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Diffstat (limited to 'chromium/media/mp3/mp3_stream_parser.h')
-rw-r--r-- | chromium/media/mp3/mp3_stream_parser.h | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/chromium/media/mp3/mp3_stream_parser.h b/chromium/media/mp3/mp3_stream_parser.h deleted file mode 100644 index 1e2e8c6f5b3..00000000000 --- a/chromium/media/mp3/mp3_stream_parser.h +++ /dev/null @@ -1,126 +0,0 @@ -// Copyright 2013 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef MEDIA_MP3_MP3_STREAM_PARSER_H_ -#define MEDIA_MP3_MP3_STREAM_PARSER_H_ - -#include <set> -#include <vector> - -#include "base/basictypes.h" -#include "base/callback.h" -#include "media/base/audio_decoder_config.h" -#include "media/base/audio_timestamp_helper.h" -#include "media/base/byte_queue.h" -#include "media/base/media_export.h" -#include "media/base/stream_parser.h" - -namespace media { - -class BitReader; - -class MEDIA_EXPORT MP3StreamParser : public StreamParser { - public: - MP3StreamParser(); - virtual ~MP3StreamParser(); - - // StreamParser implementation. - virtual void Init(const InitCB& init_cb, const NewConfigCB& config_cb, - const NewBuffersCB& new_buffers_cb, - const NewTextBuffersCB& text_cb, - const NeedKeyCB& need_key_cb, - const NewMediaSegmentCB& new_segment_cb, - const base::Closure& end_of_segment_cb, - const LogCB& log_cb) OVERRIDE; - virtual void Flush() OVERRIDE; - virtual bool Parse(const uint8* buf, int size) OVERRIDE; - - private: - enum State { - UNINITIALIZED, - INITIALIZED, - PARSE_ERROR - }; - - State state_; - - InitCB init_cb_; - NewConfigCB config_cb_; - NewBuffersCB new_buffers_cb_; - NewMediaSegmentCB new_segment_cb_; - base::Closure end_of_segment_cb_; - LogCB log_cb_; - - ByteQueue queue_; - - AudioDecoderConfig config_; - scoped_ptr<AudioTimestampHelper> timestamp_helper_; - bool in_media_segment_; - - void ChangeState(State state); - - // Parsing functions for various byte stream elements. - // |data| & |size| describe the data available for parsing. - // These functions are expected to consume an entire frame/header. - // It should only return a value greater than 0 when |data| has - // enough bytes to successfully parse & consume the entire element. - // - // |frame_size| - Required parameter that is set to the size of the frame, in - // bytes, including the frame header if the function returns a value > 0. - // |sample_rate| - Optional parameter that is set to the sample rate - // of the frame if this function returns a value > 0. - // |channel_layout| - Optional parameter that is set to the channel_layout - // of the frame if this function returns a value > 0. - // |sample_count| - Optional parameter that is set to the number of samples - // in the frame if this function returns a value > 0. - // - // |sample_rate|, |channel_layout|, |sample_count| may be NULL if the caller - // is not interested in receiving these values from the frame header. - // - // Returns: - // > 0 : The number of bytes parsed. - // 0 : If more data is needed to parse the entire element. - // < 0 : An error was encountered during parsing. - int ParseFrameHeader(const uint8* data, int size, - int* frame_size, - int* sample_rate, - ChannelLayout* channel_layout, - int* sample_count) const; - int ParseMP3Frame(const uint8* data, int size, BufferQueue* buffers); - int ParseIcecastHeader(const uint8* data, int size); - int ParseID3v1(const uint8* data, int size); - int ParseID3v2(const uint8* data, int size); - - // Parses an ID3v2 "sync safe" integer. - // |reader| - A BitReader to read from. - // |value| - Set to the integer value read, if true is returned. - // - // Returns true if the integer was successfully parsed and |value| - // was set. - // Returns false if an error was encountered. The state of |value| is - // undefined when false is returned. - bool ParseSyncSafeInt(BitReader* reader, int32* value); - - // Scans |data| for the next valid start code. - // Returns: - // > 0 : The number of bytes that should be skipped to reach the - // next start code.. - // 0 : If a valid start code was not found and more data is needed. - // < 0 : An error was encountered during parsing. - int FindNextValidStartCode(const uint8* data, int size) const; - - // Sends the buffers in |buffers| to |new_buffers_cb_| and then clears - // |buffers|. - // If |end_of_segment| is set to true, then |end_of_segment_cb_| is called - // after |new_buffers_cb_| to signal that these buffers represent the end of a - // media segment. - // Returns true if the buffers are sent successfully. - bool SendBuffers(BufferQueue* buffers, bool end_of_segment); - - DISALLOW_COPY_AND_ASSIGN(MP3StreamParser); -}; - -} // namespace media - -#endif // MEDIA_MP3_MP3_STREAM_PARSER_H_ |