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author | Torne (Richard Coles) <torne@google.com> | 2014-03-18 10:20:56 +0000 |
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committer | Torne (Richard Coles) <torne@google.com> | 2014-03-18 10:20:56 +0000 |
commit | a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 (patch) | |
tree | 3437151d9ae1ce20a1e53a0d98c19ca01c786394 /media/base/audio_decoder.h | |
parent | af5066f1e36c6579e74752647e6c584438f80f94 (diff) | |
download | chromium_org-a1401311d1ab56c4ed0a474bd38c108f75cb0cd9.tar.gz |
Merge from Chromium at DEPS revision 257591
This commit was generated by merge_to_master.py.
Change-Id: I0010df2ec3fbb5d4947cd026de2feb150ce7a6b5
Diffstat (limited to 'media/base/audio_decoder.h')
-rw-r--r-- | media/base/audio_decoder.h | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/media/base/audio_decoder.h b/media/base/audio_decoder.h index 5aefb84aa6..901126d45b 100644 --- a/media/base/audio_decoder.h +++ b/media/base/audio_decoder.h @@ -7,9 +7,11 @@ #include "base/callback.h" #include "base/memory/ref_counted.h" +#include "media/base/audio_decoder_config.h" #include "media/base/channel_layout.h" -#include "media/base/pipeline_status.h" +#include "media/base/decoder_buffer.h" #include "media/base/media_export.h" +#include "media/base/pipeline_status.h" namespace media { @@ -18,11 +20,15 @@ class DemuxerStream; class MEDIA_EXPORT AudioDecoder { public: - // Status codes for read operations. + // Status codes for decode operations. + // TODO(rileya): Now that both AudioDecoder and VideoDecoder Status enums + // match, break them into a decoder_status.h. enum Status { - kOk, - kAborted, - kDecodeError, + kOk, // We're all good. + kAborted, // We aborted as a result of Stop() or Reset(). + kNotEnoughData, // Not enough data to produce a video frame. + kDecodeError, // A decoding error occurred. + kDecryptError // Decrypting error happened. }; AudioDecoder(); @@ -31,23 +37,27 @@ class MEDIA_EXPORT AudioDecoder { // Initializes an AudioDecoder with the given DemuxerStream, executing the // callback upon completion. // statistics_cb is used to update global pipeline statistics. - virtual void Initialize(DemuxerStream* stream, - const PipelineStatusCB& status_cb, - const StatisticsCB& statistics_cb) = 0; + virtual void Initialize(const AudioDecoderConfig& config, + const PipelineStatusCB& status_cb) = 0; // Requests samples to be decoded and returned via the provided callback. - // Only one read may be in flight at any given time. + // Only one decode may be in flight at any given time. // // Implementations guarantee that the callback will not be called from within // this method. // // Non-NULL sample buffer pointers will contain decoded audio data or may // indicate the end of the stream. A NULL buffer pointer indicates an aborted - // Read(). This can happen if the DemuxerStream gets flushed and doesn't have - // any more data to return. + // Decode(). typedef base::Callback<void(Status, const scoped_refptr<AudioBuffer>&)> - ReadCB; - virtual void Read(const ReadCB& read_cb) = 0; + DecodeCB; + virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer, + const DecodeCB& decode_cb) = 0; + + // Some AudioDecoders will queue up multiple AudioBuffers from a single + // DecoderBuffer, if we have any such queued buffers this will return the next + // one. Otherwise we return a NULL AudioBuffer. + virtual scoped_refptr<AudioBuffer> GetDecodeOutput(); // Resets decoder state, dropping any queued encoded data. virtual void Reset(const base::Closure& closure) = 0; |