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Add field-trial parameter to enable tests simulating a slow decoder

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This CL adds a field trial parameter WebRTC-SlowDownDecoder that is
used to simulate a slow decoder. The parameter specifies how many
extra ms it takes to decode each video frame. This must only be used
in manual testing.

Bug: None
Change-Id: Iad4079100d67b95c224277aaeaf572e38068717f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151911
Commit-Queue: Johannes Kron <kron@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29153}
This commit is contained in:
Johannes Kron
2019-09-11 12:00:22 +02:00
committed by Commit Bot
parent 2d7b2f5f72
commit 7ddea57e94
3 changed files with 20 additions and 1 deletions
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4
modules/video_coding/generic_decoder.h
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@ -13,12 +13,14 @@
#include <memory>
#include "api/units/time_delta.h"
#include "modules/include/module_common_types.h"
#include "modules/video_coding/encoded_frame.h"
#include "modules/video_coding/include/video_codec_interface.h"
#include "modules/video_coding/timestamp_map.h"
#include "modules/video_coding/timing.h"
#include "rtc_base/critical_section.h"
#include "rtc_base/experiments/field_trial_parser.h"
#include "rtc_base/thread_checker.h"
namespace webrtc {
@ -71,6 +73,8 @@ class VCMDecodedFrameCallback : public DecodedImageCallback {
rtc::CriticalSection lock_;
VCMTimestampMap _timestampMap RTC_GUARDED_BY(lock_);
int64_t ntp_offset_;
// Set by the field trial WebRTC-SlowDownDecoder to simulate a slow decoder.
FieldTrialOptional<TimeDelta> _extra_decode_time;
};
class VCMGenericDecoder {