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Add resolution bitrate thresholds to EncoderInfo.

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When provided, these thresholds will be used instead of WebRTC default
limits specified in DropDueToSize() and GetMaxDefaultVideoBitrateKbps().

Bug: none
Change-Id: Ida45ea832041963b8b8475d69114b5c60a172fb7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/142170
Commit-Queue: Sergey Silkin <ssilkin@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Alex Glaznev <glaznev@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28390}
This commit is contained in:
Sergey Silkin
2019-06-26 14:11:03 +02:00
committed by Commit Bot
parent 2644a703cc
commit be0adee768
8 changed files with 214 additions and 1 deletions
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23
api/video_codecs/video_encoder.h
View File

@ -122,6 +122,26 @@ class RTC_EXPORT VideoEncoder {
ScalingSettings();
};
// Bitrate thresholds for resolution.
struct ResolutionBitrateThresholds {
ResolutionBitrateThresholds(int frame_size_pixels,
int min_start_bitrate_bps,
int min_bitrate_bps,
int max_bitrate_bps)
: frame_size_pixels(frame_size_pixels),
min_start_bitrate_bps(min_start_bitrate_bps),
min_bitrate_bps(min_bitrate_bps),
max_bitrate_bps(max_bitrate_bps) {}
// Size of video frame, in pixels, the bitrate thresholds are intended for.
int frame_size_pixels = 0;
// Recommended minimum bitrate to start encoding.
int min_start_bitrate_bps = 0;
// Recommended minimum bitrate.
int min_bitrate_bps = 0;
// Recommended maximum bitrate.
int max_bitrate_bps = 0;
};
// Struct containing metadata about the encoder implementing this interface.
struct EncoderInfo {
static constexpr uint8_t kMaxFramerateFraction =
@ -192,6 +212,9 @@ class RTC_EXPORT VideoEncoder {
// with a 100% frame rate fraction.
absl::InlinedVector<uint8_t, kMaxTemporalStreams>
fps_allocation[kMaxSpatialLayers];
// Recommended bitrate thresholds for different resolutions.
std::vector<ResolutionBitrateThresholds> resolution_bitrate_thresholds;
};
struct RateControlParameters {