ -134,8 +136,8 @@ VideoCodec VideoCodecInitializer::VideoEncoderConfigToVideoCodec(
if (video_codec.maxBitrate < kEncoderMinBitrateKbps)
video_codec.maxBitrate = kEncoderMinBitrateKbps;
RTC_DCHECK_GT(streams[0].max_framerate, 0);
video_codec.maxFramerate = streams[0].max_framerate;
RTC_DCHECK_GT(max_framerate, 0);
video_codec.maxFramerate = max_framerate;
// Set codec specific options
if (config.encoder_specific_settings)