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f5b216a1b7
Prior to this CL, RtpPayloadParams had code that assumed dependency patterns in VP8, in order to write that information into the [Generic Frame Descriptor] RTP extension. This CL starts moving that code out of RtpPayloadParams. Upcoming CLs will migrate additional encoder-wrappers to the new scheme, then remove the deprecated code. Bug: webrtc:10249 Change-Id: I5fc84aedf8e11f79d52b989ff8b7ce9568b6cf32 Reviewed-on: https://webrtc-review.googlesource.com/c/119958 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Reviewed-by: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Elad Alon <eladalon@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26438}
109 lines
3.8 KiB
C++
109 lines
3.8 KiB
C++
/*
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* Copyright (c) 2012 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 MODULES_VIDEO_CODING_INCLUDE_VIDEO_CODEC_INTERFACE_H_
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#define MODULES_VIDEO_CODING_INCLUDE_VIDEO_CODEC_INTERFACE_H_
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#include <vector>
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#include "api/video/video_frame.h"
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#include "api/video_codecs/video_decoder.h"
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#include "api/video_codecs/video_encoder.h"
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#include "common_types.h" // NOLINT(build/include)
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#include "modules/include/module_common_types.h"
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#include "modules/video_coding/include/video_error_codes.h"
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namespace webrtc {
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class RTPFragmentationHeader; // forward declaration
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// Note: If any pointers are added to this struct, it must be fitted
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// with a copy-constructor. See below.
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// Hack alert - the code assumes that thisstruct is memset when constructed.
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struct CodecSpecificInfoVP8 {
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bool nonReference;
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uint8_t temporalIdx;
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bool layerSync;
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int8_t keyIdx; // Negative value to skip keyIdx.
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// Used to generate the list of dependency frames.
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// |referencedBuffers| and |updatedBuffers| contain buffer IDs.
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// Note that the buffer IDs here have a one-to-one mapping with the actual
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// codec buffers, but the exact mapping (i.e. whether 0 refers to Last,
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// to Golden or to Arf) is not pre-determined.
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// More references may be specified than are strictly necessary, but not less.
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// TODO(bugs.webrtc.org/10242): Remove |useExplicitDependencies| once all
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// encoder-wrappers are updated.
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bool useExplicitDependencies;
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static constexpr size_t kBuffersCount = 3;
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size_t referencedBuffers[kBuffersCount];
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size_t referencedBuffersCount;
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size_t updatedBuffers[kBuffersCount];
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size_t updatedBuffersCount;
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};
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static_assert(std::is_pod<CodecSpecificInfoVP8>::value, "");
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// Hack alert - the code assumes that thisstruct is memset when constructed.
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struct CodecSpecificInfoVP9 {
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bool first_frame_in_picture; // First frame, increment picture_id.
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bool inter_pic_predicted; // This layer frame is dependent on previously
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// coded frame(s).
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bool flexible_mode;
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bool ss_data_available;
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bool non_ref_for_inter_layer_pred;
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uint8_t temporal_idx;
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bool temporal_up_switch;
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bool inter_layer_predicted; // Frame is dependent on directly lower spatial
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// layer frame.
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uint8_t gof_idx;
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// SS data.
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size_t num_spatial_layers; // Always populated.
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bool spatial_layer_resolution_present;
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uint16_t width[kMaxVp9NumberOfSpatialLayers];
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uint16_t height[kMaxVp9NumberOfSpatialLayers];
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GofInfoVP9 gof;
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// Frame reference data.
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uint8_t num_ref_pics;
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uint8_t p_diff[kMaxVp9RefPics];
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bool end_of_picture;
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};
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static_assert(std::is_pod<CodecSpecificInfoVP9>::value, "");
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// Hack alert - the code assumes that thisstruct is memset when constructed.
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struct CodecSpecificInfoH264 {
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H264PacketizationMode packetization_mode;
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};
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static_assert(std::is_pod<CodecSpecificInfoH264>::value, "");
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union CodecSpecificInfoUnion {
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CodecSpecificInfoVP8 VP8;
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CodecSpecificInfoVP9 VP9;
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CodecSpecificInfoH264 H264;
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};
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static_assert(std::is_pod<CodecSpecificInfoUnion>::value, "");
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// Note: If any pointers are added to this struct or its sub-structs, it
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// must be fitted with a copy-constructor. This is because it is copied
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// in the copy-constructor of VCMEncodedFrame.
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struct CodecSpecificInfo {
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CodecSpecificInfo() : codecType(kVideoCodecGeneric) {
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memset(&codecSpecific, 0, sizeof(codecSpecific));
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}
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VideoCodecType codecType;
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CodecSpecificInfoUnion codecSpecific;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_INCLUDE_VIDEO_CODEC_INTERFACE_H_
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