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Calculate bitrate and frame rate mismatches in video codec tests

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Bug: webrtc:10812
Change-Id: I3408c0d7adefc37d088a5c6e10fce4f95aa1b668
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/228943
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34782}
This commit is contained in:
Sergey Silkin 2021-08-17 11:39:37 +02:00 committed by WebRTC LUCI CQ
parent 773a222667
commit 1fdafaeb21
3 changed files with 14 additions and 2 deletions
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3
api/test/videocodec_test_stats.cc
View File

@ -91,6 +91,9 @@ std::map<std::string, std::string> VideoCodecTestStats::VideoStatistics::ToMap()
map["max_delta_frame_delay_sec"] = std::to_string(max_delta_frame_delay_sec);
map["time_to_reach_target_bitrate_sec"] =
std::to_string(time_to_reach_target_bitrate_sec);
map["avg_bitrate_mismatch_pct"] = std::to_string(avg_bitrate_mismatch_pct);
map["avg_framerate_mismatch_pct"] =
std::to_string(avg_framerate_mismatch_pct);
map["avg_key_frame_size_bytes"] = std::to_string(avg_key_frame_size_bytes);
map["avg_delta_frame_size_bytes"] =
std::to_string(avg_delta_frame_size_bytes);

2
api/test/videocodec_test_stats.h
View File

@ -105,6 +105,8 @@ class VideoCodecTestStats {
float max_key_frame_delay_sec = 0.0f;
float max_delta_frame_delay_sec = 0.0f;
float time_to_reach_target_bitrate_sec = 0.0f;
float avg_bitrate_mismatch_pct = 0.0f;
float avg_framerate_mismatch_pct = 0.0f;
float avg_key_frame_size_bytes = 0.0f;
float avg_delta_frame_size_bytes = 0.0f;

11
modules/video_coding/codecs/test/videocodec_test_stats_impl.cc
View File

@ -202,6 +202,7 @@ VideoStatistics VideoCodecTestStatsImpl::SliceAndCalcVideoStatistic(
const size_t target_bitrate_kbps =
CalcLayerTargetBitrateKbps(first_frame_num, last_frame_num, spatial_idx,
temporal_idx, aggregate_independent_layers);
const size_t target_bitrate_bps = 1000 * target_bitrate_kbps;
RTC_CHECK_GT(target_bitrate_kbps, 0); // We divide by `target_bitrate_kbps`.
for (size_t frame_num = first_frame_num; frame_num <= last_frame_num;
@ -313,8 +314,8 @@ VideoStatistics VideoCodecTestStatsImpl::SliceAndCalcVideoStatistic(
video_stat.temporal_idx = temporal_idx;
RTC_CHECK_GT(duration_sec, 0);
video_stat.bitrate_kbps =
static_cast<size_t>(8 * video_stat.length_bytes / 1000 / duration_sec);
const float bitrate_bps = 8 * video_stat.length_bytes / duration_sec;
video_stat.bitrate_kbps = static_cast<size_t>((bitrate_bps + 500) / 1000);
video_stat.framerate_fps = video_stat.num_encoded_frames / duration_sec;
// http://bugs.webrtc.org/10400: On Windows, we only get millisecond
@ -340,6 +341,12 @@ VideoStatistics VideoCodecTestStatsImpl::SliceAndCalcVideoStatistic(
video_stat.max_key_frame_delay_sec = MaxDelaySec(key_frame_size_bytes);
video_stat.max_delta_frame_delay_sec = MaxDelaySec(key_frame_size_bytes);
video_stat.avg_bitrate_mismatch_pct =
100 * (bitrate_bps - target_bitrate_bps) / target_bitrate_bps;
video_stat.avg_framerate_mismatch_pct =
100 * (video_stat.framerate_fps - input_framerate_fps) /
input_framerate_fps;
video_stat.avg_key_frame_size_bytes =
key_frame_size_bytes.GetMean().value_or(0);
video_stat.avg_delta_frame_size_bytes =