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Request keyframes more frequently on stream start/decoding error.

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In this CL:
 - Added FrameObject::is_keyframe() convinience function.
 - Moved logic to request keyframes on decoding error from VideoReceived to
   VideoReceiveStream.
 - Added keyframe_required as a parameter to FrameBuffer::NextFrame.

BUG=webrtc:8074

Review-Url: https://codereview.webrtc.org/2993793002
Cr-Commit-Position: refs/heads/master@{#19280}
This commit is contained in:
philipel
2017-08-09 03:33:59 -07:00
committed by Commit Bot
parent 445f1a1535
commit 26b4804358
7 changed files with 43 additions and 27 deletions
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11
webrtc/modules/video_coding/frame_buffer2.cc
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@ -59,7 +59,8 @@ FrameBuffer::~FrameBuffer() {}
FrameBuffer::ReturnReason FrameBuffer::NextFrame(
int64_t max_wait_time_ms,
std::unique_ptr<FrameObject>* frame_out) {
std::unique_ptr<FrameObject>* frame_out,
bool keyframe_required) {
TRACE_EVENT0("webrtc", "FrameBuffer::NextFrame");
int64_t latest_return_time_ms =
clock_->TimeInMilliseconds() + max_wait_time_ms;
@ -105,6 +106,10 @@ FrameBuffer::ReturnReason FrameBuffer::NextFrame(
}
FrameObject* frame = frame_it->second.frame.get();
if (keyframe_required && !frame->is_keyframe())
continue;
next_frame_it_ = frame_it;
if (frame->RenderTime() == -1)
frame->SetRenderTime(timing_->RenderTimeMs(frame->timestamp, now_ms));
@ -272,7 +277,7 @@ int FrameBuffer::InsertFrame(std::unique_ptr<FrameObject> frame) {
TRACE_EVENT0("webrtc", "FrameBuffer::InsertFrame");
RTC_DCHECK(frame);
if (stats_callback_)
stats_callback_->OnCompleteFrame(frame->num_references == 0, frame->size());
stats_callback_->OnCompleteFrame(frame->is_keyframe(), frame->size());
FrameKey key(frame->picture_id, frame->spatial_layer);
rtc::CritScope lock(&crit_);
@ -300,7 +305,7 @@ int FrameBuffer::InsertFrame(std::unique_ptr<FrameObject> frame) {
if (last_decoded_frame_it_ != frames_.end() &&
key <= last_decoded_frame_it_->first) {
if (AheadOf(frame->timestamp, last_decoded_frame_timestamp_) &&
frame->num_references == 0) {
frame->is_keyframe()) {
// If this frame has a newer timestamp but an earlier picture id then we
// assume there has been a jump in the picture id due to some encoder
// reconfiguration or some other reason. Even though this is not according