blob: 23cc22dbd320d94a06eb5ea976554dac2afb8af5 [file] [log] [blame]
/* libFLAC - Free Lossless Audio Codec library
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2014 Xiph.Org Foundation
*
* 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.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <limits.h>
#include <stdio.h>
#include <stdlib.h> /* for malloc() */
#include <string.h> /* for memcpy() */
#include <sys/types.h> /* for off_t */
#include "share/compat.h"
#include "FLAC/assert.h"
#include "FLAC/stream_decoder.h"
#include "protected/stream_encoder.h"
#include "private/bitwriter.h"
#include "private/bitmath.h"
#include "private/crc.h"
#include "private/cpu.h"
#include "private/fixed.h"
#include "private/format.h"
#include "private/lpc.h"
#include "private/md5.h"
#include "private/memory.h"
#include "private/macros.h"
#if FLAC__HAS_OGG
#include "private/ogg_helper.h"
#include "private/ogg_mapping.h"
#endif
#include "private/stream_encoder.h"
#include "private/stream_encoder_framing.h"
#include "private/window.h"
#include "share/alloc.h"
#include "share/private.h"
/* Exact Rice codeword length calculation is off by default. The simple
* (and fast) estimation (of how many bits a residual value will be
* encoded with) in this encoder is very good, almost always yielding
* compression within 0.1% of exact calculation.
*/
#undef EXACT_RICE_BITS_CALCULATION
/* Rice parameter searching is off by default. The simple (and fast)
* parameter estimation in this encoder is very good, almost always
* yielding compression within 0.1% of the optimal parameters.
*/
#undef ENABLE_RICE_PARAMETER_SEARCH
typedef struct {
FLAC__int32 *data[FLAC__MAX_CHANNELS];
unsigned size; /* of each data[] in samples */
unsigned tail;
} verify_input_fifo;
typedef struct {
const FLAC__byte *data;
unsigned capacity;
unsigned bytes;
} verify_output;
typedef enum {
ENCODER_IN_MAGIC = 0,
ENCODER_IN_METADATA = 1,
ENCODER_IN_AUDIO = 2
} EncoderStateHint;
static struct CompressionLevels {
FLAC__bool do_mid_side_stereo;
FLAC__bool loose_mid_side_stereo;
unsigned max_lpc_order;
unsigned qlp_coeff_precision;
FLAC__bool do_qlp_coeff_prec_search;
FLAC__bool do_escape_coding;
FLAC__bool do_exhaustive_model_search;
unsigned min_residual_partition_order;
unsigned max_residual_partition_order;
unsigned rice_parameter_search_dist;
const char *apodization;
} compression_levels_[] = {
{ false, false, 0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
{ true , true , 0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
{ true , false, 0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
{ false, false, 6, 0, false, false, false, 0, 4, 0, "tukey(5e-1)" },
{ true , true , 8, 0, false, false, false, 0, 4, 0, "tukey(5e-1)" },
{ true , false, 8, 0, false, false, false, 0, 5, 0, "tukey(5e-1)" },
{ true , false, 8, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2)" },
{ true , false, 12, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2)" },
{ true , false, 12, 0, false, false, false, 0, 6, 0, "tukey(5e-1);partial_tukey(2);punchout_tukey(3)" }
/* here we use locale-independent 5e-1 instead of 0.5 or 0,5 */
};
/***********************************************************************
*
* Private class method prototypes
*
***********************************************************************/
static void set_defaults_(FLAC__StreamEncoder *encoder);
static void free_(FLAC__StreamEncoder *encoder);
static FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, unsigned new_blocksize);
static FLAC__bool write_bitbuffer_(FLAC__StreamEncoder *encoder, unsigned samples, FLAC__bool is_last_block);
static FLAC__StreamEncoderWriteStatus write_frame_(FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, FLAC__bool is_last_block);
static void update_metadata_(const FLAC__StreamEncoder *encoder);
#if FLAC__HAS_OGG
static void update_ogg_metadata_(FLAC__StreamEncoder *encoder);
#endif
static FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block, FLAC__bool is_last_block);
static FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder, FLAC__bool is_fractional_block);
static FLAC__bool process_subframe_(
FLAC__StreamEncoder *encoder,
unsigned min_partition_order,
unsigned max_partition_order,
const FLAC__FrameHeader *frame_header,
unsigned subframe_bps,
const FLAC__int32 integer_signal[],
FLAC__Subframe *subframe[2],
FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents[2],
FLAC__int32 *residual[2],
unsigned *best_subframe,
unsigned *best_bits
);
static FLAC__bool add_subframe_(
FLAC__StreamEncoder *encoder,
unsigned blocksize,
unsigned subframe_bps,
const FLAC__Subframe *subframe,
FLAC__BitWriter *frame
);
static unsigned evaluate_constant_subframe_(
FLAC__StreamEncoder *encoder,
const FLAC__int32 signal,
unsigned blocksize,
unsigned subframe_bps,
FLAC__Subframe *subframe
);
static unsigned evaluate_fixed_subframe_(
FLAC__StreamEncoder *encoder,
const FLAC__int32 signal[],
FLAC__int32 residual[],
FLAC__uint64 abs_residual_partition_sums[],
unsigned raw_bits_per_partition[],
unsigned blocksize,
unsigned subframe_bps,
unsigned order,
unsigned rice_parameter,
unsigned rice_parameter_limit,
unsigned min_partition_order,
unsigned max_partition_order,
FLAC__bool do_escape_coding,
unsigned rice_parameter_search_dist,
FLAC__Subframe *subframe,
FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
);
#ifndef FLAC__INTEGER_ONLY_LIBRARY
static unsigned evaluate_lpc_subframe_(
FLAC__StreamEncoder *encoder,
const FLAC__int32 signal[],
FLAC__int32 residual[],
FLAC__uint64 abs_residual_partition_sums[],
unsigned raw_bits_per_partition[],
const FLAC__real lp_coeff[],
unsigned blocksize,
unsigned subframe_bps,
unsigned order,
unsigned qlp_coeff_precision,
unsigned rice_parameter,
unsigned rice_parameter_limit,
unsigned min_partition_order,
unsigned max_partition_order,
FLAC__bool do_escape_coding,
unsigned rice_parameter_search_dist,
FLAC__Subframe *subframe,
FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
);
#endif
static unsigned evaluate_verbatim_subframe_(
FLAC__StreamEncoder *encoder,
const FLAC__int32 signal[],
unsigned blocksize,
unsigned subframe_bps,
FLAC__Subframe *subframe
);
static unsigned find_best_partition_order_(
struct FLAC__StreamEncoderPrivate *private_,
const FLAC__int32 residual[],
FLAC__uint64 abs_residual_partition_sums[],
unsigned raw_bits_per_partition[],
unsigned residual_samples,
unsigned predictor_order,
unsigned rice_parameter,
unsigned rice_parameter_limit,
unsigned min_partition_order,
unsigned max_partition_order,
unsigned bps,
FLAC__bool do_escape_coding,
unsigned rice_parameter_search_dist,
FLAC__EntropyCodingMethod *best_ecm
);
static void precompute_partition_info_sums_(
const FLAC__int32 residual[],
FLAC__uint64 abs_residual_partition_sums[],
unsigned residual_samples,
unsigned predictor_order,
unsigned min_partition_order,
unsigned max_partition_order,
unsigned bps
);
static void precompute_partition_info_escapes_(
const FLAC__int32 residual[],
unsigned raw_bits_per_partition[],
unsigned residual_samples,
unsigned predictor_order,
unsigned min_partition_order,
unsigned max_partition_order
);
static FLAC__bool set_partitioned_rice_(
#ifdef EXACT_RICE_BITS_CALCULATION
const FLAC__int32 residual[],
#endif
const FLAC__uint64 abs_residual_partition_sums[],
const unsigned raw_bits_per_partition[],
const unsigned residual_samples,
const unsigned predictor_order,
const unsigned suggested_rice_parameter,
const unsigned rice_parameter_limit,
const unsigned rice_parameter_search_dist,
const unsigned partition_order,
const FLAC__bool search_for_escapes,
FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents,
unsigned *bits
);
static unsigned get_wasted_bits_(FLAC__int32 signal[], unsigned samples);
/* verify-related routines: */
static void append_to_verify_fifo_(
verify_input_fifo *fifo,
const FLAC__int32 * const input[],
unsigned input_offset,
unsigned channels,
unsigned wide_samples
);
static void append_to_verify_fifo_interleaved_(
verify_input_fifo *fifo,
const FLAC__int32 input[],
unsigned input_offset,
unsigned channels,
unsigned wide_samples
);
static FLAC__StreamDecoderReadStatus verify_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
static FLAC__StreamDecoderWriteStatus verify_write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
static void verify_metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
static void verify_error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
static FLAC__StreamEncoderReadStatus file_read_callback_(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
static FLAC__StreamEncoderSeekStatus file_seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
static FLAC__StreamEncoderTellStatus file_tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
static FLAC__StreamEncoderWriteStatus file_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, unsigned samples, unsigned current_frame, void *client_data);
static FILE *get_binary_stdout_(void);
/***********************************************************************
*
* Private class data
*
***********************************************************************/
typedef struct FLAC__StreamEncoderPrivate {
unsigned input_capacity; /* current size (in samples) of the signal and residual buffers */
FLAC__int32 *integer_signal[FLAC__MAX_CHANNELS]; /* the integer version of the input signal */
FLAC__int32 *integer_signal_mid_side[2]; /* the integer version of the mid-side input signal (stereo only) */
#ifndef FLAC__INTEGER_ONLY_LIBRARY
FLAC__real *real_signal[FLAC__MAX_CHANNELS]; /* (@@@ currently unused) the floating-point version of the input signal */
FLAC__real *real_signal_mid_side[2]; /* (@@@ currently unused) the floating-point version of the mid-side input signal (stereo only) */
FLAC__real *window[FLAC__MAX_APODIZATION_FUNCTIONS]; /* the pre-computed floating-point window for each apodization function */
FLAC__real *windowed_signal; /* the integer_signal[] * current window[] */
#endif
unsigned subframe_bps[FLAC__MAX_CHANNELS]; /* the effective bits per sample of the input signal (stream bps - wasted bits) */
unsigned subframe_bps_mid_side[2]; /* the effective bits per sample of the mid-side input signal (stream bps - wasted bits + 0/1) */
FLAC__int32 *residual_workspace[FLAC__MAX_CHANNELS][2]; /* each channel has a candidate and best workspace where the subframe residual signals will be stored */
FLAC__int32 *residual_workspace_mid_side[2][2];
FLAC__Subframe subframe_workspace[FLAC__MAX_CHANNELS][2];
FLAC__Subframe subframe_workspace_mid_side[2][2];
FLAC__Subframe *subframe_workspace_ptr[FLAC__MAX_CHANNELS][2];
FLAC__Subframe *subframe_workspace_ptr_mid_side[2][2];
FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace[FLAC__MAX_CHANNELS][2];
FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace_mid_side[FLAC__MAX_CHANNELS][2];
FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr[FLAC__MAX_CHANNELS][2];
FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr_mid_side[FLAC__MAX_CHANNELS][2];
unsigned best_subframe[FLAC__MAX_CHANNELS]; /* index (0 or 1) into 2nd dimension of the above workspaces */
unsigned best_subframe_mid_side[2];
unsigned best_subframe_bits[FLAC__MAX_CHANNELS]; /* size in bits of the best subframe for each channel */
unsigned best_subframe_bits_mid_side[2];
FLAC__uint64 *abs_residual_partition_sums; /* workspace where the sum of abs(candidate residual) for each partition is stored */
unsigned *raw_bits_per_partition; /* workspace where the sum of silog2(candidate residual) for each partition is stored */
FLAC__BitWriter *frame; /* the current frame being worked on */
unsigned loose_mid_side_stereo_frames; /* rounded number of frames the encoder will use before trying both independent and mid/side frames again */
unsigned loose_mid_side_stereo_frame_count; /* number of frames using the current channel assignment */
FLAC__ChannelAssignment last_channel_assignment;
FLAC__StreamMetadata streaminfo; /* scratchpad for STREAMINFO as it is built */
FLAC__StreamMetadata_SeekTable *seek_table; /* pointer into encoder->protected_->metadata_ where the seek table is */
unsigned current_sample_number;
unsigned current_frame_number;
FLAC__MD5Context md5context;
FLAC__CPUInfo cpuinfo;
void (*local_precompute_partition_info_sums)(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[], unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps);
#ifndef FLAC__INTEGER_ONLY_LIBRARY
unsigned (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
unsigned (*local_fixed_compute_best_predictor_wide)(const FLAC__int32 data[], unsigned data_len, FLAC__float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
#else
unsigned (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
unsigned (*local_fixed_compute_best_predictor_wide)(const FLAC__int32 data[], unsigned data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
#endif
#ifndef FLAC__INTEGER_ONLY_LIBRARY
void (*local_lpc_compute_autocorrelation)(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
void (*local_lpc_compute_residual_from_qlp_coefficients)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
void (*local_lpc_compute_residual_from_qlp_coefficients_64bit)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
void (*local_lpc_compute_residual_from_qlp_coefficients_16bit)(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[]);
#endif
FLAC__bool use_wide_by_block; /* use slow 64-bit versions of some functions because of the block size */
FLAC__bool use_wide_by_partition; /* use slow 64-bit versions of some functions because of the min partition order and blocksize */
FLAC__bool use_wide_by_order; /* use slow 64-bit versions of some functions because of the lpc order */
FLAC__bool disable_constant_subframes;
FLAC__bool disable_fixed_subframes;
FLAC__bool disable_verbatim_subframes;
#if FLAC__HAS_OGG
FLAC__bool is_ogg;
#endif
FLAC__StreamEncoderReadCallback read_callback; /* currently only needed for Ogg FLAC */
FLAC__StreamEncoderSeekCallback seek_callback;
FLAC__StreamEncoderTellCallback tell_callback;
FLAC__StreamEncoderWriteCallback write_callback;
FLAC__StreamEncoderMetadataCallback metadata_callback;
FLAC__StreamEncoderProgressCallback progress_callback;
void *client_data;
unsigned first_seekpoint_to_check;
FILE *file; /* only used when encoding to a file */
FLAC__uint64 bytes_written;
FLAC__uint64 samples_written;
unsigned frames_written;
unsigned total_frames_estimate;
/* unaligned (original) pointers to allocated data */
FLAC__int32 *integer_signal_unaligned[FLAC__MAX_CHANNELS];
FLAC__int32 *integer_signal_mid_side_unaligned[2];
#ifndef FLAC__INTEGER_ONLY_LIBRARY
FLAC__real *real_signal_unaligned[FLAC__MAX_CHANNELS]; /* (@@@ currently unused) */
FLAC__real *real_signal_mid_side_unaligned[2]; /* (@@@ currently unused) */
FLAC__real *window_unaligned[FLAC__MAX_APODIZATION_FUNCTIONS];
FLAC__real *windowed_signal_unaligned;
#endif
FLAC__int32 *residual_workspace_unaligned[FLAC__MAX_CHANNELS][2];
FLAC__int32 *residual_workspace_mid_side_unaligned[2][2];
FLAC__uint64 *abs_residual_partition_sums_unaligned;
unsigned *raw_bits_per_partition_unaligned;
/*
* These fields have been moved here from private function local
* declarations merely to save stack space during encoding.
*/
#ifndef FLAC__INTEGER_ONLY_LIBRARY
FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from process_subframe_() */
#endif
FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_extra[2]; /* from find_best_partition_order_() */
/*
* The data for the verify section
*/
struct {
FLAC__StreamDecoder *decoder;
EncoderStateHint state_hint;
FLAC__bool needs_magic_hack;
verify_input_fifo input_fifo;
verify_output output;
struct {
FLAC__uint64 absolute_sample;
unsigned frame_number;
unsigned channel;
unsigned sample;
FLAC__int32 expected;
FLAC__int32 got;
} error_stats;
} verify;
FLAC__bool is_being_deleted; /* if true, call to ..._finish() from ..._delete() will not call the callbacks */
} FLAC__StreamEncoderPrivate;
/***********************************************************************
*
* Public static class data
*
***********************************************************************/
FLAC_API const char * const FLAC__StreamEncoderStateString[] = {
"FLAC__STREAM_ENCODER_OK",
"FLAC__STREAM_ENCODER_UNINITIALIZED",
"FLAC__STREAM_ENCODER_OGG_ERROR",
"FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR",
"FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA",
"FLAC__STREAM_ENCODER_CLIENT_ERROR",
"FLAC__STREAM_ENCODER_IO_ERROR",
"FLAC__STREAM_ENCODER_FRAMING_ERROR",
"FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR"
};
FLAC_API const char * const FLAC__StreamEncoderInitStatusString[] = {
"FLAC__STREAM_ENCODER_INIT_STATUS_OK",
"FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR",
"FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION",
"FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER",
"FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE",
"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA",
"FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED"
};
FLAC_API const char * const FLAC__StreamEncoderReadStatusString[] = {
"FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE",
"FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM",
"FLAC__STREAM_ENCODER_READ_STATUS_ABORT",
"FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED"
};
FLAC_API const char * const FLAC__StreamEncoderWriteStatusString[] = {
"FLAC__STREAM_ENCODER_WRITE_STATUS_OK",
"FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR"
};
FLAC_API const char * const FLAC__StreamEncoderSeekStatusString[] = {
"FLAC__STREAM_ENCODER_SEEK_STATUS_OK",
"FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR",
"FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED"
};
FLAC_API const char * const FLAC__StreamEncoderTellStatusString[] = {
"FLAC__STREAM_ENCODER_TELL_STATUS_OK",
"FLAC__STREAM_ENCODER_TELL_STATUS_ERROR",
"FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED"
};
/* Number of samples that will be overread to watch for end of stream. By
* 'overread', we mean that the FLAC__stream_encoder_process*() calls will
* always try to read blocksize+1 samples before encoding a block, so that
* even if the stream has a total sample count that is an integral multiple
* of the blocksize, we will still notice when we are encoding the last
* block. This is needed, for example, to correctly set the end-of-stream
* marker in Ogg FLAC.
*
* WATCHOUT: some parts of the code assert that OVERREAD_ == 1 and there's
* not really any reason to change it.
*/
static const unsigned OVERREAD_ = 1;
/***********************************************************************
*
* Class constructor/destructor
*
*/
FLAC_API FLAC__StreamEncoder *FLAC__stream_encoder_new(void)
{
FLAC__StreamEncoder *encoder;
unsigned i;
FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
encoder = calloc(1, sizeof(FLAC__StreamEncoder));
if(encoder == 0) {
return 0;
}
encoder->protected_ = calloc(1, sizeof(FLAC__StreamEncoderProtected));
if(encoder->protected_ == 0) {
free(encoder);
return 0;
}
encoder->private_ = calloc(1, sizeof(FLAC__StreamEncoderPrivate));
if(encoder->private_ == 0) {
free(encoder->protected_);
free(encoder);
return 0;
}
encoder->private_->frame = FLAC__bitwriter_new();
if(encoder->private_->frame == 0) {
free(encoder->private_);
free(encoder->protected_);
free(encoder);
return 0;
}
encoder->private_->file = 0;
set_defaults_(encoder);
encoder->private_->is_being_deleted = false;
for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
encoder->private_->subframe_workspace_ptr[i][0] = &encoder->private_->subframe_workspace[i][0];
encoder->private_->subframe_workspace_ptr[i][1] = &encoder->private_->subframe_workspace[i][1];
}
for(i = 0; i < 2; i++) {
encoder->private_->subframe_workspace_ptr_mid_side[i][0] = &encoder->private_->subframe_workspace_mid_side[i][0];
encoder->private_->subframe_workspace_ptr_mid_side[i][1] = &encoder->private_->subframe_workspace_mid_side[i][1];
}
for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
encoder->private_->partitioned_rice_contents_workspace_ptr[i][0] = &encoder->private_->partitioned_rice_contents_workspace[i][0];
encoder->private_->partitioned_rice_contents_workspace_ptr[i][1] = &encoder->private_->partitioned_rice_contents_workspace[i][1];
}
for(i = 0; i < 2; i++) {
encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][0] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0];
encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][1] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1];
}
for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
}
for(i = 0; i < 2; i++) {
FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
}
for(i = 0; i < 2; i++)
FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_extra[i]);
encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
return encoder;
}
FLAC_API void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder)
{
unsigned i;
if (encoder == NULL)
return ;
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->private_->frame);
encoder->private_->is_being_deleted = true;
(void)FLAC__stream_encoder_finish(encoder);
if(0 != encoder->private_->verify.decoder)
FLAC__stream_decoder_delete(encoder->private_->verify.decoder);
for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
}
for(i = 0; i < 2; i++) {
FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
}
for(i = 0; i < 2; i++)
FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_extra[i]);
FLAC__bitwriter_delete(encoder->private_->frame);
free(encoder->private_);
free(encoder->protected_);
free(encoder);
}
/***********************************************************************
*
* Public class methods
*
***********************************************************************/
static FLAC__StreamEncoderInitStatus init_stream_internal_(
FLAC__StreamEncoder *encoder,
FLAC__StreamEncoderReadCallback read_callback,
FLAC__StreamEncoderWriteCallback write_callback,
FLAC__StreamEncoderSeekCallback seek_callback,
FLAC__StreamEncoderTellCallback tell_callback,
FLAC__StreamEncoderMetadataCallback metadata_callback,
void *client_data,
FLAC__bool is_ogg
)
{
unsigned i;
FLAC__bool metadata_has_seektable, metadata_has_vorbis_comment, metadata_picture_has_type1, metadata_picture_has_type2;
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
#if !FLAC__HAS_OGG
if(is_ogg)
return FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
#endif
if(0 == write_callback || (seek_callback && 0 == tell_callback))
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS;
if(encoder->protected_->channels == 0 || encoder->protected_->channels > FLAC__MAX_CHANNELS)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS;
if(encoder->protected_->channels != 2) {
encoder->protected_->do_mid_side_stereo = false;
encoder->protected_->loose_mid_side_stereo = false;
}
else if(!encoder->protected_->do_mid_side_stereo)
encoder->protected_->loose_mid_side_stereo = false;
if(encoder->protected_->bits_per_sample >= 32)
encoder->protected_->do_mid_side_stereo = false; /* since we currenty do 32-bit math, the side channel would have 33 bps and overflow */
if(encoder->protected_->bits_per_sample < FLAC__MIN_BITS_PER_SAMPLE || encoder->protected_->bits_per_sample > FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE;
if(!FLAC__format_sample_rate_is_valid(encoder->protected_->sample_rate))
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE;
if(encoder->protected_->blocksize == 0) {
if(encoder->protected_->max_lpc_order == 0)
encoder->protected_->blocksize = 1152;
else
encoder->protected_->blocksize = 4096;
}
if(encoder->protected_->blocksize < FLAC__MIN_BLOCK_SIZE || encoder->protected_->blocksize > FLAC__MAX_BLOCK_SIZE)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE;
if(encoder->protected_->max_lpc_order > FLAC__MAX_LPC_ORDER)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER;
if(encoder->protected_->blocksize < encoder->protected_->max_lpc_order)
return FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER;
if(encoder->protected_->qlp_coeff_precision == 0) {
if(encoder->protected_->bits_per_sample < 16) {
/* @@@ need some data about how to set this here w.r.t. blocksize and sample rate */
/* @@@ until then we'll make a guess */
encoder->protected_->qlp_coeff_precision = flac_max(FLAC__MIN_QLP_COEFF_PRECISION, 2 + encoder->protected_->bits_per_sample / 2);
}
else if(encoder->protected_->bits_per_sample == 16) {
if(encoder->protected_->blocksize <= 192)
encoder->protected_->qlp_coeff_precision = 7;
else if(encoder->protected_->blocksize <= 384)
encoder->protected_->qlp_coeff_precision = 8;
else if(encoder->protected_->blocksize <= 576)
encoder->protected_->qlp_coeff_precision = 9;
else if(encoder->protected_->blocksize <= 1152)
encoder->protected_->qlp_coeff_precision = 10;
else if(encoder->protected_->blocksize <= 2304)
encoder->protected_->qlp_coeff_precision = 11;
else if(encoder->protected_->blocksize <= 4608)
encoder->protected_->qlp_coeff_precision = 12;
else
encoder->protected_->qlp_coeff_precision = 13;
}
else {
if(encoder->protected_->blocksize <= 384)
encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-2;
else if(encoder->protected_->blocksize <= 1152)
encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-1;
else
encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION;
}
FLAC__ASSERT(encoder->protected_->qlp_coeff_precision <= FLAC__MAX_QLP_COEFF_PRECISION);
}
else if(encoder->protected_->qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION || encoder->protected_->qlp_coeff_precision > FLAC__MAX_QLP_COEFF_PRECISION)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION;
if(encoder->protected_->streamable_subset) {
if(!FLAC__format_blocksize_is_subset(encoder->protected_->blocksize, encoder->protected_->sample_rate))
return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
if(!FLAC__format_sample_rate_is_subset(encoder->protected_->sample_rate))
return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
if(
encoder->protected_->bits_per_sample != 8 &&
encoder->protected_->bits_per_sample != 12 &&
encoder->protected_->bits_per_sample != 16 &&
encoder->protected_->bits_per_sample != 20 &&
encoder->protected_->bits_per_sample != 24
)
return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
if(encoder->protected_->max_residual_partition_order > FLAC__SUBSET_MAX_RICE_PARTITION_ORDER)
return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
if(
encoder->protected_->sample_rate <= 48000 &&
(
encoder->protected_->blocksize > FLAC__SUBSET_MAX_BLOCK_SIZE_48000HZ ||
encoder->protected_->max_lpc_order > FLAC__SUBSET_MAX_LPC_ORDER_48000HZ
)
) {
return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
}
}
if(encoder->protected_->max_residual_partition_order >= (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
encoder->protected_->max_residual_partition_order = (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN) - 1;
if(encoder->protected_->min_residual_partition_order >= encoder->protected_->max_residual_partition_order)
encoder->protected_->min_residual_partition_order = encoder->protected_->max_residual_partition_order;
#if FLAC__HAS_OGG
/* reorder metadata if necessary to ensure that any VORBIS_COMMENT is the first, according to the mapping spec */
if(is_ogg && 0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 1) {
unsigned i1;
for(i1 = 1; i1 < encoder->protected_->num_metadata_blocks; i1++) {
if(0 != encoder->protected_->metadata[i1] && encoder->protected_->metadata[i1]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
FLAC__StreamMetadata *vc = encoder->protected_->metadata[i1];
for( ; i1 > 0; i1--)
encoder->protected_->metadata[i1] = encoder->protected_->metadata[i1-1];
encoder->protected_->metadata[0] = vc;
break;
}
}
}
#endif
/* keep track of any SEEKTABLE block */
if(0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0) {
unsigned i2;
for(i2 = 0; i2 < encoder->protected_->num_metadata_blocks; i2++) {
if(0 != encoder->protected_->metadata[i2] && encoder->protected_->metadata[i2]->type == FLAC__METADATA_TYPE_SEEKTABLE) {
encoder->private_->seek_table = &encoder->protected_->metadata[i2]->data.seek_table;
break; /* take only the first one */
}
}
}
/* validate metadata */
if(0 == encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
metadata_has_seektable = false;
metadata_has_vorbis_comment = false;
metadata_picture_has_type1 = false;
metadata_picture_has_type2 = false;
for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
const FLAC__StreamMetadata *m = encoder->protected_->metadata[i];
if(m->type == FLAC__METADATA_TYPE_STREAMINFO)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
else if(m->type == FLAC__METADATA_TYPE_SEEKTABLE) {
if(metadata_has_seektable) /* only one is allowed */
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
metadata_has_seektable = true;
if(!FLAC__format_seektable_is_legal(&m->data.seek_table))
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
}
else if(m->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
if(metadata_has_vorbis_comment) /* only one is allowed */
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
metadata_has_vorbis_comment = true;
}
else if(m->type == FLAC__METADATA_TYPE_CUESHEET) {
if(!FLAC__format_cuesheet_is_legal(&m->data.cue_sheet, m->data.cue_sheet.is_cd, /*violation=*/0))
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
}
else if(m->type == FLAC__METADATA_TYPE_PICTURE) {
if(!FLAC__format_picture_is_legal(&m->data.picture, /*violation=*/0))
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD) {
if(metadata_picture_has_type1) /* there should only be 1 per stream */
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
metadata_picture_has_type1 = true;
/* standard icon must be 32x32 pixel PNG */
if(
m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD &&
(
(strcmp(m->data.picture.mime_type, "image/png") && strcmp(m->data.picture.mime_type, "-->")) ||
m->data.picture.width != 32 ||
m->data.picture.height != 32
)
)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
}
else if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON) {
if(metadata_picture_has_type2) /* there should only be 1 per stream */
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
metadata_picture_has_type2 = true;
}
}
}
encoder->private_->input_capacity = 0;
for(i = 0; i < encoder->protected_->channels; i++) {
encoder->private_->integer_signal_unaligned[i] = encoder->private_->integer_signal[i] = 0;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
encoder->private_->real_signal_unaligned[i] = encoder->private_->real_signal[i] = 0;
#endif
}
for(i = 0; i < 2; i++) {
encoder->private_->integer_signal_mid_side_unaligned[i] = encoder->private_->integer_signal_mid_side[i] = 0;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
encoder->private_->real_signal_mid_side_unaligned[i] = encoder->private_->real_signal_mid_side[i] = 0;
#endif
}
#ifndef FLAC__INTEGER_ONLY_LIBRARY
for(i = 0; i < encoder->protected_->num_apodizations; i++)
encoder->private_->window_unaligned[i] = encoder->private_->window[i] = 0;
encoder->private_->windowed_signal_unaligned = encoder->private_->windowed_signal = 0;
#endif
for(i = 0; i < encoder->protected_->channels; i++) {
encoder->private_->residual_workspace_unaligned[i][0] = encoder->private_->residual_workspace[i][0] = 0;
encoder->private_->residual_workspace_unaligned[i][1] = encoder->private_->residual_workspace[i][1] = 0;
encoder->private_->best_subframe[i] = 0;
}
for(i = 0; i < 2; i++) {
encoder->private_->residual_workspace_mid_side_unaligned[i][0] = encoder->private_->residual_workspace_mid_side[i][0] = 0;
encoder->private_->residual_workspace_mid_side_unaligned[i][1] = encoder->private_->residual_workspace_mid_side[i][1] = 0;
encoder->private_->best_subframe_mid_side[i] = 0;
}
encoder->private_->abs_residual_partition_sums_unaligned = encoder->private_->abs_residual_partition_sums = 0;
encoder->private_->raw_bits_per_partition_unaligned = encoder->private_->raw_bits_per_partition = 0;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
encoder->private_->loose_mid_side_stereo_frames = (unsigned)((FLAC__double)encoder->protected_->sample_rate * 0.4 / (FLAC__double)encoder->protected_->blocksize + 0.5);
#else
/* 26214 is the approximate fixed-point equivalent to 0.4 (0.4 * 2^16) */
/* sample rate can be up to 655350 Hz, and thus use 20 bits, so we do the multiply&divide by hand */
FLAC__ASSERT(FLAC__MAX_SAMPLE_RATE <= 655350);
FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535);
FLAC__ASSERT(encoder->protected_->sample_rate <= 655350);
FLAC__ASSERT(encoder->protected_->blocksize <= 65535);
encoder->private_->loose_mid_side_stereo_frames = (unsigned)FLAC__fixedpoint_trunc((((FLAC__uint64)(encoder->protected_->sample_rate) * (FLAC__uint64)(26214)) << 16) / (encoder->protected_->blocksize<<16) + FLAC__FP_ONE_HALF);
#endif
if(encoder->private_->loose_mid_side_stereo_frames == 0)
encoder->private_->loose_mid_side_stereo_frames = 1;
encoder->private_->loose_mid_side_stereo_frame_count = 0;
encoder->private_->current_sample_number = 0;
encoder->private_->current_frame_number = 0;
encoder->private_->use_wide_by_block = (encoder->protected_->bits_per_sample + FLAC__bitmath_ilog2(encoder->protected_->blocksize)+1 > 30);
encoder->private_->use_wide_by_order = (encoder->protected_->bits_per_sample + FLAC__bitmath_ilog2(flac_max(encoder->protected_->max_lpc_order, FLAC__MAX_FIXED_ORDER))+1 > 30); /*@@@ need to use this? */
encoder->private_->use_wide_by_partition = (false); /*@@@ need to set this */
/*
* get the CPU info and set the function pointers
*/
FLAC__cpu_info(&encoder->private_->cpuinfo);
/* first default to the non-asm routines */
#ifndef FLAC__INTEGER_ONLY_LIBRARY
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
#endif
encoder->private_->local_precompute_partition_info_sums = precompute_partition_info_sums_;
encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor;
encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients;
#endif
/* now override with asm where appropriate */
#ifndef FLAC__INTEGER_ONLY_LIBRARY
# ifndef FLAC__NO_ASM
if(encoder->private_->cpuinfo.use_asm) {
# ifdef FLAC__CPU_IA32
FLAC__ASSERT(encoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
# ifdef FLAC__HAS_NASM
if(encoder->private_->cpuinfo.ia32.sse) {
if(encoder->protected_->max_lpc_order < 4)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4_old;
else if(encoder->protected_->max_lpc_order < 8)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8_old;
else if(encoder->protected_->max_lpc_order < 12)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12_old;
else if(encoder->protected_->max_lpc_order < 16)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_16_old;
else
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32;
}
else
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_asm_ia32;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32; /* OPT_IA32: was really necessary for GCC < 4.9 */
if(encoder->private_->cpuinfo.ia32.mmx) {
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx;
}
else {
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
}
if(encoder->private_->cpuinfo.ia32.mmx && encoder->private_->cpuinfo.ia32.cmov)
encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov;
# endif /* FLAC__HAS_NASM */
# ifdef FLAC__HAS_X86INTRIN
# if defined FLAC__SSE_SUPPORTED
if(encoder->private_->cpuinfo.ia32.sse) {
if(encoder->private_->cpuinfo.ia32.sse42 || !encoder->private_->cpuinfo.ia32.intel) { /* use new autocorrelation functions */
if(encoder->protected_->max_lpc_order < 4)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new;
else if(encoder->protected_->max_lpc_order < 8)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new;
else if(encoder->protected_->max_lpc_order < 12)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new;
else if(encoder->protected_->max_lpc_order < 16)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new;
else
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
}
else { /* use old autocorrelation functions */
if(encoder->protected_->max_lpc_order < 4)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old;
else if(encoder->protected_->max_lpc_order < 8)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old;
else if(encoder->protected_->max_lpc_order < 12)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old;
else if(encoder->protected_->max_lpc_order < 16)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old;
else
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
}
}
# endif
# ifdef FLAC__SSE2_SUPPORTED
if(encoder->private_->cpuinfo.ia32.sse2) {
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2;
}
# endif
# ifdef FLAC__SSE4_1_SUPPORTED
if(encoder->private_->cpuinfo.ia32.sse41) {
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41;
}
# endif
# ifdef FLAC__AVX2_SUPPORTED
if(encoder->private_->cpuinfo.ia32.avx2) {
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2;
}
# endif
# ifdef FLAC__SSE2_SUPPORTED
if (encoder->private_->cpuinfo.ia32.sse2) {
encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_sse2;
encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_sse2;
}
# endif
# ifdef FLAC__SSSE3_SUPPORTED
if (encoder->private_->cpuinfo.ia32.ssse3) {
encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_ssse3;
encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_ssse3;
}
# endif
# endif /* FLAC__HAS_X86INTRIN */
# elif defined FLAC__CPU_X86_64
FLAC__ASSERT(encoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_X86_64);
# ifdef FLAC__HAS_X86INTRIN
# ifdef FLAC__SSE_SUPPORTED
if(encoder->private_->cpuinfo.x86.sse42 || !encoder->private_->cpuinfo.x86.intel) { /* use new autocorrelation functions */
if(encoder->protected_->max_lpc_order < 4)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new;
else if(encoder->protected_->max_lpc_order < 8)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new;
else if(encoder->protected_->max_lpc_order < 12)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new;
else if(encoder->protected_->max_lpc_order < 16)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new;
}
else {
if(encoder->protected_->max_lpc_order < 4)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old;
else if(encoder->protected_->max_lpc_order < 8)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old;
else if(encoder->protected_->max_lpc_order < 12)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old;
else if(encoder->protected_->max_lpc_order < 16)
encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old;
}
# endif
# ifdef FLAC__SSE2_SUPPORTED
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2;
# endif
# ifdef FLAC__SSE4_1_SUPPORTED
if(encoder->private_->cpuinfo.x86.sse41) {
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41;
}
# endif
# ifdef FLAC__AVX2_SUPPORTED
if(encoder->private_->cpuinfo.x86.avx2) {
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2;
encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2;
}
# endif
# ifdef FLAC__SSE2_SUPPORTED
encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_sse2;
encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_sse2;
# endif
# ifdef FLAC__SSSE3_SUPPORTED
if (encoder->private_->cpuinfo.x86.ssse3) {
encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_intrin_ssse3;
encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_ssse3;
}
# endif
# endif /* FLAC__HAS_X86INTRIN */
# endif /* FLAC__CPU_... */
}
# endif /* !FLAC__NO_ASM */
#endif /* !FLAC__INTEGER_ONLY_LIBRARY */
#if !defined FLAC__NO_ASM && defined FLAC__HAS_X86INTRIN
if(encoder->private_->cpuinfo.use_asm) {
# if defined FLAC__CPU_IA32
# ifdef FLAC__SSE2_SUPPORTED
if(encoder->private_->cpuinfo.ia32.sse2)
encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_sse2;
# endif
# ifdef FLAC__SSSE3_SUPPORTED
if(encoder->private_->cpuinfo.ia32.ssse3)
encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_ssse3;
# endif
# ifdef FLAC__AVX2_SUPPORTED
if(encoder->private_->cpuinfo.ia32.avx2)
encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_avx2;
# endif
# elif defined FLAC__CPU_X86_64
# ifdef FLAC__SSE2_SUPPORTED
encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_sse2;
# endif
# ifdef FLAC__SSSE3_SUPPORTED
if(encoder->private_->cpuinfo.x86.ssse3)
encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_ssse3;
# endif
# ifdef FLAC__AVX2_SUPPORTED
if(encoder->private_->cpuinfo.x86.avx2)
encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_avx2;
# endif
# endif /* FLAC__CPU_... */
}
#endif /* !FLAC__NO_ASM && FLAC__HAS_X86INTRIN */
/* finally override based on wide-ness if necessary */
if(encoder->private_->use_wide_by_block) {
encoder->private_->local_fixed_compute_best_predictor = encoder->private_->local_fixed_compute_best_predictor_wide;
}
/* set state to OK; from here on, errors are fatal and we'll override the state then */
encoder->protected_->state = FLAC__STREAM_ENCODER_OK;
#if FLAC__HAS_OGG
encoder->private_->is_ogg = is_ogg;
if(is_ogg && !FLAC__ogg_encoder_aspect_init(&encoder->protected_->ogg_encoder_aspect)) {
encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
#endif
encoder->private_->read_callback = read_callback;
encoder->private_->write_callback = write_callback;
encoder->private_->seek_callback = seek_callback;
encoder->private_->tell_callback = tell_callback;
encoder->private_->metadata_callback = metadata_callback;
encoder->private_->client_data = client_data;
if(!resize_buffers_(encoder, encoder->protected_->blocksize)) {
/* the above function sets the state for us in case of an error */
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
if(!FLAC__bitwriter_init(encoder->private_->frame)) {
encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
/*
* Set up the verify stuff if necessary
*/
if(encoder->protected_->verify) {
/*
* First, set up the fifo which will hold the
* original signal to compare against
*/
encoder->private_->verify.input_fifo.size = encoder->protected_->blocksize+OVERREAD_;
for(i = 0; i < encoder->protected_->channels; i++) {
if(0 == (encoder->private_->verify.input_fifo.data[i] = safe_malloc_mul_2op_p(sizeof(FLAC__int32), /*times*/encoder->private_->verify.input_fifo.size))) {
encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
}
encoder->private_->verify.input_fifo.tail = 0;
/*
* Now set up a stream decoder for verification
*/
if(0 == encoder->private_->verify.decoder) {
encoder->private_->verify.decoder = FLAC__stream_decoder_new();
if(0 == encoder->private_->verify.decoder) {
encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
}
if(FLAC__stream_decoder_init_stream(encoder->private_->verify.decoder, verify_read_callback_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, verify_write_callback_, verify_metadata_callback_, verify_error_callback_, /*client_data=*/encoder) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
}
encoder->private_->verify.error_stats.absolute_sample = 0;
encoder->private_->verify.error_stats.frame_number = 0;
encoder->private_->verify.error_stats.channel = 0;
encoder->private_->verify.error_stats.sample = 0;
encoder->private_->verify.error_stats.expected = 0;
encoder->private_->verify.error_stats.got = 0;
/*
* These must be done before we write any metadata, 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;
/*
* write the stream header
*/
if(encoder->protected_->verify)
encoder->private_->verify.state_hint = ENCODER_IN_MAGIC;
if(!FLAC__bitwriter_write_raw_uint32(encoder->private_->frame, FLAC__STREAM_SYNC, FLAC__STREAM_SYNC_LEN)) {
encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
/* the above function sets the state for us in case of an error */
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
/*
* write the STREAMINFO metadata block
*/
if(encoder->protected_->verify)
encoder->private_->verify.state_hint = ENCODER_IN_METADATA;
encoder->private_->streaminfo.type = FLAC__METADATA_TYPE_STREAMINFO;
encoder->private_->streaminfo.is_last = false; /* we will have at a minimum a VORBIS_COMMENT afterwards */
encoder->private_->streaminfo.length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
encoder->private_->streaminfo.data.stream_info.min_blocksize = encoder->protected_->blocksize; /* this encoder uses the same blocksize for the whole stream */
encoder->private_->streaminfo.data.stream_info.max_blocksize = encoder->protected_->blocksize;
encoder->private_->streaminfo.data.stream_info.min_framesize = 0; /* we don't know this yet; have to fill it in later */
encoder->private_->streaminfo.data.stream_info.max_framesize = 0; /* we don't know this yet; have to fill it in later */
encoder->private_->streaminfo.data.stream_info.sample_rate = encoder->protected_->sample_rate;
encoder->private_->streaminfo.data.stream_info.channels = encoder->protected_->channels;
encoder->private_->streaminfo.data.stream_info.bits_per_sample = encoder->protected_->bits_per_sample;
encoder->private_->streaminfo.data.stream_info.total_samples = encoder->protected_->total_samples_estimate; /* we will replace this later with the real total */
memset(encoder->private_->streaminfo.data.stream_info.md5sum, 0, 16); /* we don't know this yet; have to fill it in later */
if(encoder->protected_->do_md5)
FLAC__MD5Init(&encoder->private_->md5context);
if(!FLAC__add_metadata_block(&encoder->private_->streaminfo, encoder->private_->frame)) {
encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
/* the above function sets the state for us in case of an error */
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
/*
* Now that the STREAMINFO block is written, we can init this to an
* absurdly-high value...
*/
encoder->private_->streaminfo.data.stream_info.min_framesize = (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN) - 1;
/* ... and clear this to 0 */
encoder->private_->streaminfo.data.stream_info.total_samples = 0;
/*
* Check to see if the supplied metadata contains a VORBIS_COMMENT;
* if not, we will write an empty one (FLAC__add_metadata_block()
* automatically supplies the vendor string).
*
* WATCHOUT: the Ogg FLAC mapping requires us to write this block after
* the STREAMINFO. (In the case that metadata_has_vorbis_comment is
* true it will have already insured that the metadata list is properly
* ordered.)
*/
if(!metadata_has_vorbis_comment) {
FLAC__StreamMetadata vorbis_comment;
vorbis_comment.type = FLAC__METADATA_TYPE_VORBIS_COMMENT;
vorbis_comment.is_last = (encoder->protected_->num_metadata_blocks == 0);
vorbis_comment.length = 4 + 4; /* MAGIC NUMBER */
vorbis_comment.data.vorbis_comment.vendor_string.length = 0;
vorbis_comment.data.vorbis_comment.vendor_string.entry = 0;
vorbis_comment.data.vorbis_comment.num_comments = 0;
vorbis_comment.data.vorbis_comment.comments = 0;
if(!FLAC__add_metadata_block(&vorbis_comment, encoder->private_->frame)) {
encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
/* the above function sets the state for us in case of an error */
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
}
/*
* write the user's metadata blocks
*/
for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
encoder->protected_->metadata[i]->is_last = (i == encoder->protected_->num_metadata_blocks - 1);
if(!FLAC__add_metadata_block(encoder->protected_->metadata[i], encoder->private_->frame)) {
encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
/* the above function sets the state for us in case of an error */
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
}
/* now that all the metadata is written, we save the stream offset */
if(encoder->private_->tell_callback && encoder->private_->tell_callback(encoder, &encoder->protected_->audio_offset, encoder->private_->client_data) == FLAC__STREAM_ENCODER_TELL_STATUS_ERROR) { /* FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED just means we didn't get the offset; no error */
encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
if(encoder->protected_->verify)
encoder->private_->verify.state_hint = ENCODER_IN_AUDIO;
return FLAC__STREAM_ENCODER_INIT_STATUS_OK;
}
FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_stream(
FLAC__StreamEncoder *encoder,
FLAC__StreamEncoderWriteCallback write_callback,
FLAC__StreamEncoderSeekCallback seek_callback,
FLAC__StreamEncoderTellCallback tell_callback,
FLAC__StreamEncoderMetadataCallback metadata_callback,
void *client_data
)
{
return init_stream_internal_(
encoder,
/*read_callback=*/0,
write_callback,
seek_callback,
tell_callback,
metadata_callback,
client_data,
/*is_ogg=*/false
);
}
FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_stream(
FLAC__StreamEncoder *encoder,
FLAC__StreamEncoderReadCallback read_callback,
FLAC__StreamEncoderWriteCallback write_callback,
FLAC__StreamEncoderSeekCallback seek_callback,
FLAC__StreamEncoderTellCallback tell_callback,
FLAC__StreamEncoderMetadataCallback metadata_callback,
void *client_data
)
{
return init_stream_internal_(
encoder,
read_callback,
write_callback,
seek_callback,
tell_callback,
metadata_callback,
client_data,
/*is_ogg=*/true
);
}
static FLAC__StreamEncoderInitStatus init_FILE_internal_(
FLAC__StreamEncoder *encoder,
FILE *file,
FLAC__StreamEncoderProgressCallback progress_callback,
void *client_data,
FLAC__bool is_ogg
)
{
FLAC__StreamEncoderInitStatus init_status;
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != file);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
/* double protection */
if(file == 0) {
encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
/*
* To make sure that our file does not go unclosed after an error, we
* must assign the FILE pointer before any further error can occur in
* this routine.
*/
if(file == stdout)
file = get_binary_stdout_(); /* just to be safe */
#ifdef _WIN32
/*
* Windows can suffer quite badly from disk fragmentation. This can be
* reduced significantly by setting the output buffer size to be 10MB.
*/
setvbuf(file, NULL, _IOFBF, 10*1024*1024);
#endif
encoder->private_->file = file;
encoder->private_->progress_callback = progress_callback;
encoder->private_->bytes_written = 0;
encoder->private_->samples_written = 0;
encoder->private_->frames_written = 0;
init_status = init_stream_internal_(
encoder,
encoder->private_->file == stdout? 0 : is_ogg? file_read_callback_ : 0,
file_write_callback_,
encoder->private_->file == stdout? 0 : file_seek_callback_,
encoder->private_->file == stdout? 0 : file_tell_callback_,
/*metadata_callback=*/0,
client_data,
is_ogg
);
if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
/* the above function sets the state for us in case of an error */
return init_status;
}
{
unsigned blocksize = FLAC__stream_encoder_get_blocksize(encoder);
FLAC__ASSERT(blocksize != 0);
encoder->private_->total_frames_estimate = (unsigned)((FLAC__stream_encoder_get_total_samples_estimate(encoder) + blocksize - 1) / blocksize);
}
return init_status;
}
FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_FILE(
FLAC__StreamEncoder *encoder,
FILE *file,
FLAC__StreamEncoderProgressCallback progress_callback,
void *client_data
)
{
return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/false);
}
FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_FILE(
FLAC__StreamEncoder *encoder,
FILE *file,
FLAC__StreamEncoderProgressCallback progress_callback,
void *client_data
)
{
return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/true);
}
static FLAC__StreamEncoderInitStatus init_file_internal_(
FLAC__StreamEncoder *encoder,
const char *filename,
FLAC__StreamEncoderProgressCallback progress_callback,
void *client_data,
FLAC__bool is_ogg
)
{
FILE *file;
FLAC__ASSERT(0 != encoder);
/*
* To make sure that our file does not go unclosed after an error, we
* have to do the same entrance checks here that are later performed
* in FLAC__stream_encoder_init_FILE() before the FILE* is assigned.
*/
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
file = filename? flac_fopen(filename, "w+b") : stdout;
if(file == 0) {
encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
}
return init_FILE_internal_(encoder, file, progress_callback, client_data, is_ogg);
}
FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_file(
FLAC__StreamEncoder *encoder,
const char *filename,
FLAC__StreamEncoderProgressCallback progress_callback,
void *client_data
)
{
return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/false);
}
FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_file(
FLAC__StreamEncoder *encoder,
const char *filename,
FLAC__StreamEncoderProgressCallback progress_callback,
void *client_data
)
{
return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/true);
}
FLAC_API FLAC__bool FLAC__stream_encoder_finish(FLAC__StreamEncoder *encoder)
{
FLAC__bool error = false;
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state == FLAC__STREAM_ENCODER_UNINITIALIZED)
return true;
if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK && !encoder->private_->is_being_deleted) {
if(encoder->private_->current_sample_number != 0) {
const FLAC__bool is_fractional_block = encoder->protected_->blocksize != encoder->private_->current_sample_number;
encoder->protected_->blocksize = encoder->private_->current_sample_number;
if(!process_frame_(encoder, is_fractional_block, /*is_last_block=*/true))
error = true;
}
}
if(encoder->protected_->do_md5)
FLAC__MD5Final(encoder->private_->streaminfo.data.stream_info.md5sum, &encoder->private_->md5context);
if(!encoder->private_->is_being_deleted) {
if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK) {
if(encoder->private_->seek_callback) {
#if FLAC__HAS_OGG
if(encoder->private_->is_ogg)
update_ogg_metadata_(encoder);
else
#endif
update_metadata_(encoder);
/* check if an error occurred while updating metadata */
if(encoder->protected_->state != FLAC__STREAM_ENCODER_OK)
error = true;
}
if(encoder->private_->metadata_callback)
encoder->private_->metadata_callback(encoder, &encoder->private_->streaminfo, encoder->private_->client_data);
}
if(encoder->protected_->verify && 0 != encoder->private_->verify.decoder && !FLAC__stream_decoder_finish(encoder->private_->verify.decoder)) {
if(!error)
encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA;
error = true;
}
}
if(0 != encoder->private_->file) {
if(encoder->private_->file != stdout)
fclose(encoder->private_->file);
encoder->private_->file = 0;
}
#if FLAC__HAS_OGG
if(encoder->private_->is_ogg)
FLAC__ogg_encoder_aspect_finish(&encoder->protected_->ogg_encoder_aspect);
#endif
free_(encoder);
set_defaults_(encoder);
if(!error)
encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
return !error;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_ogg_serial_number(FLAC__StreamEncoder *encoder, long value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
#if FLAC__HAS_OGG
/* can't check encoder->private_->is_ogg since that's not set until init time */
FLAC__ogg_encoder_aspect_set_serial_number(&encoder->protected_->ogg_encoder_aspect, value);
return true;
#else
(void)value;
return false;
#endif
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
#ifndef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
encoder->protected_->verify = value;
#endif
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->streamable_subset = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_do_md5(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->do_md5 = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->channels = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_bits_per_sample(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->bits_per_sample = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->sample_rate = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_compression_level(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__bool ok = true;
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
if(value >= sizeof(compression_levels_)/sizeof(compression_levels_[0]))
value = sizeof(compression_levels_)/sizeof(compression_levels_[0]) - 1;
ok &= FLAC__stream_encoder_set_do_mid_side_stereo (encoder, compression_levels_[value].do_mid_side_stereo);
ok &= FLAC__stream_encoder_set_loose_mid_side_stereo (encoder, compression_levels_[value].loose_mid_side_stereo);
#ifndef FLAC__INTEGER_ONLY_LIBRARY
#if 1
ok &= FLAC__stream_encoder_set_apodization (encoder, compression_levels_[value].apodization);
#else
/* equivalent to -A tukey(0.5) */
encoder->protected_->num_apodizations = 1;
encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
#endif
#endif
ok &= FLAC__stream_encoder_set_max_lpc_order (encoder, compression_levels_[value].max_lpc_order);
ok &= FLAC__stream_encoder_set_qlp_coeff_precision (encoder, compression_levels_[value].qlp_coeff_precision);
ok &= FLAC__stream_encoder_set_do_qlp_coeff_prec_search (encoder, compression_levels_[value].do_qlp_coeff_prec_search);
ok &= FLAC__stream_encoder_set_do_escape_coding (encoder, compression_levels_[value].do_escape_coding);
ok &= FLAC__stream_encoder_set_do_exhaustive_model_search (encoder, compression_levels_[value].do_exhaustive_model_search);
ok &= FLAC__stream_encoder_set_min_residual_partition_order(encoder, compression_levels_[value].min_residual_partition_order);
ok &= FLAC__stream_encoder_set_max_residual_partition_order(encoder, compression_levels_[value].max_residual_partition_order);
ok &= FLAC__stream_encoder_set_rice_parameter_search_dist (encoder, compression_levels_[value].rice_parameter_search_dist);
return ok;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->blocksize = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_do_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->do_mid_side_stereo = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_loose_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->loose_mid_side_stereo = value;
return true;
}
/*@@@@add to tests*/
FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != specification);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
#ifdef FLAC__INTEGER_ONLY_LIBRARY
(void)specification; /* silently ignore since we haven't integerized; will always use a rectangular window */
#else
encoder->protected_->num_apodizations = 0;
while(1) {
const char *s = strchr(specification, ';');
const size_t n = s? (size_t)(s - specification) : strlen(specification);
if (n==8 && 0 == strncmp("bartlett" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT;
else if(n==13 && 0 == strncmp("bartlett_hann", specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT_HANN;
else if(n==8 && 0 == strncmp("blackman" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN;
else if(n==26 && 0 == strncmp("blackman_harris_4term_92db", specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE;
else if(n==6 && 0 == strncmp("connes" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_CONNES;
else if(n==7 && 0 == strncmp("flattop" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_FLATTOP;
else if(n>7 && 0 == strncmp("gauss(" , specification, 6)) {
FLAC__real stddev = (FLAC__real)strtod(specification+6, 0);
if (stddev > 0.0 && stddev <= 0.5) {
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.gauss.stddev = stddev;
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_GAUSS;
}
}
else if(n==7 && 0 == strncmp("hamming" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HAMMING;
else if(n==4 && 0 == strncmp("hann" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HANN;
else if(n==13 && 0 == strncmp("kaiser_bessel", specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_KAISER_BESSEL;
else if(n==7 && 0 == strncmp("nuttall" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_NUTTALL;
else if(n==9 && 0 == strncmp("rectangle" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_RECTANGLE;
else if(n==8 && 0 == strncmp("triangle" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TRIANGLE;
else if(n>7 && 0 == strncmp("tukey(" , specification, 6)) {
FLAC__real p = (FLAC__real)strtod(specification+6, 0);
if (p >= 0.0 && p <= 1.0) {
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = p;
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
}
}
else if(n>15 && 0 == strncmp("partial_tukey(" , specification, 14)) {
FLAC__int32 tukey_parts = (FLAC__int32)strtod(specification+14, 0);
const char *si_1 = strchr(specification, '/');
FLAC__real overlap = si_1?flac_min((FLAC__real)strtod(si_1+1, 0),0.99f):0.1f;
FLAC__real overlap_units = 1.0f/(1.0f - overlap) - 1.0f;
const char *si_2 = strchr((si_1?(si_1+1):specification), '/');
FLAC__real tukey_p = si_2?(FLAC__real)strtod(si_2+1, 0):0.2f;
if (tukey_parts <= 1) {
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = tukey_p;
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
}else if (encoder->protected_->num_apodizations + tukey_parts < 32){
FLAC__int32 m;
for(m = 0; m < tukey_parts; m++){
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.p = tukey_p;
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.start = m/(tukey_parts+overlap_units);
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.end = (m+1+overlap_units)/(tukey_parts+overlap_units);
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_PARTIAL_TUKEY;
}
}
}
else if(n>16 && 0 == strncmp("punchout_tukey(" , specification, 15)) {
FLAC__int32 tukey_parts = (FLAC__int32)strtod(specification+15, 0);
const char *si_1 = strchr(specification, '/');
FLAC__real overlap = si_1?flac_min((FLAC__real)strtod(si_1+1, 0),0.99f):0.2f;
FLAC__real overlap_units = 1.0f/(1.0f - overlap) - 1.0f;
const char *si_2 = strchr((si_1?(si_1+1):specification), '/');
FLAC__real tukey_p = si_2?(FLAC__real)strtod(si_2+1, 0):0.2f;
if (tukey_parts <= 1) {
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = tukey_p;
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
}else if (encoder->protected_->num_apodizations + tukey_parts < 32){
FLAC__int32 m;
for(m = 0; m < tukey_parts; m++){
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.p = tukey_p;
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.start = m/(tukey_parts+overlap_units);
encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.end = (m+1+overlap_units)/(tukey_parts+overlap_units);
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_PUNCHOUT_TUKEY;
}
}
}
else if(n==5 && 0 == strncmp("welch" , specification, n))
encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_WELCH;
if (encoder->protected_->num_apodizations == 32)
break;
if (s)
specification = s+1;
else
break;
}
if(encoder->protected_->num_apodizations == 0) {
encoder->protected_->num_apodizations = 1;
encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
}
#endif
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_max_lpc_order(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->max_lpc_order = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_qlp_coeff_precision(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->qlp_coeff_precision = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_do_qlp_coeff_prec_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->do_qlp_coeff_prec_search = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_do_escape_coding(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
#if 0
/*@@@ deprecated: */
encoder->protected_->do_escape_coding = value;
#else
(void)value;
#endif
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_do_exhaustive_model_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->do_exhaustive_model_search = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_min_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->min_residual_partition_order = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_max_residual_partition_order(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->max_residual_partition_order = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_rice_parameter_search_dist(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
#if 0
/*@@@ deprecated: */
encoder->protected_->rice_parameter_search_dist = value;
#else
(void)value;
#endif
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *encoder, FLAC__uint64 value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->protected_->total_samples_estimate = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
if(0 == metadata)
num_blocks = 0;
if(0 == num_blocks)
metadata = 0;
/* realloc() does not do exactly what we want so... */
if(encoder->protected_->metadata) {
free(encoder->protected_->metadata);
encoder->protected_->metadata = 0;
encoder->protected_->num_metadata_blocks = 0;
}
if(num_blocks) {
FLAC__StreamMetadata **m;
if(0 == (m = safe_malloc_mul_2op_p(sizeof(m[0]), /*times*/num_blocks)))
return false;
memcpy(m, metadata, sizeof(m[0]) * num_blocks);
encoder->protected_->metadata = m;
encoder->protected_->num_metadata_blocks = num_blocks;
}
#if FLAC__HAS_OGG
if(!FLAC__ogg_encoder_aspect_set_num_metadata(&encoder->protected_->ogg_encoder_aspect, num_blocks))
return false;
#endif
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__stream_encoder_disable_constant_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->disable_constant_subframes = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_disable_fixed_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->disable_fixed_subframes = value;
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_disable_verbatim_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->disable_verbatim_subframes = value;
return true;
}
FLAC_API FLAC__StreamEncoderState FLAC__stream_encoder_get_state(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->state;
}
FLAC_API FLAC__StreamDecoderState FLAC__stream_encoder_get_verify_decoder_state(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->verify)
return FLAC__stream_decoder_get_state(encoder->private_->verify.decoder);
else
return FLAC__STREAM_DECODER_UNINITIALIZED;
}
FLAC_API const char *FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR)
return FLAC__StreamEncoderStateString[encoder->protected_->state];
else
return FLAC__stream_decoder_get_resolved_state_string(encoder->private_->verify.decoder);
}
FLAC_API void FLAC__stream_encoder_get_verify_decoder_error_stats(const FLAC__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__ASSERT(0 != encoder->protected_);
if(0 != absolute_sample)
*absolute_sample = encoder->private_->verify.error_stats.absolute_sample;
if(0 != frame_number)
*frame_number = encoder->private_->verify.error_stats.frame_number;
if(0 != channel)
*channel = encoder->private_->verify.error_stats.channel;
if(0 != sample)
*sample = encoder->private_->verify.error_stats.sample;
if(0 != expected)
*expected = encoder->private_->verify.error_stats.expected;
if(0 != got)
*got = encoder->private_->verify.error_stats.got;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_verify(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->verify;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->streamable_subset;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_do_md5(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->do_md5;
}
FLAC_API unsigned FLAC__stream_encoder_get_channels(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->channels;
}
FLAC_API unsigned FLAC__stream_encoder_get_bits_per_sample(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->bits_per_sample;
}
FLAC_API unsigned FLAC__stream_encoder_get_sample_rate(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->sample_rate;
}
FLAC_API unsigned FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->blocksize;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_do_mid_side_stereo(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->do_mid_side_stereo;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_loose_mid_side_stereo(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->loose_mid_side_stereo;
}
FLAC_API unsigned FLAC__stream_encoder_get_max_lpc_order(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->max_lpc_order;
}
FLAC_API unsigned FLAC__stream_encoder_get_qlp_coeff_precision(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->qlp_coeff_precision;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->do_qlp_coeff_prec_search;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_do_escape_coding(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->do_escape_coding;
}
FLAC_API FLAC__bool FLAC__stream_encoder_get_do_exhaustive_model_search(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->do_exhaustive_model_search;
}
FLAC_API unsigned FLAC__stream_encoder_get_min_residual_partition_order(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->min_residual_partition_order;
}
FLAC_API unsigned FLAC__stream_encoder_get_max_residual_partition_order(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->max_residual_partition_order;
}
FLAC_API unsigned FLAC__stream_encoder_get_rice_parameter_search_dist(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->rice_parameter_search_dist;
}
FLAC_API FLAC__uint64 FLAC__stream_encoder_get_total_samples_estimate(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->total_samples_estimate;
}
FLAC_API FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
{
unsigned i, j = 0, channel;
const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
// FLAC__ASSERT(samples <= blocksize);
do {
const unsigned n = flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j);
if(encoder->protected_->verify)
append_to_verify_fifo_(&encoder->private_->verify.input_fifo, buffer, j, channels, n);
for(channel = 0; channel < channels; channel++) {
if (buffer[channel] == NULL) {
return false;
}
memcpy(&encoder->private_->integer_signal[channel][encoder->private_->current_sample_number], &buffer[channel][j], sizeof(buffer[channel][0]) * n);
}
if(encoder->protected_->do_mid_side_stereo) {
FLAC__ASSERT(channels == 2);
/* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
encoder->private_->integer_signal_mid_side[1][i] = buffer[0][j] - buffer[1][j];
encoder->private_->integer_signal_mid_side[0][i] = (buffer[0][j] + buffer[1][j]) >> 1; /* NOTE: not the same as 'mid = (buffer[0][j] + buffer[1][j]) / 2' ! */
}
}
else
j += n;
encoder->private_->current_sample_number += n;
/* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
if(encoder->private_->current_sample_number > blocksize) {
FLAC__ASSERT(encoder->private_->current_sample_number == blocksize+OVERREAD_);
FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
return false;
/* move unprocessed overread samples to beginnings of arrays */
for(channel = 0; channel < channels; channel++)
encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
if(encoder->protected_->do_mid_side_stereo) {
encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
}
encoder->private_->current_sample_number = 1;
}
} while(j < samples);
return true;
}
FLAC_API FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
{
unsigned i, j, k, channel;
FLAC__int32 x, mid, side;
const unsigned channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize;
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
j = k = 0;
/*
* we have several flavors of the same basic loop, optimized for
* different conditions:
*/
if(encoder->protected_->do_mid_side_stereo && channels == 2) {
/*
* stereo coding: unroll channel loop
*/
do {
if(encoder->protected_->verify)
append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
/* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
encoder->private_->integer_signal[0][i] = mid = side = buffer[k++];
x = buffer[k++];
encoder->private_->integer_signal[1][i] = x;
mid += x;
side -= x;
mid >>= 1; /* NOTE: not the same as 'mid = (left + right) / 2' ! */
encoder->private_->integer_signal_mid_side[1][i] = side;
encoder->private_->integer_signal_mid_side[0][i] = mid;
}
encoder->private_->current_sample_number = i;
/* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
if(i > blocksize) {
if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
return false;
/* move unprocessed overread samples to beginnings of arrays */
FLAC__ASSERT(i == blocksize+OVERREAD_);
FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
encoder->private_->integer_signal[0][0] = encoder->private_->integer_signal[0][blocksize];
encoder->private_->integer_signal[1][0] = encoder->private_->integer_signal[1][blocksize];
encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
encoder->private_->current_sample_number = 1;
}
} while(j < samples);
}
else {
/*
* independent channel coding: buffer each channel in inner loop
*/
do {
if(encoder->protected_->verify)
append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
/* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
for(channel = 0; channel < channels; channel++)
encoder->private_->integer_signal[channel][i] = buffer[k++];
}
encoder->private_->current_sample_number = i;
/* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
if(i > blocksize) {
if(!process_frame_(encoder, /*is_fractional_block=*/false, /*is_last_block=*/false))
return false;
/* move unprocessed overread samples to beginnings of arrays */
FLAC__ASSERT(i == blocksize+OVERREAD_);
FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
for(channel = 0; channel < channels; channel++)
encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
encoder->private_->current_sample_number = 1;
}
} while(j < samples);
}
return true;
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
#ifdef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
encoder->protected_->verify = true;
#else
encoder->protected_->verify = false;
#endif
encoder->protected_->streamable_subset = true;
encoder->protected_->do_md5 = true;
encoder->protected_->do_mid_side_stereo = false;
encoder->protected_->loose_mid_side_stereo = false;
encoder->protected_->channels = 2;
encoder->protected_->bits_per_sample = 16;
encoder->protected_->sample_rate = 44100;
encoder->protected_->blocksize = 0;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
encoder->protected_->num_apodizations = 1;
encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
#endif
encoder->protected_->max_lpc_order = 0;
encoder->protected_->qlp_coeff_precision = 0;
encoder->protected_->do_qlp_coeff_prec_search = false;
encoder->protected_->do_exhaustive_model_search = false;
encoder->protected_->do_escape_coding = false;
encoder->protected_->min_residual_partition_order = 0;
encoder->protected_->max_residual_partition_order = 0;
encoder->protected_->rice_parameter_search_dist = 0;
encoder->protected_->total_samples_estimate = 0;
encoder->protected_->metadata = 0;
encoder->protected_->num_metadata_blocks = 0;
encoder->private_->seek_table = 0;
encoder->private_->disable_constant_subframes = false;
encoder->private_->disable_fixed_subframes = false;
encoder->private_->disable_verbatim_subframes = false;
#if FLAC__HAS_OGG
encoder->private_->is_ogg = false;
#endif
encoder->private_->read_callback = 0;
encoder->private_->write_callback = 0;
encoder->private_->seek_callback = 0;
encoder->private_->tell_callback = 0;
encoder->private_->metadata_callback = 0;
encoder->private_->progress_callback = 0;
encoder->private_->client_data = 0;
#if FLAC__HAS_OGG
FLAC__ogg_encoder_aspect_set_defaults(&encoder->protected_->ogg_encoder_aspect);
#endif
FLAC__stream_encoder_set_compression_level(encoder, 5);
}
void free_(FLAC__StreamEncoder *encoder)
{
unsigned i, channel;
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->metadata) {
free(encoder->protected_->metadata);
encoder->protected_->metadata = 0;
encoder->protected_->num_metadata_blocks = 0;
}
for(i = 0; i < encoder->protected_->channels; i++) {
if(0 != encoder->private_->integer_signal_unaligned[i]) {
free(encoder->private_->integer_signal_unaligned[i]);
encoder->private_->integer_signal_unaligned[i] = 0;
}
#ifndef FLAC__INTEGER_ONLY_LIBRARY
if(0 != encoder->private_->real_signal_unaligned[i]) {
free(encoder->private_->real_signal_unaligned[i]);
encoder->private_->real_signal_unaligned[i] = 0;
}
#endif
}
for(i = 0; i < 2; i++) {
if(0 != encoder->private_->integer_signal_mid_side_unaligned[i]) {
free(encoder->private_->integer_signal_mid_side_unaligned[i]);
encoder->private_->integer_signal_mid_side_unaligned[i] = 0;
}
#ifndef FLAC__INTEGER_ONLY_LIBRARY
if(0 != encoder->private_->real_signal_mid_side_unaligned[i]) {
free(encoder->private_->real_signal_mid_side_unaligned[i]);
encoder->private_->real_signal_mid_side_unaligned[i] = 0;
}
#endif
}
#ifndef FLAC__INTEGER_ONLY_LIBRARY
for(i = 0; i < encoder->protected_->num_apodizations; i++) {
if(0 != encoder->private_->window_unaligned[i]) {
free(encoder->private_->window_unaligned[i]);
encoder->private_->window_unaligned[i] = 0;
}
}
if(0 != encoder->private_->windowed_signal_unaligned) {
free(encoder->private_->windowed_signal_unaligned);
encoder->private_->windowed_signal_unaligned = 0;
}
#endif
for(channel = 0; channel < encoder->protected_->channels; channel++) {
for(i = 0; i < 2; i++) {
if(0 != encoder->private_->residual_workspace_unaligned[channel][i]) {
free(encoder->private_->residual_workspace_unaligned[channel][i]);
encoder->private_->residual_workspace_unaligned[channel][i] = 0;
}
}
}