/**
\fn initialize
*/
uint8_t AUDMEncoder_Aften::initialize(void)
{
int ret=0;
#if defined(USE_AFTEN_05) || defined(USE_AFTEN_06)
int mask;
#else
unsigned int mask;
#endif
_wavheader->byterate=(aftenParam.bitrate*1000)/8;
_HANDLE->sample_format=A52_SAMPLE_FMT_FLT;
_HANDLE->channels=_wavheader->channels;
_HANDLE->samplerate=_wavheader->frequency;
_HANDLE->params.bitrate=aftenParam.bitrate;
switch(_wavheader->channels)
{
case 1: mask = 0x04; break;
case 2: mask = 0x03; break;
case 3: mask = 0x07; break;
case 4: mask = 0x107; break;
case 5: mask = 0x37; break;
case 6: mask = 0x3F; break;
}
#if defined(USE_AFTEN_05) || defined(USE_AFTEN_06)
aften_wav_chmask_to_acmod(_wavheader->channels, mask, &(_HANDLE->acmod), &(_HANDLE->lfe));
#else
aften_wav_channels_to_acmod(_wavheader->channels, mask, &(_HANDLE->acmod), &(_HANDLE->lfe));
#endif
// _HANDLE->params.verbose=2;
int er= aften_encode_init(_HANDLE);
if(er<0)
{
printf("[Aften] init error %d\n",er);
return 0;
}
_chunk=256*6*_wavheader->channels;
printf("[Aften] Initialized with fd %u Channels %u bitrate %u\n",_HANDLE->samplerate,
_HANDLE->channels,_HANDLE->params.bitrate);
return 1;
}
int
main(int argc, char **argv)
{
void (*aften_remap)(void *samples, int n, int ch,
A52SampleFormat fmt, int acmod) = NULL;
uint8_t *frame = NULL;
FLOAT *fwav = NULL;
int nr, fs, err;
FILE *ifp[A52_NUM_SPEAKERS];
FILE *ofp = NULL;
PcmContext pf;
CommandOptions opts;
AftenContext s;
uint32_t samplecount, bytecount, t0, t1, percent;
FLOAT kbps, qual, bw;
int frame_cnt;
int input_file_format;
enum PcmSampleFormat read_format;
/* update output every 200ms */
clock_t update_clock_span = (clock_t)(0.2f * CLOCKS_PER_SEC);
clock_t current_clock;
clock_t last_update_clock = clock() - update_clock_span;
int ret_val = 0;
int i;
opts.s = &s;
aften_set_defaults(&s);
err = parse_commandline(argc, argv, &opts);
if (err) {
if (err == 1) {
print_intro(stderr);
print_usage(stderr);
return 1;
} else {
print_intro(stdout);
if (err == 2) {
print_help(stdout);
} else if (err == 3) {
print_long_help(stdout);
}
return 0;
}
}
if (s.verbose > 0) {
print_intro(stderr);
}
memset(ifp, 0, A52_NUM_SPEAKERS * sizeof(FILE *));
for (i = 0; i < opts.num_input_files; i++) {
if (!strncmp(opts.infile[i], "-", 2)) {
#ifdef _WIN32
_setmode(_fileno(stdin), _O_BINARY);
#endif
ifp[i] = stdin;
} else {
ifp[i] = fopen(opts.infile[i], "rb");
if (!ifp[i]) {
fprintf(stderr, "error opening input file: %s\n", opts.infile[i]);
goto error_end;
}
}
}
#ifdef CONFIG_DOUBLE
read_format = PCM_SAMPLE_FMT_DBL;
#else
read_format = PCM_SAMPLE_FMT_FLT;
#endif
// initialize pcmfile using input
input_file_format = PCM_FORMAT_UNKNOWN;
if (opts.raw_input)
input_file_format = PCM_FORMAT_RAW;
if (pcm_init(&pf, opts.num_input_files, ifp, read_format, input_file_format)) {
fprintf(stderr, "invalid input file(s)\n");
goto error_end;
}
if (opts.read_to_eof)
pcm_set_read_to_eof(&pf, 1);
if (opts.raw_input) {
pcm_set_source_params(&pf, opts.raw_ch, opts.raw_fmt,
opts.raw_order, opts.raw_sr);
}
// print wav info to console
if (s.verbose > 0) {
fprintf(stderr, "input format: ");
if (opts.num_input_files > 1)
fprintf(stderr, "\n");
pcm_print(&pf, stderr);
}
// if acmod is given on commandline, determine lfe from number of channels
if (s.acmod >= 0) {
int ch = acmod_to_ch[s.acmod];
if (ch == pf.channels) {
if (s.lfe < 0) {
s.lfe = 0;
} else {
if (s.lfe != 0) {
fprintf(stderr, "acmod and lfe do not match number of channels\n");
goto error_end;
}
}
} else if (ch == (pf.channels - 1)) {
if (s.lfe < 0) {
s.lfe = 1;
} else {
if (s.lfe != 1) {
fprintf(stderr, "acmod and lfe do not match number of channels\n");
goto error_end;
}
}
} else {
fprintf(stderr, "acmod does not match number of channels\n");
goto error_end;
}
} else {
// if acmod is not given on commandline, determine from WAVE file
int ch = pf.channels;
if (s.lfe >= 0) {
if (s.lfe == 0 && ch == 6) {
fprintf(stderr, "cannot encode 6 channels w/o LFE\n");
goto error_end;
} else if (s.lfe == 1 && ch == 1) {
fprintf(stderr, "cannot encode LFE channel only\n");
goto error_end;
}
if (s.lfe) {
pf.ch_mask |= 0x08;
}
}
if (aften_wav_channels_to_acmod(ch, pf.ch_mask, &s.acmod, &s.lfe)) {
fprintf(stderr, "mismatch in channels, acmod, and lfe params\n");
goto error_end;
}
}
// set some encoding parameters using wav info
s.channels = pf.channels;
s.samplerate = pf.sample_rate;
#ifdef CONFIG_DOUBLE
s.sample_format = A52_SAMPLE_FMT_DBL;
#else
s.sample_format = A52_SAMPLE_FMT_FLT;
#endif
// open output file
if (!strncmp(opts.outfile, "-", 2)) {
#ifdef _WIN32
_setmode(_fileno(stdout), _O_BINARY);
#endif
ofp = stdout;
} else {
ofp = fopen(opts.outfile, "wb");
if (!ofp) {
fprintf(stderr, "error opening output file: %s\n", opts.outfile);
goto error_end;
}
}
// print ac3 info to console
if (s.verbose > 0) {
fprintf(stderr, "output format: %d Hz %s", s.samplerate,
acmod_str[s.acmod]);
if (s.lfe) {
fprintf(stderr, " + LFE");
}
fprintf(stderr, "\n\n");
}
// allocate memory for coded frame and sample buffer
frame = calloc(A52_MAX_CODED_FRAME_SIZE, 1);
fwav = calloc(A52_SAMPLES_PER_FRAME * s.channels, sizeof(FLOAT));
if (frame == NULL || fwav == NULL)
goto error_end;
samplecount = bytecount = t0 = t1 = percent = 0;
qual = bw = 0.0;
frame_cnt = 0;
fs = 0;
nr = 0;
if (opts.chmap == 0)
aften_remap = aften_remap_wav_to_a52;
else if (opts.chmap == 2)
aften_remap = aften_remap_mpeg_to_a52;
// Don't pad start with zero samples, use input audio instead.
if (!opts.pad_start) {
int diff;
nr = pcm_read_samples(&pf, fwav, 256);
diff = 256 - nr;
if (diff > 0) {
memmove(fwav + diff * s.channels, fwav, nr);
memset(fwav, 0, diff * s.channels * sizeof(FLOAT));
}
if (aften_remap)
aften_remap(fwav + diff, nr, s.channels, s.sample_format, s.acmod);
s.initial_samples = fwav;
}
// initialize encoder
if (aften_encode_init(&s)) {
fprintf(stderr, "error initializing encoder\n");
goto error_end;
}
// print SIMD instructions used
print_simd_in_use(stderr, &s.system.wanted_simd_instructions);
// print number of threads used
fprintf(stderr, "Threads: %i\n\n", s.system.n_threads);
do {
nr = pcm_read_samples(&pf, fwav, A52_SAMPLES_PER_FRAME);
if (aften_remap)
aften_remap(fwav, nr, s.channels, s.sample_format, s.acmod);
fs = aften_encode_frame(&s, frame, fwav, nr);
if (fs < 0) {
fprintf(stderr, "Error encoding frame %d\n", frame_cnt);
break;
} else if (fs > 0) {
if (s.verbose > 0) {
samplecount += A52_SAMPLES_PER_FRAME;
bytecount += fs;
qual += s.status.quality;
bw += s.status.bwcode;
if (s.verbose == 1) {
current_clock = clock();
if (current_clock - last_update_clock >= update_clock_span) {
t1 = samplecount / pf.sample_rate;
if (frame_cnt > 0 && (t1 > t0 || samplecount >= pf.samples)) {
kbps = (bytecount * FCONST(8.0) * pf.sample_rate) /
(FCONST(1000.0) * samplecount);
percent = 0;
if (pf.samples > 0) {
percent = (uint32_t)((samplecount * FCONST(100.0)) /
pf.samples);
percent = CLIP(percent, 0, 100);
}
fprintf(stderr, "\rprogress: %3u%% | q: %4.1f | "
"bw: %2.1f | bitrate: %4.1f kbps ",
percent, (qual / (frame_cnt+1)),
(bw / (frame_cnt+1)), kbps);
}
t0 = t1;
last_update_clock = current_clock;
}
} else if (s.verbose == 2) {
fprintf(stderr, "frame: %7d | q: %4d | bw: %2d | bitrate: %3d kbps\n",
frame_cnt, s.status.quality, s.status.bwcode,
s.status.bit_rate);
}
}
fwrite(frame, 1, fs, ofp);
frame_cnt++;
}
} while (nr > 0 || fs > 0 || !frame_cnt);
if (s.verbose >= 1) {
if (samplecount > 0) {
kbps = (bytecount * FCONST(8.0) * pf.sample_rate) / (FCONST(1000.0) * samplecount);
} else {
kbps = 0;
}
frame_cnt = MAX(frame_cnt, 1);
if (s.verbose == 1) {
fprintf(stderr, "\rprogress: 100%% | q: %4.1f | bw: %2.1f | bitrate: %4.1f kbps\n\n",
(qual / frame_cnt), (bw / frame_cnt), kbps);
} else if (s.verbose == 2) {
fprintf(stderr, "\n");
fprintf(stderr, "average quality: %4.1f\n", (qual / frame_cnt));
fprintf(stderr, "average bandwidth: %2.1f\n", (bw / frame_cnt));
fprintf(stderr, "average bitrate: %4.1f kbps\n\n", kbps);
}
}
goto end;
error_end:
ret_val = 1;
end:
if (fwav)
free(fwav);
if (frame)
free(frame);
pcm_close(&pf);
for (i = 0; i < opts.num_input_files; i++) {
if (ifp[i])
fclose(ifp[i]);
}
if (ofp)
fclose(ofp);
if (aften_encode_close(&s))
return 1;
return ret_val;
}