seekable_stream_encoder.h

这是著名的TCPMP播放器在WINDWOWS,和WINCE下编译通过的源程序.笔者对其中的LIBMAD库做了针对ARM MPU的优化. 并增加了词幕功能.

 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__StreamEncoderState
 *    The FLAC stream encoder state.
 */
OggFLAC_API FLAC__StreamEncoderState OggFLAC__seekable_stream_encoder_get_FLAC_stream_encoder_state(const OggFLAC__SeekableStreamEncoder *encoder);

/** Get the state of the underlying FLAC encoder's verify decoder.
 *  Useful when the seekable stream encoder state is
 *  \c OggFLAC__SEEKABLE_STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR
 *  and the FLAC stream encoder state is
 *  \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR.
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__StreamDecoderState
 *    The FLAC verify decoder state.
 */
OggFLAC_API FLAC__StreamDecoderState OggFLAC__seekable_stream_encoder_get_verify_decoder_state(const OggFLAC__SeekableStreamEncoder *encoder);

/** Get the current encoder state as a C string.
 *  This version automatically resolves
 *  \c OggFLAC__SEEKABLE_STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR
 *  by getting the FLAC stream encoder's resolved state.
 *
 * \param  encoder  A encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval const char *
 *    The encoder state as a C string.  Do not modify the contents.
 */
OggFLAC_API const char *OggFLAC__seekable_stream_encoder_get_resolved_state_string(const OggFLAC__SeekableStreamEncoder *encoder);

/** Get relevant values about the nature of a verify decoder error.
 *  Inherited from FLAC__stream_encoder_get_verify_decoder_error_stats().
 *  Useful when the seekable stream encoder state is
 *  \c OggFLAC__SEEKABLE_STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR
 *  and the FLAC stream encoder state is
 *  \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR.
 *
 * \param  encoder  An encoder instance to query.
 * \param  absolute_sample  The absolute sample number of the mismatch.
 * \param  frame_number  The number of the frame in which the mismatch occurred.
 * \param  channel       The channel in which the mismatch occurred.
 * \param  sample        The number of the sample (relative to the frame) in
 *                       which the mismatch occurred.
 * \param  expected      The expected value for the sample in question.
 * \param  got           The actual value returned by the decoder.
 * \assert
 *    \code encoder != NULL \endcode
 *    \code absolute_sample != NULL \endcode
 *    \code frame_number != NULL \endcode
 *    \code channel != NULL \endcode
 *    \code sample != NULL \endcode
 *    \code expected != NULL \endcode
 */
OggFLAC_API void OggFLAC__seekable_stream_encoder_get_verify_decoder_error_stats(const OggFLAC__SeekableStreamEncoder *encoder, FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_verify()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__bool
 *    See OggFLAC__seekable_stream_encoder_set_verify().
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_get_verify(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_streamable_subset()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__bool
 *    See OggFLAC__seekable_stream_encoder_set_streamable_subset().
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_get_streamable_subset(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_do_mid_side_stereo()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__bool
 *    See OggFLAC__seekable_stream_encoder_get_do_mid_side_stereo().
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_get_do_mid_side_stereo(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_loose_mid_side_stereo()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__bool
 *    See OggFLAC__seekable_stream_encoder_set_loose_mid_side_stereo().
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_get_loose_mid_side_stereo(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_channels()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_channels().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_channels(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_bits_per_sample()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_bits_per_sample().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_bits_per_sample(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_sample_rate()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_sample_rate().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_sample_rate(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_blocksize()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_blocksize().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_blocksize(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_max_lpc_order()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_max_lpc_order().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_max_lpc_order(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_qlp_coeff_precision()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_qlp_coeff_precision().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_qlp_coeff_precision(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_do_qlp_coeff_prec_search()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__bool
 *    See OggFLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search().
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_do_escape_coding()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__bool
 *    See OggFLAC__seekable_stream_encoder_set_do_escape_coding().
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_get_do_escape_coding(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_do_exhaustive_model_search()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__bool
 *    See OggFLAC__seekable_stream_encoder_set_do_exhaustive_model_search().
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_get_do_exhaustive_model_search(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_min_residual_partition_order()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_min_residual_partition_order().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_min_residual_partition_order(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_man_residual_partition_order()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_max_residual_partition_order().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_max_residual_partition_order(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_rice_parameter_search_dist()
 *
 * \param  encoder  An encoder instance to query.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval unsigned
 *    See OggFLAC__seekable_stream_encoder_set_rice_parameter_search_dist().
 */
OggFLAC_API unsigned OggFLAC__seekable_stream_encoder_get_rice_parameter_search_dist(const OggFLAC__SeekableStreamEncoder *encoder);

/** This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_get_total_samples_estimate()
 *
 * \param  encoder  An encoder instance to set.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval FLAC__uint64
 *    See OggFLAC__seekable_stream_encoder_get_total_samples_estimate().
 */
OggFLAC_API FLAC__uint64 OggFLAC__seekable_stream_encoder_get_total_samples_estimate(const OggFLAC__SeekableStreamEncoder *encoder);

/** Initialize the encoder instance.
 *  Should be called after OggFLAC__seekable_stream_encoder_new() and
 *  OggFLAC__seekable_stream_encoder_set_*() but before OggFLAC__seekable_stream_encoder_process()
 *  or OggFLAC__seekable_stream_encoder_process_interleaved().  Will set and return
 *  the encoder state, which will be OggFLAC__SEEKABLE_STREAM_ENCODER_OK if
 *  initialization succeeded.
 *
 *  The call to OggFLAC__seekable_stream_encoder_init() currently will also immediately
 *  call the write callback several times, once with the \c fLaC signature,
 *  and once for each encoded metadata block.
 *
 * \param  encoder  An uninitialized encoder instance.
 * \assert
 *    \code encoder != NULL \endcode
 * \retval OggFLAC__SeekableStreamEncoderState
 *    \c OggFLAC__SEEKABLE_STREAM_ENCODER_OK if initialization was successful; see
 *    OggFLAC__SeekableStreamEncoderState for the meanings of other return values.
 */
OggFLAC_API OggFLAC__SeekableStreamEncoderState OggFLAC__seekable_stream_encoder_init(OggFLAC__SeekableStreamEncoder *encoder);

/** Finish the encoding process.
 *  Flushes the encoding buffer, releases resources, resets the encoder
 *  settings to their defaults, and returns the encoder state to
 *  OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED.  Note that this can generate
 *  one or more write callbacks before returning.
 *
 *  In the event of a prematurely-terminated encode, it is not strictly
 *  necessary to call this immediately before OggFLAC__seekable_stream_encoder_delete()
 *  but it is good practice to match every OggFLAC__seekable_stream_encoder_init()
 *  with an OggFLAC__seekable_stream_encoder_finish().
 *
 * \param  encoder  An uninitialized encoder instance.
 * \assert
 *    \code encoder != NULL \endcode
 */
OggFLAC_API void OggFLAC__seekable_stream_encoder_finish(OggFLAC__SeekableStreamEncoder *encoder);

/** Submit data for encoding.
 * This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_process().
 *
 * \param  encoder  An initialized encoder instance in the OK state.
 * \param  buffer   An array of pointers to each channel's signal.
 * \param  samples  The number of samples in one channel.
 * \assert
 *    \code encoder != NULL \endcode
 *    \code OggFLAC__seekable_stream_encoder_get_state(encoder) == OggFLAC__SEEKABLE_STREAM_ENCODER_OK \endcode
 * \retval FLAC__bool
 *    \c true if successful, else \c false; in this case, check the
 *    encoder state with OggFLAC__seekable_stream_encoder_get_state() to see what
 *    went wrong.
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_process(OggFLAC__SeekableStreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples);

/** Submit data for encoding.
 * This is inherited from FLAC__StreamEncoder; see FLAC__stream_encoder_process_interleaved().
 *
 * \param  encoder  An initialized encoder instance in the OK state.
 * \param  buffer   An array of channel-interleaved data (see above).
 * \param  samples  The number of samples in one channel, the same as for
 *                  OggFLAC__seekable_stream_encoder_process().  For example, if
 *                  encoding two channels, \c 1000 \a samples corresponds
 *                  to a \a buffer of 2000 values.
 * \assert
 *    \code encoder != NULL \endcode
 *    \code OggFLAC__seekable_stream_encoder_get_state(encoder) == OggFLAC__SEEKABLE_STREAM_ENCODER_OK \endcode
 * \retval FLAC__bool
 *    \c true if successful, else \c false; in this case, check the
 *    encoder state with OggFLAC__seekable_stream_encoder_get_state() to see what
 *    went wrong.
 */
OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_process_interleaved(OggFLAC__SeekableStreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples);

/* \} */

#ifdef __cplusplus
}
#endif

#endif