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b556b08668
Adds a field to EncoderInfo called preferred_pixel_formats which a software encoder populates with the pixel formats it supports. When a kNative frame is received for encoding, the VideoStreamEncoder will first try to get a frame that is accessible by the software encoder in that pixel format from the kNative frame. If this fails it will fallback to converting the frame using ToI420. This minimizes the number of conversions made in the case that the encoder supports the pixel format of the native buffer or where conversion can be accelerated. For example, in Chromium, the capturer can emit an NV12 frame, which can be consumed by libvpx which supports NV12. Testing: Tested in Chrome with media::VideoFrame adapters. Bug: webrtc:11977 Change-Id: I9becc4100136b0c0128f4fa06dedf9ee4dc62f37 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/187121 Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Markus Handell <handellm@webrtc.org> Commit-Queue: Evan Shrubsole <eshr@google.com> Cr-Commit-Position: refs/heads/master@{#32353}
24 lines
796 B
C++
24 lines
796 B
C++
/*
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* Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef API_VIDEO_VIDEO_CODEC_CONSTANTS_H_
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#define API_VIDEO_VIDEO_CODEC_CONSTANTS_H_
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namespace webrtc {
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enum : int { kMaxEncoderBuffers = 8 };
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enum : int { kMaxSimulcastStreams = 3 };
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enum : int { kMaxSpatialLayers = 5 };
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enum : int { kMaxTemporalStreams = 4 };
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enum : int { kMaxPreferredPixelFormats = 5 };
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} // namespace webrtc
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#endif // API_VIDEO_VIDEO_CODEC_CONSTANTS_H_
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