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Add more loggings for GAPs 

Fixes #474.

Change-Id: I32f097c8a0e8d3381a276e6a130cb888e3ddd7f6
This commit is contained in:
KongQun Yang 2019-03-26 15:16:30 -07:00
parent 3ec2975e36
commit a86a697d8d
3 changed files with 41 additions and 4 deletions
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14
packager/media/formats/mp2t/es_parser_h26x.cc
View File

@ -326,8 +326,18 @@ bool EsParserH26x::EmitFrame(int64_t access_unit_pos,
const int64_t kArbitrarySmallDuration = 0.001 * kMpeg2Timescale; // 1ms.
pending_sample_->set_duration(kArbitrarySmallDuration);
} else {
pending_sample_duration_ = media_sample->dts() - pending_sample_->dts();
pending_sample_->set_duration(pending_sample_duration_);
uint64_t sample_duration = media_sample->dts() - pending_sample_->dts();
pending_sample_->set_duration(sample_duration);
const int kArbitraryGapScale = 10;
if (sample_duration > kArbitraryGapScale * pending_sample_duration_) {
LOG(WARNING) << "[MPEG-2 TS] PID " << pid() << " Possible GAP at dts "
<< pending_sample_->dts() << " with next sample at dts "
<< media_sample->dts() << " (difference "
<< sample_duration << ")";
}
pending_sample_duration_ = sample_duration;
}
emit_sample_cb_.Run(pid(), std::move(pending_sample_));
}

26
packager/mpd/base/representation.cc
View File

@ -11,6 +11,7 @@
#include <algorithm>
#include "packager/base/logging.h"
#include "packager/base/strings/stringprintf.h"
#include "packager/file/file.h"
#include "packager/media/base/muxer_util.h"
#include "packager/mpd/base/mpd_options.h"
@ -358,7 +359,7 @@ void Representation::AddSegmentInfo(int64_t start_time, int64_t duration) {
// A gap since previous.
const int64_t kRoundingErrorGrace = 5;
if (previous_segment_end_time + kRoundingErrorGrace < start_time) {
LOG(WARNING) << "Found a gap of size "
LOG(WARNING) << RepresentationAsString() << " Found a gap of size "
<< (start_time - previous_segment_end_time)
<< " > kRoundingErrorGrace (" << kRoundingErrorGrace
<< "). The new segment starts at " << start_time
@ -369,6 +370,7 @@ void Representation::AddSegmentInfo(int64_t start_time, int64_t duration) {
// No overlapping segments.
if (start_time < previous_segment_end_time - kRoundingErrorGrace) {
LOG(WARNING)
<< RepresentationAsString()
<< " Segments should not be overlapping. The new segment starts at "
<< start_time << " but the previous segment ends at "
<< previous_segment_end_time << ".";
@ -504,4 +506,26 @@ std::string Representation::GetTextMimeType() const {
return "";
}
std::string Representation::RepresentationAsString() const {
std::string s = base::StringPrintf("Representation (id=%d,", id_);
if (media_info_.has_video_info()) {
const MediaInfo_VideoInfo& video_info = media_info_.video_info();
base::StringAppendF(&s, "codec='%s',width=%d,height=%d",
video_info.codec().c_str(), video_info.width(),
video_info.height());
} else if (media_info_.has_audio_info()) {
const MediaInfo_AudioInfo& audio_info = media_info_.audio_info();
base::StringAppendF(
&s, "codec='%s',frequency=%d,language='%s'", audio_info.codec().c_str(),
audio_info.sampling_frequency(), audio_info.language().c_str());
} else if (media_info_.has_text_info()) {
const MediaInfo_TextInfo& text_info = media_info_.text_info();
base::StringAppendF(&s, "codec='%s',language='%s'",
text_info.codec().c_str(),
text_info.language().c_str());
}
base::StringAppendF(&s, ")");
return s;
}
} // namespace shaka

3
packager/mpd/base/representation.h
View File

@ -206,6 +206,9 @@ class Representation {
std::string GetAudioMimeType() const;
std::string GetTextMimeType() const;
// Get Representation as string. For debugging.
std::string RepresentationAsString() const;
// Init() checks that only one of VideoInfo, AudioInfo, or TextInfo is set. So
// any logic using this can assume only one set.
MediaInfo media_info_;