61 lines
2.5 KiB
C++
Executable File
61 lines
2.5 KiB
C++
Executable File
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MEDIA_KEYS_H_
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#define MEDIA_KEYS_H_
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namespace android {
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// When signalling a discontinuity to IStreamListener you can optionally
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// specify the type(s) of discontinuity, i.e. if the audio format has changed,
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// the video format has changed, time has jumped or any combination thereof.
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// To do so, include a non-zero int32_t value under the key
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// "kIStreamListenerKeyDiscontinuityMask" when issuing the
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// IStreamListener::DISCONTINUITY command.
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// If there is a change in audio/video format, The new logical stream
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// must start with proper codec initialization
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// information for playback to continue, i.e. SPS and PPS in the case
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// of AVC video etc.
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// If this key is not present, only a time discontinuity is assumed.
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// The value should be a bitmask of values from
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// ATSParser::DiscontinuityType.
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extern const char *const kIStreamListenerKeyDiscontinuityMask;
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// When signalling a discontinuity to ATSParser you can optionally
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// specify an int64_t PTS timestamp in "extra".
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// If present, rendering of data following the discontinuity
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// will be suppressed until media time reaches this timestamp.
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extern const char *const kATSParserKeyResumeAtPTS;
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// When signalling a discontinuity to ATSParser you can optionally
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// specify an int64_t PTS timestamp in "extra".
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// It indicates the media time (in us) to be associated
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// with the next PTS occuring in the stream. The value is of type int64_t.
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extern const char *const kATSParserKeyMediaTimeUs;
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// When signalling a discontinuity to ATSParser you can optionally
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// specify an int64_t PTS timestamp in "extra".
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// It indicates the media time (in us) of a recent
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// sample from the same content, and is used as a hint for the parser to
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// handle PTS wraparound. This is required when a new parser is created
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// to continue parsing content from the same timeline.
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extern const char *const kATSParserKeyRecentMediaTimeUs;
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} // namespace android
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#endif // MEDIA_KEYS_H_
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