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Defined CueEvent struct. 

Change-Id: If4ba55a7ff403248de9d0411c2ba8553b88c491b
This commit is contained in:
Kamesh Devarakonda 2017-11-21 16:35:20 -05:00
parent c4e7d02b80
commit cc778f60ab
1 changed files with 28 additions and 0 deletions
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28
packager/media/base/media_handler.h
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@ -26,6 +26,7 @@ enum class StreamDataType {
kTextSample, kTextSample,
kSegmentInfo, kSegmentInfo,
kScte35Event, kScte35Event,
kCueEvent,
}; };
// Scte35Event represents cuepoint markers in input streams. It will be used // Scte35Event represents cuepoint markers in input streams. It will be used
@ -39,6 +40,16 @@ struct Scte35Event {
std::string cue_data; std::string cue_data;
}; };
enum class CueEventType { kCueIn, kCueOut, kCuePoint };
// In server-based model, Chunking Handler consolidates SCTE-35 events and
// generates CueEvent before an ad is about to be inserted.
struct CueEvent {
int64_t timestamp = 0;
CueEventType type = CueEventType::kCuePoint;
std::string cue_data;
};
struct SegmentInfo { struct SegmentInfo {
bool is_subsegment = false; bool is_subsegment = false;
bool is_encrypted = false; bool is_encrypted = false;
@ -60,6 +71,7 @@ struct StreamData {
std::shared_ptr<const TextSample> text_sample; std::shared_ptr<const TextSample> text_sample;
std::shared_ptr<const SegmentInfo> segment_info; std::shared_ptr<const SegmentInfo> segment_info;
std::shared_ptr<const Scte35Event> scte35_event; std::shared_ptr<const Scte35Event> scte35_event;
std::shared_ptr<const CueEvent> cue_event;
static std::unique_ptr<StreamData> FromStreamInfo( static std::unique_ptr<StreamData> FromStreamInfo(
size_t stream_index, std::shared_ptr<const StreamInfo> stream_info) { size_t stream_index, std::shared_ptr<const StreamInfo> stream_info) {
@ -106,6 +118,16 @@ struct StreamData {
stream_data->scte35_event = std::move(scte35_event); stream_data->scte35_event = std::move(scte35_event);
return stream_data; return stream_data;
} }
static std::unique_ptr<StreamData> FromCueEvent(
size_t stream_index,
std::shared_ptr<const CueEvent> cue_event) {
std::unique_ptr<StreamData> stream_data(new StreamData);
stream_data->stream_index = stream_index;
stream_data->stream_data_type = StreamDataType::kCueEvent;
stream_data->cue_event = std::move(cue_event);
return stream_data;
}
}; };
/// MediaHandler is the base media processing unit. Media handlers transform /// MediaHandler is the base media processing unit. Media handlers transform
@ -196,6 +218,12 @@ class MediaHandler {
return Dispatch(StreamData::FromScte35Event(stream_index, scte35_event)); return Dispatch(StreamData::FromScte35Event(stream_index, scte35_event));
} }
/// Dispatch the cue event to downstream handlers.
Status DispatchCueEvent(size_t stream_index,
std::shared_ptr<const CueEvent> cue_event) {
return Dispatch(StreamData::FromCueEvent(stream_index, cue_event));
}
/// Flush the downstream connected at the specified output stream index. /// Flush the downstream connected at the specified output stream index.
Status FlushDownstream(size_t output_stream_index); Status FlushDownstream(size_t output_stream_index);