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VideoStreamDecoderImpl implementation, part 3.

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This CL implements the functions related to decoding.

Bug: webrtc:8909
Change-Id: Iefa3c1565a9b9ae93f14992b4a1cca141b7c5193
Reviewed-on: https://webrtc-review.googlesource.com/66403
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22747}
This commit is contained in:
philipel
2018-04-05 11:02:54 +02:00
committed by Commit Bot
parent 498644e645
commit 844876d050
2 changed files with 121 additions and 1 deletions
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20
video/video_stream_decoder_impl.h
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@ -20,6 +20,7 @@
#include "modules/video_coding/frame_buffer2.h"
#include "modules/video_coding/jitter_estimator.h"
#include "modules/video_coding/timing.h"
#include "rtc_base/platform_thread.h"
#include "rtc_base/task_queue.h"
#include "rtc_base/thread_checker.h"
#include "system_wrappers/include/clock.h"
@ -39,7 +40,17 @@ class VideoStreamDecoderImpl : public VideoStreamDecoder,
void OnFrame(std::unique_ptr<video_coding::EncodedFrame> frame) override;
private:
enum DecodeResult {
kOk,
kDecodeFailure,
kNoFrame,
kNoDecoder,
kShutdown,
};
VideoDecoder* GetDecoder(int payload_type);
static void DecodeLoop(void* ptr);
DecodeResult DecodeNextFrame(int max_wait_time_ms, bool keyframe_required);
// Implements DecodedImageCallback interface
int32_t Decoded(VideoFrame& decodedImage) override;
@ -59,12 +70,21 @@ class VideoStreamDecoderImpl : public VideoStreamDecoder,
// - Synchronize with whatever thread that makes the Decoded callback.
rtc::TaskQueue bookkeeping_queue_;
rtc::PlatformThread decode_thread_;
VCMJitterEstimator jitter_estimator_;
VCMTiming timing_;
video_coding::FrameBuffer frame_buffer_;
video_coding::VideoLayerFrameId last_continuous_id_;
rtc::Optional<int> current_payload_type_;
std::unique_ptr<VideoDecoder> decoder_;
// Keep track of the |decode_start_time_| of the last |kDecodeTimeMemory|
// number of frames. The |decode_start_time_| array contain
// <frame timestamp> --> <decode start time> pairs.
static constexpr int kDecodeTimeMemory = 8;
std::array<std::pair<int64_t, int64_t>, kDecodeTimeMemory> decode_start_time_
RTC_GUARDED_BY(bookkeeping_queue_);
int next_start_time_index_ RTC_GUARDED_BY(bookkeeping_queue_);
};
} // namespace webrtc