stream_encoder.c

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.

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_set_max_residual_partition_order(OggFLAC__StreamEncoder *encoder, unsigned value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	FLAC__ASSERT(0 != encoder->private_->FLAC_stream_encoder);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	return FLAC__stream_encoder_set_max_residual_partition_order(encoder->private_->FLAC_stream_encoder, value);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_set_rice_parameter_search_dist(OggFLAC__StreamEncoder *encoder, unsigned value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	FLAC__ASSERT(0 != encoder->private_->FLAC_stream_encoder);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	return FLAC__stream_encoder_set_rice_parameter_search_dist(encoder->private_->FLAC_stream_encoder, value);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_set_total_samples_estimate(OggFLAC__StreamEncoder *encoder, FLAC__uint64 value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	FLAC__ASSERT(0 != encoder->private_->FLAC_stream_encoder);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	return FLAC__stream_encoder_set_total_samples_estimate(encoder->private_->FLAC_stream_encoder, value);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_set_metadata(OggFLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	FLAC__ASSERT(0 != encoder->private_->FLAC_stream_encoder);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	/* reorder metadata if necessary to ensure that any VORBIS_COMMENT is the first, according to the mapping spec */
	if(0 != metadata && num_blocks > 1) {
		unsigned i;
		for(i = 1; i < num_blocks; i++) {
			if(0 != metadata[i] && metadata[i]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
				FLAC__StreamMetadata *vc = metadata[i];
				for( ; i > 0; i--)
					metadata[i] = metadata[i-1];
				metadata[0] = vc;
				break;
			}
		}
	}
	if(!OggFLAC__ogg_encoder_aspect_set_num_metadata(&encoder->protected_->ogg_encoder_aspect, num_blocks))
		return false;
	return FLAC__stream_encoder_set_metadata(encoder->private_->FLAC_stream_encoder, metadata, num_blocks);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_set_write_callback(OggFLAC__StreamEncoder *encoder, OggFLAC__StreamEncoderWriteCallback value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	FLAC__ASSERT(0 != value);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	encoder->private_->write_callback = value;
	return true;
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_set_metadata_callback(OggFLAC__StreamEncoder *encoder, OggFLAC__StreamEncoderMetadataCallback value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	FLAC__ASSERT(0 != value);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	encoder->private_->metadata_callback = value;
	return true;
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_set_client_data(OggFLAC__StreamEncoder *encoder, void *value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	encoder->private_->client_data = value;
	return true;
}

/*
 * These three functions are not static, but not publically exposed in
 * include/FLAC/ either.  They are used by the test suite.
 */
OggFLAC_API FLAC__bool OggFLAC__stream_encoder_disable_constant_subframes(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	return FLAC__stream_encoder_disable_constant_subframes(encoder->private_->FLAC_stream_encoder, value);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_disable_fixed_subframes(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	return FLAC__stream_encoder_disable_fixed_subframes(encoder->private_->FLAC_stream_encoder, value);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_disable_verbatim_subframes(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
		return false;
	return FLAC__stream_encoder_disable_verbatim_subframes(encoder->private_->FLAC_stream_encoder, value);
}

OggFLAC_API OggFLAC__StreamEncoderState OggFLAC__stream_encoder_get_state(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return encoder->protected_->state;
}

OggFLAC_API FLAC__StreamEncoderState OggFLAC__stream_encoder_get_FLAC_stream_encoder_state(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_state(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__StreamDecoderState OggFLAC__stream_encoder_get_verify_decoder_state(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_verify_decoder_state(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API const char *OggFLAC__stream_encoder_get_resolved_state_string(const OggFLAC__StreamEncoder *encoder)
{
	if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR)
		return OggFLAC__StreamEncoderStateString[encoder->protected_->state];
	else
		return FLAC__stream_encoder_get_resolved_state_string(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API void OggFLAC__stream_encoder_get_verify_decoder_error_stats(const OggFLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_sample, unsigned *frame_number, unsigned *channel, unsigned *sample, FLAC__int32 *expected, FLAC__int32 *got)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__stream_encoder_get_verify_decoder_error_stats(encoder->private_->FLAC_stream_encoder, absolute_sample, frame_number, channel, sample, expected, got);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_get_verify(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_verify(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_get_streamable_subset(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_streamable_subset(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_get_do_mid_side_stereo(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_do_mid_side_stereo(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_get_loose_mid_side_stereo(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_loose_mid_side_stereo(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_channels(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_channels(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_bits_per_sample(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_bits_per_sample(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_sample_rate(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_sample_rate(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_blocksize(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_blocksize(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_max_lpc_order(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_max_lpc_order(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_qlp_coeff_precision(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_qlp_coeff_precision(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_get_do_qlp_coeff_prec_search(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_get_do_escape_coding(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_do_escape_coding(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_get_do_exhaustive_model_search(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_do_exhaustive_model_search(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_min_residual_partition_order(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_min_residual_partition_order(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_max_residual_partition_order(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_max_residual_partition_order(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API unsigned OggFLAC__stream_encoder_get_rice_parameter_search_dist(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_rice_parameter_search_dist(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__uint64 OggFLAC__stream_encoder_get_total_samples_estimate(const OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_get_total_samples_estimate(encoder->private_->FLAC_stream_encoder);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_process(OggFLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_process(encoder->private_->FLAC_stream_encoder, buffer, samples);
}

OggFLAC_API FLAC__bool OggFLAC__stream_encoder_process_interleaved(OggFLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
{
	FLAC__ASSERT(0 != encoder);
	FLAC__ASSERT(0 != encoder->private_);
	FLAC__ASSERT(0 != encoder->protected_);
	return FLAC__stream_encoder_process_interleaved(encoder->private_->FLAC_stream_encoder, buffer, samples);
}

/***********************************************************************
 *
 * Private class methods
 *
 ***********************************************************************/

void set_defaults_(OggFLAC__StreamEncoder *encoder)
{
	FLAC__ASSERT(0 != encoder);

	encoder->private_->write_callback = 0;
	encoder->private_->metadata_callback = 0;
	encoder->private_->client_data = 0;
	OggFLAC__ogg_encoder_aspect_set_defaults(&encoder->protected_->ogg_encoder_aspect);
}

FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *unused, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
{
	OggFLAC__StreamEncoder *encoder = (OggFLAC__StreamEncoder*)client_data;
	const FLAC__uint64 total_samples_estimate = FLAC__stream_encoder_get_total_samples_estimate(encoder->private_->FLAC_stream_encoder);

	(void)unused;
	FLAC__ASSERT(encoder->private_->FLAC_stream_encoder == unused);

	return OggFLAC__ogg_encoder_aspect_write_callback_wrapper(&encoder->protected_->ogg_encoder_aspect, total_samples_estimate, buffer, bytes, samples, current_frame, (OggFLAC__OggEncoderAspectWriteCallbackProxy)encoder->private_->write_callback, encoder, encoder->private_->client_data);
}

void metadata_callback_(const FLAC__StreamEncoder *unused, const FLAC__StreamMetadata *metadata, void *client_data)
{
	OggFLAC__StreamEncoder *encoder = (OggFLAC__StreamEncoder*)client_data;

	(void)unused;
	FLAC__ASSERT(encoder->private_->FLAC_stream_encoder == unused);

	encoder->private_->metadata_callback(encoder, metadata, encoder->private_->client_data);
}