diff options
Diffstat (limited to 'apps/codecs/libFLAC/seekable_stream_encoder.c')
| -rw-r--r-- | apps/codecs/libFLAC/seekable_stream_encoder.c | 943 |
1 files changed, 943 insertions, 0 deletions
diff --git a/apps/codecs/libFLAC/seekable_stream_encoder.c b/apps/codecs/libFLAC/seekable_stream_encoder.c new file mode 100644 index 0000000..18291a8 --- /dev/null +++ b/apps/codecs/libFLAC/seekable_stream_encoder.c @@ -0,0 +1,943 @@ +/* libFLAC - Free Lossless Audio Codec library + * Copyright (C) 2002,2003,2004,2005 Josh Coalson + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of the Xiph.org Foundation nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <stdio.h> +#include <stdlib.h> /* for calloc() */ +#include <string.h> /* for memcpy() */ +#include "FLAC/assert.h" +#include "protected/seekable_stream_encoder.h" + +#ifdef max +#undef max +#endif +#define max(a,b) ((a)>(b)?(a):(b)) + +/*********************************************************************** + * + * Private class method prototypes + * + ***********************************************************************/ + +/* unpublished debug routines */ +extern FLAC__bool FLAC__stream_encoder_disable_constant_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value); +extern FLAC__bool FLAC__stream_encoder_disable_fixed_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value); +extern FLAC__bool FLAC__stream_encoder_disable_verbatim_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value); + +static void set_defaults_(FLAC__SeekableStreamEncoder *encoder); +static FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data); +static void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data); + +/*********************************************************************** + * + * Private class data + * + ***********************************************************************/ + +typedef struct FLAC__SeekableStreamEncoderPrivate { + FLAC__SeekableStreamEncoderSeekCallback seek_callback; + FLAC__SeekableStreamEncoderTellCallback tell_callback; + FLAC__SeekableStreamEncoderWriteCallback write_callback; + void *client_data; + FLAC__StreamEncoder *stream_encoder; + FLAC__StreamMetadata_SeekTable *seek_table; + /* internal vars (all the above are class settings) */ + unsigned first_seekpoint_to_check; + FLAC__uint64 samples_written; +} FLAC__SeekableStreamEncoderPrivate; + +/*********************************************************************** + * + * Public static class data + * + ***********************************************************************/ + +FLAC_API const char * const FLAC__SeekableStreamEncoderStateString[] = { + "FLAC__SEEKABLE_STREAM_ENCODER_OK", + "FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR", + "FLAC__SEEKABLE_STREAM_ENCODER_MEMORY_ALLOCATION_ERROR", + "FLAC__SEEKABLE_STREAM_ENCODER_WRITE_ERROR", + "FLAC__SEEKABLE_STREAM_ENCODER_READ_ERROR", + "FLAC__SEEKABLE_STREAM_ENCODER_SEEK_ERROR", + "FLAC__SEEKABLE_STREAM_ENCODER_TELL_ERROR", + "FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED", + "FLAC__SEEKABLE_STREAM_ENCODER_INVALID_CALLBACK", + "FLAC__SEEKABLE_STREAM_ENCODER_INVALID_SEEKTABLE", + "FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED" +}; + +FLAC_API const char * const FLAC__SeekableStreamEncoderSeekStatusString[] = { + "FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_OK", + "FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_ERROR" +}; + +FLAC_API const char * const FLAC__SeekableStreamEncoderTellStatusString[] = { + "FLAC__SEEKABLE_STREAM_ENCODER_TELL_STATUS_OK", + "FLAC__SEEKABLE_STREAM_ENCODER_TELL_STATUS_ERROR" +}; + + +/*********************************************************************** + * + * Class constructor/destructor + * + ***********************************************************************/ + +FLAC_API FLAC__SeekableStreamEncoder *FLAC__seekable_stream_encoder_new() +{ + FLAC__SeekableStreamEncoder *encoder; + + FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */ + + encoder = (FLAC__SeekableStreamEncoder*)calloc(1, sizeof(FLAC__SeekableStreamEncoder)); + if(encoder == 0) { + return 0; + } + + encoder->protected_ = (FLAC__SeekableStreamEncoderProtected*)calloc(1, sizeof(FLAC__SeekableStreamEncoderProtected)); + if(encoder->protected_ == 0) { + free(encoder); + return 0; + } + + encoder->private_ = (FLAC__SeekableStreamEncoderPrivate*)calloc(1, sizeof(FLAC__SeekableStreamEncoderPrivate)); + if(encoder->private_ == 0) { + free(encoder->protected_); + free(encoder); + return 0; + } + + encoder->private_->stream_encoder = FLAC__stream_encoder_new(); + if(0 == encoder->private_->stream_encoder) { + free(encoder->private_); + free(encoder->protected_); + free(encoder); + return 0; + } + + set_defaults_(encoder); + + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED; + + return encoder; +} + +FLAC_API void FLAC__seekable_stream_encoder_delete(FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + + (void)FLAC__seekable_stream_encoder_finish(encoder); + + FLAC__stream_encoder_delete(encoder->private_->stream_encoder); + + free(encoder->private_); + free(encoder->protected_); + free(encoder); +} + + +/*********************************************************************** + * + * Public class methods + * + ***********************************************************************/ + +FLAC_API FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_init(FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_ALREADY_INITIALIZED; + + if(0 == encoder->private_->seek_callback || 0 == encoder->private_->tell_callback || 0 == encoder->private_->write_callback) + return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_INVALID_CALLBACK; + + if(0 != encoder->private_->seek_table && !FLAC__format_seektable_is_legal(encoder->private_->seek_table)) + return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_INVALID_SEEKTABLE; + + /* + * These must be done before we init the stream encoder because that + * calls the write_callback, which uses these values. + */ + encoder->private_->first_seekpoint_to_check = 0; + encoder->private_->samples_written = 0; + encoder->protected_->streaminfo_offset = 0; + encoder->protected_->seektable_offset = 0; + encoder->protected_->audio_offset = 0; + + FLAC__stream_encoder_set_write_callback(encoder->private_->stream_encoder, write_callback_); + FLAC__stream_encoder_set_metadata_callback(encoder->private_->stream_encoder, metadata_callback_); + FLAC__stream_encoder_set_client_data(encoder->private_->stream_encoder, encoder); + + if(FLAC__stream_encoder_init(encoder->private_->stream_encoder) != FLAC__STREAM_ENCODER_OK) + return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR; + + /* + * Initializing the stream encoder writes all the metadata, so we + * save the stream offset now. + */ + if(encoder->private_->tell_callback(encoder, &encoder->protected_->audio_offset, encoder->private_->client_data) != FLAC__SEEKABLE_STREAM_ENCODER_TELL_STATUS_OK) + return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_TELL_ERROR; + + return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_OK; +} + +FLAC_API void FLAC__seekable_stream_encoder_finish(FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + + if(encoder->protected_->state == FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return; + + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + + FLAC__stream_encoder_finish(encoder->private_->stream_encoder); + + set_defaults_(encoder); + + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED; +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_verify(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_verify(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_streamable_subset(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_streamable_subset(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_do_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_do_mid_side_stereo(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_loose_mid_side_stereo(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_channels(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_channels(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_bits_per_sample(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_bits_per_sample(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_sample_rate(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_sample_rate(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_blocksize(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_blocksize(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_max_lpc_order(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_max_lpc_order(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_qlp_coeff_precision(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_qlp_coeff_precision(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_do_escape_coding(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_do_escape_coding(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_do_exhaustive_model_search(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_do_exhaustive_model_search(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_min_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_min_residual_partition_order(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_max_residual_partition_order(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_max_residual_partition_order(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_rice_parameter_search_dist(FLAC__SeekableStreamEncoder *encoder, unsigned value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_rice_parameter_search_dist(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_total_samples_estimate(FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + FLAC__ASSERT(0 != encoder->private_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_set_total_samples_estimate(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_metadata(FLAC__SeekableStreamEncoder *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_->stream_encoder); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + if(0 != metadata && num_blocks > 0) { + unsigned i; + for(i = 0; i < num_blocks; i++) { + if(0 != metadata[i] && metadata[i]->type == FLAC__METADATA_TYPE_SEEKTABLE) { + encoder->private_->seek_table = &metadata[i]->data.seek_table; + break; /* take only the first one */ + } + } + } + return FLAC__stream_encoder_set_metadata(encoder->private_->stream_encoder, metadata, num_blocks); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_seek_callback(FLAC__SeekableStreamEncoder *encoder, FLAC__SeekableStreamEncoderSeekCallback value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + encoder->private_->seek_callback = value; + return true; +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_tell_callback(FLAC__SeekableStreamEncoder *encoder, FLAC__SeekableStreamEncoderTellCallback value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + encoder->private_->tell_callback = value; + return true; +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_write_callback(FLAC__SeekableStreamEncoder *encoder, FLAC__SeekableStreamEncoderWriteCallback value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + encoder->private_->write_callback = value; + return true; +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_set_client_data(FLAC__SeekableStreamEncoder *encoder, void *value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + if(encoder->protected_->state != FLAC__SEEKABLE_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. + */ +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_disable_constant_subframes(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_disable_constant_subframes(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_disable_fixed_subframes(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_disable_fixed_subframes(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_disable_verbatim_subframes(FLAC__SeekableStreamEncoder *encoder, FLAC__bool value) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED) + return false; + return FLAC__stream_encoder_disable_verbatim_subframes(encoder->private_->stream_encoder, value); +} + +FLAC_API FLAC__SeekableStreamEncoderState FLAC__seekable_stream_encoder_get_state(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->protected_); + return encoder->protected_->state; +} + +FLAC_API FLAC__StreamEncoderState FLAC__seekable_stream_encoder_get_stream_encoder_state(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_state(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__StreamDecoderState FLAC__seekable_stream_encoder_get_verify_decoder_state(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_verify_decoder_state(encoder->private_->stream_encoder); +} + +FLAC_API const char *FLAC__seekable_stream_encoder_get_resolved_state_string(const FLAC__SeekableStreamEncoder *encoder) +{ + if(encoder->protected_->state != FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR) + return FLAC__SeekableStreamEncoderStateString[encoder->protected_->state]; + else + return FLAC__stream_encoder_get_resolved_state_string(encoder->private_->stream_encoder); +} + +FLAC_API void FLAC__seekable_stream_encoder_get_verify_decoder_error_stats(const FLAC__SeekableStreamEncoder *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_->stream_encoder, absolute_sample, frame_number, channel, sample, expected, got); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_get_verify(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_verify(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_get_streamable_subset(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_streamable_subset(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_get_do_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_do_mid_side_stereo(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_get_loose_mid_side_stereo(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_loose_mid_side_stereo(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_channels(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_channels(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_bits_per_sample(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_bits_per_sample(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_sample_rate(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_sample_rate(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_blocksize(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_blocksize(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_max_lpc_order(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_max_lpc_order(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_qlp_coeff_precision(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_qlp_coeff_precision(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_get_do_escape_coding(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_do_escape_coding(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_get_do_exhaustive_model_search(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_do_exhaustive_model_search(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_min_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_min_residual_partition_order(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_max_residual_partition_order(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_max_residual_partition_order(encoder->private_->stream_encoder); +} + +FLAC_API unsigned FLAC__seekable_stream_encoder_get_rice_parameter_search_dist(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_rice_parameter_search_dist(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__uint64 FLAC__seekable_stream_encoder_get_total_samples_estimate(const FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + return FLAC__stream_encoder_get_total_samples_estimate(encoder->private_->stream_encoder); +} + +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_process(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + if(!FLAC__stream_encoder_process(encoder->private_->stream_encoder, buffer, samples)) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR; + return false; + } + else + return true; +} + +/* 'samples' is channel-wide samples, e.g. for 1 second at 44100Hz, 'samples' = 44100 regardless of the number of channels */ +FLAC_API FLAC__bool FLAC__seekable_stream_encoder_process_interleaved(FLAC__SeekableStreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + if(!FLAC__stream_encoder_process_interleaved(encoder->private_->stream_encoder, buffer, samples)) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_STREAM_ENCODER_ERROR; + return false; + } + else + return true; +} + +/*********************************************************************** + * + * Private class methods + * + ***********************************************************************/ + +void set_defaults_(FLAC__SeekableStreamEncoder *encoder) +{ + FLAC__ASSERT(0 != encoder); + FLAC__ASSERT(0 != encoder->private_); + FLAC__ASSERT(0 != encoder->protected_); + + encoder->private_->seek_callback = 0; + encoder->private_->tell_callback = 0; + encoder->private_->write_callback = 0; + encoder->private_->client_data = 0; + + encoder->private_->seek_table = 0; +} + +FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *unused, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data) +{ + FLAC__SeekableStreamEncoder *encoder = (FLAC__SeekableStreamEncoder*)client_data; + FLAC__StreamEncoderWriteStatus status; + FLAC__uint64 output_position; + + (void)unused; /* silence compiler warning about unused parameter */ + FLAC__ASSERT(encoder->private_->stream_encoder == unused); + + if(encoder->private_->tell_callback(encoder, &output_position, encoder->private_->client_data) != FLAC__SEEKABLE_STREAM_ENCODER_TELL_STATUS_OK) + return encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_TELL_ERROR; + + /* + * Watch for the STREAMINFO block and first SEEKTABLE block to go by and store their offsets. + */ + if(samples == 0) { + FLAC__MetadataType type = (buffer[0] & 0x7f); + if(type == FLAC__METADATA_TYPE_STREAMINFO) + encoder->protected_->streaminfo_offset = output_position; + else if(type == FLAC__METADATA_TYPE_SEEKTABLE && encoder->protected_->seektable_offset == 0) + encoder->protected_->seektable_offset = output_position; + } + + /* + * Mark the current seek point if hit (if audio_offset == 0 that + * means we're still writing metadata and haven't hit the first + * frame yet) + */ + if(0 != encoder->private_->seek_table && encoder->protected_->audio_offset > 0 && encoder->private_->seek_table->num_points > 0) { + const unsigned blocksize = FLAC__stream_encoder_get_blocksize(encoder->private_->stream_encoder); + const FLAC__uint64 frame_first_sample = encoder->private_->samples_written; + const FLAC__uint64 frame_last_sample = frame_first_sample + (FLAC__uint64)blocksize - 1; + FLAC__uint64 test_sample; + unsigned i; + for(i = encoder->private_->first_seekpoint_to_check; i < encoder->private_->seek_table->num_points; i++) { + test_sample = encoder->private_->seek_table->points[i].sample_number; + if(test_sample > frame_last_sample) { + break; + } + else if(test_sample >= frame_first_sample) { + encoder->private_->seek_table->points[i].sample_number = frame_first_sample; + encoder->private_->seek_table->points[i].stream_offset = output_position - encoder->protected_->audio_offset; + encoder->private_->seek_table->points[i].frame_samples = blocksize; + encoder->private_->first_seekpoint_to_check++; + /* DO NOT: "break;" and here's why: + * The seektable template may contain more than one target + * sample for any given frame; we will keep looping, generating + * duplicate seekpoints for them, and we'll clean it up later, + * just before writing the seektable back to the metadata. + */ + } + else { + encoder->private_->first_seekpoint_to_check++; + } + } + } + + status = encoder->private_->write_callback(encoder, buffer, bytes, samples, current_frame, encoder->private_->client_data); + + if(status == FLAC__STREAM_ENCODER_WRITE_STATUS_OK) { + encoder->private_->samples_written += samples; + } + else + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_WRITE_ERROR; + + return status; +} + +void metadata_callback_(const FLAC__StreamEncoder *unused, const FLAC__StreamMetadata *metadata, void *client_data) +{ + FLAC__SeekableStreamEncoder *encoder = (FLAC__SeekableStreamEncoder*)client_data; + FLAC__byte b[max(6, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)]; + const FLAC__uint64 samples = metadata->data.stream_info.total_samples; + const unsigned min_framesize = metadata->data.stream_info.min_framesize; + const unsigned max_framesize = metadata->data.stream_info.max_framesize; + const unsigned bps = metadata->data.stream_info.bits_per_sample; + + FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO); + + /* We get called by the stream encoder when the encoding process + * has finished so that we can update the STREAMINFO and SEEKTABLE + * blocks. + */ + + (void)unused; /* silence compiler warning about unused parameter */ + FLAC__ASSERT(encoder->private_->stream_encoder == unused); + + /*@@@ reopen callback here? The docs currently require user to open files in update mode from the start */ + + /* All this is based on intimate knowledge of the stream header + * layout, but a change to the header format that would break this + * would also break all streams encoded in the previous format. + */ + + /* + * Write MD5 signature + */ + { + const unsigned md5_offset = + FLAC__STREAM_METADATA_HEADER_LENGTH + + ( + FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN + + FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN + ) / 8; + + if(encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + md5_offset, encoder->private_->client_data) != FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_SEEK_ERROR; + return; + } + if(encoder->private_->write_callback(encoder, metadata->data.stream_info.md5sum, 16, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_WRITE_ERROR; + return; + } + } + + /* + * Write total samples + */ + { + const unsigned total_samples_byte_offset = + FLAC__STREAM_METADATA_HEADER_LENGTH + + ( + FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN + + FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN + - 4 + ) / 8; + + b[0] = ((FLAC__byte)(bps-1) << 4) | (FLAC__byte)((samples >> 32) & 0x0F); + b[1] = (FLAC__byte)((samples >> 24) & 0xFF); + b[2] = (FLAC__byte)((samples >> 16) & 0xFF); + b[3] = (FLAC__byte)((samples >> 8) & 0xFF); + b[4] = (FLAC__byte)(samples & 0xFF); + if(encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + total_samples_byte_offset, encoder->private_->client_data) != FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_SEEK_ERROR; + return; + } + if(encoder->private_->write_callback(encoder, b, 5, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_WRITE_ERROR; + return; + } + } + + /* + * Write min/max framesize + */ + { + const unsigned min_framesize_offset = + FLAC__STREAM_METADATA_HEADER_LENGTH + + ( + FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN + + FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN + ) / 8; + + b[0] = (FLAC__byte)((min_framesize >> 16) & 0xFF); + b[1] = (FLAC__byte)((min_framesize >> 8) & 0xFF); + b[2] = (FLAC__byte)(min_framesize & 0xFF); + b[3] = (FLAC__byte)((max_framesize >> 16) & 0xFF); + b[4] = (FLAC__byte)((max_framesize >> 8) & 0xFF); + b[5] = (FLAC__byte)(max_framesize & 0xFF); + if(encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + min_framesize_offset, encoder->private_->client_data) != FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_SEEK_ERROR; + return; + } + if(encoder->private_->write_callback(encoder, b, 6, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_WRITE_ERROR; + return; + } + } + + /* + * Write seektable + */ + if(0 != encoder->private_->seek_table && encoder->private_->seek_table->num_points > 0 && encoder->protected_->seektable_offset > 0) { + unsigned i; + + FLAC__format_seektable_sort(encoder->private_->seek_table); + + FLAC__ASSERT(FLAC__format_seektable_is_legal(encoder->private_->seek_table)); + + if(encoder->private_->seek_callback(encoder, encoder->protected_->seektable_offset + FLAC__STREAM_METADATA_HEADER_LENGTH, encoder->private_->client_data) != FLAC__SEEKABLE_STREAM_ENCODER_SEEK_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_SEEK_ERROR; + return; + } + + for(i = 0; i < encoder->private_->seek_table->num_points; i++) { + FLAC__uint64 xx; + unsigned x; + xx = encoder->private_->seek_table->points[i].sample_number; + b[7] = (FLAC__byte)xx; xx >>= 8; + b[6] = (FLAC__byte)xx; xx >>= 8; + b[5] = (FLAC__byte)xx; xx >>= 8; + b[4] = (FLAC__byte)xx; xx >>= 8; + b[3] = (FLAC__byte)xx; xx >>= 8; + b[2] = (FLAC__byte)xx; xx >>= 8; + b[1] = (FLAC__byte)xx; xx >>= 8; + b[0] = (FLAC__byte)xx; xx >>= 8; + xx = encoder->private_->seek_table->points[i].stream_offset; + b[15] = (FLAC__byte)xx; xx >>= 8; + b[14] = (FLAC__byte)xx; xx >>= 8; + b[13] = (FLAC__byte)xx; xx >>= 8; + b[12] = (FLAC__byte)xx; xx >>= 8; + b[11] = (FLAC__byte)xx; xx >>= 8; + b[10] = (FLAC__byte)xx; xx >>= 8; + b[9] = (FLAC__byte)xx; xx >>= 8; + b[8] = (FLAC__byte)xx; xx >>= 8; + x = encoder->private_->seek_table->points[i].frame_samples; + b[17] = (FLAC__byte)x; x >>= 8; + b[16] = (FLAC__byte)x; x >>= 8; + if(encoder->private_->write_callback(encoder, b, 18, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) { + encoder->protected_->state = FLAC__SEEKABLE_STREAM_ENCODER_WRITE_ERROR; + return; + } + } + } +} |