uintptr_t fa_aacenc_init(int sample_rate, int bit_rate, int chn_num,
int mpeg_version, int aac_objtype, int lfe_enable,
int band_width,
int speed_level)
{
int ms_enable;
int tns_enable;
int block_switch_enable;
int blockswitch_method;
int quantize_method;
int psy_enable;
uintptr_t handle;
int bit_rate_max, bit_rate_min;
int bit_rate_chn;
int speed_index;
if (speed_level > SPEED_LEVEL_MAX || speed_level < 1)
return 0;
speed_index = speed_level - 1;
ms_enable = speed_level_tab[speed_index][0];
tns_enable = speed_level_tab[speed_index][1];
block_switch_enable = speed_level_tab[speed_index][2];
psy_enable = speed_level_tab[speed_index][3];
blockswitch_method = speed_level_tab[speed_index][4];
quantize_method = speed_level_tab[speed_index][5];
bit_rate_min = 16;
bit_rate_max = 160;
bit_rate_chn = bit_rate/chn_num;
if ((bit_rate_chn > bit_rate_max) || (bit_rate_chn < bit_rate_min)) {
printf("total bitrate=%d, per chn = %d\n", bit_rate, bit_rate_chn);
printf("bitrate not support, only suporrt [16~160]kbps per chn\n");
exit(0);
}
handle = aacenc_init(sample_rate, bit_rate*1000, chn_num,
mpeg_version, aac_objtype, band_width*1000, speed_level,
ms_enable, lfe_enable, tns_enable, block_switch_enable, psy_enable,
blockswitch_method, quantize_method);
return handle;
}
int main(int argc, char **argv)
{
static m4af_io_callbacks_t m4af_io = {
read_callback, write_callback, seek_callback, tell_callback
};
aacenc_param_ex_t params = { 0 };
int result = 2;
char *output_filename = 0;
pcm_reader_t *reader = 0;
HANDLE_AACENCODER encoder = 0;
AACENC_InfoStruct aacinfo = { 0 };
m4af_ctx_t *m4af = 0;
const pcm_sample_description_t *sample_format;
int frame_count = 0;
int sbr_mode = 0;
unsigned scale_shift = 0;
setlocale(LC_CTYPE, "");
setbuf(stderr, 0);
if (parse_options(argc, argv, ¶ms) < 0)
return 1;
if ((reader = open_input(¶ms)) == 0)
goto END;
sample_format = pcm_get_format(reader);
sbr_mode = aacenc_is_sbr_active((aacenc_param_t*)¶ms);
if (sbr_mode && !aacenc_is_sbr_ratio_available()) {
fprintf(stderr, "WARNING: Only dual-rate SBR is available "
"for this version\n");
params.sbr_ratio = 2;
}
scale_shift = aacenc_is_dual_rate_sbr((aacenc_param_t*)¶ms);
params.sbr_signaling =
(params.transport_format == TT_MP4_LOAS) ? 2 :
(params.transport_format == TT_MP4_RAW) ? 1 : 0;
if (sbr_mode && !scale_shift)
params.sbr_signaling = 2;
if (aacenc_init(&encoder, (aacenc_param_t*)¶ms, sample_format,
&aacinfo) < 0)
goto END;
if (!params.output_filename) {
const char *ext = params.transport_format ? ".aac" : ".m4a";
output_filename = generate_output_filename(params.input_filename, ext);
params.output_filename = output_filename;
}
if ((params.output_fp = aacenc_fopen(params.output_filename, "wb+")) == 0) {
aacenc_fprintf(stderr, "ERROR: %s: %s\n", params.output_filename,
strerror(errno));
goto END;
}
handle_signals();
if (!params.transport_format) {
uint32_t scale;
unsigned framelen = aacinfo.frameLength;
scale = sample_format->sample_rate >> scale_shift;
if ((m4af = m4af_create(M4AF_CODEC_MP4A, scale, &m4af_io,
params.output_fp)) < 0)
goto END;
m4af_set_decoder_specific_info(m4af, 0,
aacinfo.confBuf, aacinfo.confSize);
m4af_set_fixed_frame_duration(m4af, 0,
framelen >> scale_shift);
m4af_set_vbr_mode(m4af, 0, params.bitrate_mode);
m4af_set_priming_mode(m4af, params.gapless_mode + 1);
m4af_begin_write(m4af);
}
uintptr_t fa_aacenc_init(int sample_rate, int bit_rate, int chn_num, float quality, int vbr_flag,
int mpeg_version, int aac_objtype, int lfe_enable,
float band_width,
int speed_level,
int time_resolution_first)
{
int ms_enable;
int tns_enable;
int block_switch_enable;
int blockswitch_method;
int quantize_method;
int psy_enable;
int psy_model;
uintptr_t handle;
int bit_rate_max, bit_rate_min;
int bit_rate_chn;
int speed_index;
float qcof;
if (speed_level > SPEED_LEVEL_MAX || speed_level < 1)
return 0;
speed_index = speed_level - 1;
ms_enable = speed_level_tab[speed_index][0];
tns_enable = speed_level_tab[speed_index][1];
block_switch_enable = speed_level_tab[speed_index][2];
psy_enable = speed_level_tab[speed_index][3];
/*psy_model = PSYCH1;*/
psy_model = PSYCH2;
blockswitch_method = speed_level_tab[speed_index][4];
quantize_method = speed_level_tab[speed_index][5];
bit_rate_min = 16;
bit_rate_max = 160;
bit_rate_chn = bit_rate/chn_num;
qcof = QCOF_MAX - quality;
if (qcof < QCOF_MIN)
qcof = QCOF_MIN;
if (qcof > QCOF_MAX)
qcof = QCOF_MAX;
if ((bit_rate_chn > bit_rate_max) || (bit_rate_chn < bit_rate_min)) {
printf("total bitrate=%d, per chn = %d\n", bit_rate, bit_rate_chn);
printf("bitrate not support, only suporrt [16~160]kbps per chn\n");
exit(0);
}
//2012-12-02
fa_logtab_init();
handle = aacenc_init(sample_rate, bit_rate*1000, chn_num, qcof, vbr_flag,
mpeg_version, aac_objtype, band_width*1000, speed_level,
ms_enable, lfe_enable, tns_enable, block_switch_enable, psy_enable, psy_model,
blockswitch_method, quantize_method, time_resolution_first);
return handle;
}
int main(int argc, char **argv)
{
wav_io_context_t wav_io = { read_callback, seek_callback, tell_callback };
m4af_io_callbacks_t
m4af_io = { read_callback, write_callback, seek_callback, tell_callback };
aacenc_param_ex_t params = { 0 };
int result = 2;
FILE *ifp = 0;
FILE *ofp = 0;
char *output_filename = 0;
#ifdef USE_LIBSNDFILE
SNDFILE* snd = NULL;
SF_INFO snd_info;
pcm_sample_description_t snd_desc = { 0 };
#else
wav_reader_t *wavf = 0;
#endif
HANDLE_AACENCODER encoder = 0;
AACENC_InfoStruct aacinfo = { 0 };
m4af_ctx_t *m4af = 0;
const pcm_sample_description_t *sample_format;
int downsampled_timescale = 0;
int frame_count = 0;
struct stat stb = { 0 };
setlocale(LC_CTYPE, "");
setbuf(stderr, 0);
if (parse_options(argc, argv, ¶ms) < 0)
return 1;
#ifdef USE_LIBSNDFILE
if ((snd = sf_open (params.input_filename, SFM_READ, &snd_info)) == NULL) {
fprintf(stderr, "ERROR: broken / unsupported input file\n");
goto END;
}
#ifdef USE_LIBSAMPLERATE
if(params.resample) {
snd_desc.sample_rate = params.resample;
printf("resampling to %dhz\n", snd_desc.sample_rate);
} else {
snd_desc.sample_rate = snd_info.samplerate;
}
snd_desc.sample_type = PCM_TYPE_FLOAT; // always -- libsndfile does the conversion for us
snd_desc.bits_per_channel = sizeof(float)*8;
#else
snd_desc.sample_rate = snd_info.samplerate;
snd_desc.sample_type = PCM_TYPE_SINT; // always -- libsndfile does the conversion for us
snd_desc.bits_per_channel = sizeof(short)*8;
#endif
snd_desc.channels_per_frame = snd_info.channels;
snd_desc.bytes_per_frame = snd_info.channels * (snd_desc.bits_per_channel / 8);
snd_desc.channel_mask = 0;
sample_format = &snd_desc;
#else
if ((ifp = aacenc_fopen(params.input_filename, "rb")) == 0) {
aacenc_fprintf(stderr, "ERROR: %s: %s\n", params.input_filename,
strerror(errno));
goto END;
}
if (fstat(fileno(ifp), &stb) == 0 && (stb.st_mode & S_IFMT) != S_IFREG) {
wav_io.seek = 0;
wav_io.tell = 0;
}
if (!params.is_raw) {
if ((wavf = wav_open(&wav_io, ifp, params.ignore_length)) == 0) {
fprintf(stderr, "ERROR: broken / unsupported input file\n");
goto END;
}
} else {
int bytes_per_channel;
pcm_sample_description_t desc = { 0 };
if (parse_raw_spec(params.raw_format, &desc) < 0) {
fprintf(stderr, "ERROR: invalid raw-format spec\n");
goto END;
}
desc.sample_rate = params.raw_rate;
desc.channels_per_frame = params.raw_channels;
bytes_per_channel = (desc.bits_per_channel + 7) / 8;
desc.bytes_per_frame = params.raw_channels * bytes_per_channel;
if ((wavf = raw_open(&wav_io, ifp, &desc)) == 0) {
fprintf(stderr, "ERROR: failed to open raw input\n");
goto END;
}
}
sample_format = wav_get_format(wavf);
#endif
if (aacenc_init(&encoder, (aacenc_param_t*)¶ms, sample_format,
&aacinfo) < 0)
goto END;
if (!params.output_filename) {
const char *ext = params.transport_format ? ".aac" : ".m4a";
output_filename = generate_output_filename(params.input_filename, ext);
params.output_filename = output_filename;
}
if ((ofp = aacenc_fopen(params.output_filename, "wb+")) == 0) {
aacenc_fprintf(stderr, "ERROR: %s: %s\n", params.output_filename,
strerror(errno));
goto END;
}
handle_signals();
if (!params.transport_format) {
uint32_t scale;
unsigned framelen = aacinfo.frameLength;
int sbr_mode = aacenc_is_sbr_active((aacenc_param_t*)¶ms);
int sig_mode = aacEncoder_GetParam(encoder, AACENC_SIGNALING_MODE);
if (sbr_mode && !sig_mode)
downsampled_timescale = 1;
scale = sample_format->sample_rate >> downsampled_timescale;
if ((m4af = m4af_create(M4AF_CODEC_MP4A, scale, &m4af_io, ofp)) < 0)
goto END;
m4af_set_decoder_specific_info(m4af, 0, aacinfo.confBuf,
aacinfo.confSize);
m4af_set_fixed_frame_duration(m4af, 0,
framelen >> downsampled_timescale);
m4af_set_priming_mode(m4af, params.gapless_mode + 1);
m4af_begin_write(m4af);
}
