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1 /* | |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #include "webrtc/video/video_stream_decoder.h" | |
12 | |
13 #include <algorithm> | |
14 #include <map> | |
15 #include <vector> | |
16 | |
17 #include "webrtc/base/checks.h" | |
18 #include "webrtc/base/logging.h" | |
19 #include "webrtc/common_video/include/frame_callback.h" | |
20 #include "webrtc/common_video/include/incoming_video_stream.h" | |
21 #include "webrtc/modules/video_coding/video_coding_impl.h" | |
22 #include "webrtc/modules/video_processing/include/video_processing.h" | |
23 #include "webrtc/system_wrappers/include/metrics.h" | |
24 #include "webrtc/video/call_stats.h" | |
25 #include "webrtc/video/payload_router.h" | |
26 #include "webrtc/video/receive_statistics_proxy.h" | |
27 | |
28 namespace webrtc { | |
29 | |
30 VideoStreamDecoder::VideoStreamDecoder( | |
31 vcm::VideoReceiver* video_receiver, | |
32 VCMFrameTypeCallback* vcm_frame_type_callback, | |
33 VCMPacketRequestCallback* vcm_packet_request_callback, | |
34 bool enable_nack, | |
35 ReceiveStatisticsProxy* receive_statistics_proxy, | |
36 IncomingVideoStream* incoming_video_stream, | |
37 I420FrameCallback* pre_render_callback) | |
38 : video_receiver_(video_receiver), | |
39 receive_stats_callback_(receive_statistics_proxy), | |
40 incoming_video_stream_(incoming_video_stream), | |
41 pre_render_callback_(pre_render_callback), | |
42 last_rtt_ms_(0) { | |
43 RTC_DCHECK(video_receiver_); | |
44 | |
45 static const int kMaxPacketAgeToNack = 450; | |
46 static const int kMaxNackListSize = 250; | |
47 video_receiver_->SetNackSettings(kMaxNackListSize, | |
48 kMaxPacketAgeToNack, 0); | |
49 video_receiver_->RegisterReceiveCallback(this); | |
50 video_receiver_->RegisterFrameTypeCallback(vcm_frame_type_callback); | |
51 video_receiver_->RegisterReceiveStatisticsCallback(this); | |
52 video_receiver_->RegisterDecoderTimingCallback(this); | |
53 static const int kDefaultRenderDelayMs = 10; | |
54 video_receiver_->SetRenderDelay(kDefaultRenderDelayMs); | |
55 | |
56 VCMVideoProtection video_protection = enable_nack ? kProtectionNack | |
57 : kProtectionNone; | |
stefan-webrtc
2016/05/03 07:48:08
We should inform about FEC here as well if both NA
mflodman
2016/05/03 07:56:52
Acknowledged.
| |
58 VCMDecodeErrorMode decode_error_mode = enable_nack ? kNoErrors : kWithErrors; | |
59 video_receiver_->SetVideoProtection(video_protection, true); | |
60 video_receiver_->SetDecodeErrorMode(decode_error_mode); | |
61 VCMPacketRequestCallback* packet_request_callback = | |
62 enable_nack ? vcm_packet_request_callback : nullptr; | |
63 video_receiver_->RegisterPacketRequestCallback(packet_request_callback); | |
64 } | |
65 | |
66 VideoStreamDecoder::~VideoStreamDecoder() {} | |
67 | |
68 // Do not acquire the lock of |video_receiver_| in this function. Decode | |
69 // callback won't necessarily be called from the decoding thread. The decoding | |
70 // thread may have held the lock when calling VideoDecoder::Decode, Reset, or | |
71 // Release. Acquiring the same lock in the path of decode callback can deadlock. | |
72 int32_t VideoStreamDecoder::FrameToRender(VideoFrame& video_frame) { // NOLINT | |
73 if (pre_render_callback_) | |
74 pre_render_callback_->FrameCallback(&video_frame); | |
75 | |
76 // TODO(pbos): Remove stream id argument. | |
77 incoming_video_stream_->RenderFrame(0xFFFFFFFF, video_frame); | |
78 return 0; | |
79 } | |
80 | |
81 int32_t VideoStreamDecoder::ReceivedDecodedReferenceFrame( | |
82 const uint64_t picture_id) { | |
83 RTC_NOTREACHED(); | |
84 return 0; | |
85 } | |
86 | |
87 void VideoStreamDecoder::OnIncomingPayloadType(int payload_type) { | |
88 receive_stats_callback_->OnIncomingPayloadType(payload_type); | |
89 } | |
90 | |
91 void VideoStreamDecoder::OnDecoderImplementationName( | |
92 const char* implementation_name) { | |
93 receive_stats_callback_->OnDecoderImplementationName(implementation_name); | |
94 } | |
95 | |
96 void VideoStreamDecoder::OnReceiveRatesUpdated(uint32_t bit_rate, | |
97 uint32_t frame_rate) { | |
98 receive_stats_callback_->OnIncomingRate(frame_rate, bit_rate); | |
99 } | |
100 | |
101 void VideoStreamDecoder::OnDiscardedPacketsUpdated(int discarded_packets) { | |
102 receive_stats_callback_->OnDiscardedPacketsUpdated(discarded_packets); | |
103 } | |
104 | |
105 void VideoStreamDecoder::OnFrameCountsUpdated(const FrameCounts& frame_counts) { | |
106 receive_stats_callback_->OnFrameCountsUpdated(frame_counts); | |
107 } | |
108 | |
109 void VideoStreamDecoder::OnDecoderTiming(int decode_ms, | |
110 int max_decode_ms, | |
111 int current_delay_ms, | |
112 int target_delay_ms, | |
113 int jitter_buffer_ms, | |
114 int min_playout_delay_ms, | |
115 int render_delay_ms) { | |
116 int last_rtt = -1; | |
117 { | |
118 rtc::CritScope lock(&crit_); | |
119 last_rtt = last_rtt_ms_; | |
120 } | |
121 | |
122 receive_stats_callback_->OnDecoderTiming( | |
123 decode_ms, max_decode_ms, current_delay_ms, target_delay_ms, | |
124 jitter_buffer_ms, min_playout_delay_ms, render_delay_ms, last_rtt); | |
125 } | |
126 | |
127 void VideoStreamDecoder::OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) { | |
128 video_receiver_->SetReceiveChannelParameters(max_rtt_ms); | |
129 | |
130 rtc::CritScope lock(&crit_); | |
131 last_rtt_ms_ = avg_rtt_ms; | |
132 } | |
133 } // namespace webrtc | |
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