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add FLAC__stream_encoder_set_compression_level()

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This commit is contained in:
Josh Coalson
2006-11-03 16:08:52 +00:00
parent 7464fec9fe
commit 425609cb0c
6 changed files with 289 additions and 143 deletions
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147
src/libFLAC/stream_encoder.c
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@@ -98,6 +98,31 @@ typedef enum {
ENCODER_IN_AUDIO = 2
} EncoderStateHint;
static struct CompressionLevels {
FLAC__bool do_mid_side_stereo;
FLAC__bool loose_mid_side_stereo;
const char *apodization;
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;
} compression_levels_[] = {
{ false, false, "tukey(0.5)", 0, 0, false, false, false, 2, 2, 0 },
{ true , true , "tukey(0.5)", 0, 0, false, false, false, 2, 2, 0 },
{ true , false, "tukey(0.5)", 0, 0, false, false, false, 0, 3, 0 },
{ false, false, "tukey(0.5)", 6, 0, false, false, false, 3, 3, 0 },
{ true , true , "tukey(0.5)", 8, 0, false, false, false, 3, 3, 0 },
{ true , false, "tukey(0.5)", 8, 0, false, false, false, 3, 3, 0 },
{ true , false, "tukey(0.5)", 8, 0, false, false, false, 0, 4, 0 },
{ true , false, "tukey(0.5)", 8, 0, false, false, true , 0, 6, 0 },
{ true , false, "tukey(0.5)", 12, 0, false, false, true , 0, 6, 0 }
};
/***********************************************************************
*
* Private class method prototypes
@@ -469,8 +494,6 @@ FLAC_API const char * const FLAC__StreamEncoderInitStatusString[] = {
"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_MID_SIDE_CHANNELS_MISMATCH",
"FLAC__STREAM_ENCODER_INIT_STATUS_ILLEGAL_MID_SIDE_FORCE",
"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",
@@ -647,11 +670,12 @@ static FLAC__StreamEncoderInitStatus init_stream_internal_(
if(encoder->protected_->channels == 0 || encoder->protected_->channels > FLAC__MAX_CHANNELS)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS;
if(encoder->protected_->do_mid_side_stereo && encoder->protected_->channels != 2)
return FLAC__STREAM_ENCODER_INIT_STATUS_MID_SIDE_CHANNELS_MISMATCH;
if(encoder->protected_->loose_mid_side_stereo && !encoder->protected_->do_mid_side_stereo)
return FLAC__STREAM_ENCODER_INIT_STATUS_ILLEGAL_MID_SIDE_FORCE;
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 */
@@ -662,6 +686,13 @@ static FLAC__StreamEncoderInitStatus init_stream_internal_(
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 = 4608;
}
if(encoder->protected_->blocksize < FLAC__MIN_BLOCK_SIZE || encoder->protected_->blocksize > FLAC__MAX_BLOCK_SIZE)
return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE;
@@ -1411,28 +1442,6 @@ FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncod
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;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
@@ -1466,6 +1475,30 @@ FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *en
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);
ok &= FLAC__stream_encoder_set_apodization (encoder, compression_levels_[value].apodization);
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);
@@ -1477,6 +1510,28 @@ FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *enco
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;
}
FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification)
{
FLAC__ASSERT(0 != encoder);
@@ -1775,22 +1830,6 @@ FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__Strea
return encoder->protected_->streamable_subset;
}
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_channels(const FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
@@ -1823,6 +1862,22 @@ FLAC_API unsigned FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *
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);
@@ -2180,7 +2235,7 @@ void set_defaults_(FLAC__StreamEncoder *encoder)
encoder->protected_->channels = 2;
encoder->protected_->bits_per_sample = 16;
encoder->protected_->sample_rate = 44100;
encoder->protected_->blocksize = 1152;
encoder->protected_->blocksize = 0;
#ifndef FLAC__INTEGER_ONLY_LIBRARY
encoder->protected_->num_apodizations = 1;
encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;