blob: ea531e4c1a17872b193107315ca5aa64b3a6b176 [file] [log] [blame]
* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include <memory>
#include <string>
#include <vector>
#include "webrtc/api/video/video_frame.h"
#include "webrtc/common_types.h"
#include "webrtc/common_video/include/video_frame.h"
#include "webrtc/typedefs.h"
namespace webrtc {
class RTPFragmentationHeader;
// TODO(pbos): Expose these through a public (root) header or change these APIs.
struct CodecSpecificInfo;
class VideoCodec;
class DecodedImageCallback {
virtual ~DecodedImageCallback() {}
virtual int32_t Decoded(VideoFrame& decodedImage) = 0;
// Provides an alternative interface that allows the decoder to specify the
// decode time excluding waiting time for any previous pending frame to
// return. This is necessary for breaking positive feedback in the delay
// estimation when the decoder has a single output buffer.
virtual int32_t Decoded(VideoFrame& decodedImage, int64_t decode_time_ms) {
// The default implementation ignores custom decode time value.
return Decoded(decodedImage);
// TODO(sakal): Remove other implementations when upstream projects have been
// updated.
virtual void Decoded(VideoFrame& decodedImage,
rtc::Optional<int32_t> decode_time_ms,
rtc::Optional<uint8_t> qp) {
decode_time_ms ? static_cast<int32_t>(*decode_time_ms) : -1);
virtual int32_t ReceivedDecodedReferenceFrame(const uint64_t pictureId) {
return -1;
virtual int32_t ReceivedDecodedFrame(const uint64_t pictureId) { return -1; }
class VideoDecoder {
virtual ~VideoDecoder() {}
virtual int32_t InitDecode(const VideoCodec* codec_settings,
int32_t number_of_cores) = 0;
virtual int32_t Decode(const EncodedImage& input_image,
bool missing_frames,
const RTPFragmentationHeader* fragmentation,
const CodecSpecificInfo* codec_specific_info = NULL,
int64_t render_time_ms = -1) = 0;
virtual int32_t RegisterDecodeCompleteCallback(
DecodedImageCallback* callback) = 0;
virtual int32_t Release() = 0;
// Returns true if the decoder prefer to decode frames late.
// That is, it can not decode infinite number of frames before the decoded
// frame is consumed.
virtual bool PrefersLateDecoding() const { return true; }
virtual const char* ImplementationName() const { return "unknown"; }
} // namespace webrtc