int FAACEncoder::Init(int nSampleRate, int nChannels)
{
if (IsWorking())
{
return 0;
}
m_nSampleRate = nSampleRate;
m_nChannels = nChannels;
m_hfaac = faacEncOpen(m_nSampleRate, m_nChannels, &m_nInputSamples, &m_nMaxOutputBytes);
if (m_hfaac!=NULL)
{
m_pfaacconf = faacEncGetCurrentConfiguration(m_hfaac);
m_pfaacconf->inputFormat = FAAC_INPUT_16BIT;
m_pfaacconf->outputFormat=1;//0raw 1adst
m_pfaacconf->useTns=true;
m_pfaacconf->useLfe=false;
m_pfaacconf->aacObjectType=LOW;
m_pfaacconf->shortctl=SHORTCTL_NORMAL;
m_pfaacconf->quantqual=100;
m_pfaacconf->bandWidth=0;
m_pfaacconf->bitRate=0;
faacEncSetConfiguration(m_hfaac,m_pfaacconf);
faacEncGetDecoderSpecificInfo(m_hfaac,&m_pfaacinfobuffer,&m_nfaacinfosize);
}
return 0;
}
int aacEncoder::init()
{
hEncoder = faacEncOpen(nSampleRate, nChannels, &nInputSamples, &nMaxOutputBytes);
assert(hEncoder != NULL);
pConfiguration = faacEncGetCurrentConfiguration(hEncoder);
pConfiguration->allowMidside = 1;
pConfiguration->inputFormat = FAAC_INPUT_16BIT;
pConfiguration->aacObjectType = LOW;
pConfiguration->mpegVersion = MPEG4;
pConfiguration->useTns = true;
pConfiguration->useLfe = true;
pConfiguration->outputFormat = 0;
pConfiguration->quantqual = 100;
pConfiguration->bandWidth = 80*200;
pConfiguration->shortctl = SHORTCTL_NORMAL;
faacEncSetConfiguration(hEncoder, pConfiguration);
LOGI("nSampleRate = %ld, nChannels = %u, nInputSamples = %ld, nMaxOutputBytes = %ld", nSampleRate, nChannels, nInputSamples, nMaxOutputBytes);
faacEncGetDecoderSpecificInfo(hEncoder, &audioInfo, &audioInfoLen);
interrupt = 0;
return nInputSamples;
}
int main(int argc, char *argv[])
{
int frames, currentFrame;
faacEncHandle hEncoder;
pcmfile_t *infile = NULL;
unsigned long samplesInput, maxBytesOutput, totalBytesWritten=0;
faacEncConfigurationPtr myFormat;
unsigned int mpegVersion = MPEG2;
unsigned int objectType = LOW;
unsigned int useMidSide = 1;
static unsigned int useTns = DEFAULT_TNS;
enum container_format container = NO_CONTAINER;
int optimizeFlag = 0;
enum stream_format stream = ADTS_STREAM;
int cutOff = -1;
int bitRate = 0;
unsigned long quantqual = 0;
int chanC = 3;
int chanLF = 4;
char *audioFileName = NULL;
char *aacFileName = NULL;
char *aacFileExt = NULL;
int aacFileNameGiven = 0;
float *pcmbuf;
int *chanmap = NULL;
unsigned char *bitbuf;
int samplesRead = 0;
const char *dieMessage = NULL;
int rawChans = 0; // disabled by default
int rawBits = 16;
int rawRate = 44100;
int rawEndian = 1;
int shortctl = SHORTCTL_NORMAL;
FILE *outfile = NULL;
#ifdef HAVE_LIBMP4V2
MP4FileHandle MP4hFile = MP4_INVALID_FILE_HANDLE;
MP4TrackId MP4track = 0;
unsigned int ntracks = 0, trackno = 0;
unsigned int ndiscs = 0, discno = 0;
u_int8_t compilation = 0;
const char *artist = NULL, *title = NULL, *album = NULL, *year = NULL,
*genre = NULL, *comment = NULL, *writer = NULL;
u_int8_t *art = NULL;
u_int64_t artSize = 0;
u_int64_t total_samples = 0;
u_int64_t encoded_samples = 0;
unsigned int delay_samples;
unsigned int frameSize;
#endif
char *faac_id_string;
char *faac_copyright_string;
#ifndef _WIN32
// install signal handler
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
#endif
// get faac version
if (faacEncGetVersion(&faac_id_string, &faac_copyright_string) == FAAC_CFG_VERSION)
{
fprintf(stderr, "Freeware Advanced Audio Coder\nFAAC %s\n\n", faac_id_string);
}
else
{
fprintf(stderr, __FILE__ "(%d): wrong libfaac version\n", __LINE__);
return 1;
}
/* begin process command line */
progName = argv[0];
while (1) {
static struct option long_options[] = {
{ "help", 0, 0, 'h'},
{ "long-help", 0, 0, 'H'},
{ "raw", 0, 0, 'r'},
{ "no-midside", 0, 0, NO_MIDSIDE_FLAG},
{ "cutoff", 1, 0, 'c'},
{ "quality", 1, 0, 'q'},
{ "pcmraw", 0, 0, 'P'},
{ "pcmsamplerate", 1, 0, 'R'},
{ "pcmsamplebits", 1, 0, 'B'},
{ "pcmchannels", 1, 0, 'C'},
{ "shortctl", 1, 0, SHORTCTL_FLAG},
{ "tns", 0, 0, TNS_FLAG},
{ "no-tns", 0, 0, NO_TNS_FLAG},
{ "mpeg-version", 1, 0, MPEGVERS_FLAG},
{ "obj-type", 1, 0, OBJTYPE_FLAG},
{ "license", 0, 0, 'L'},
#ifdef HAVE_LIBMP4V2
{ "createmp4", 0, 0, 'w'},
{ "optimize", 0, 0, 's'},
{ "artist", 1, 0, ARTIST_FLAG},
{ "title", 1, 0, TITLE_FLAG},
{ "album", 1, 0, ALBUM_FLAG},
{ "track", 1, 0, TRACK_FLAG},
{ "disc", 1, 0, DISC_FLAG},
{ "genre", 1, 0, GENRE_FLAG},
{ "year", 1, 0, YEAR_FLAG},
{ "cover-art", 1, 0, COVER_ART_FLAG},
{ "comment", 1, 0, COMMENT_FLAG},
{ "writer", 1, 0, WRITER_FLAG},
{ "compilation", 0, 0, COMPILATION_FLAG},
#endif
{ "pcmswapbytes", 0, 0, 'X'},
{ 0, 0, 0, 0}
};
int c = -1;
int option_index = 0;
c = getopt_long(argc, argv, "Hhb:m:o:rnc:q:PR:B:C:I:X"
#ifdef HAVE_LIBMP4V2
"ws"
#endif
,long_options, &option_index);
if (c == -1)
break;
if (!c)
{
dieMessage = usage;
break;
}
switch (c) {
case 'o':
{
int l = strlen(optarg);
aacFileName = malloc(l+1);
memcpy(aacFileName, optarg, l);
aacFileName[l] = '\0';
aacFileNameGiven = 1;
}
break;
case 'r': {
stream = RAW_STREAM;
break;
}
case NO_MIDSIDE_FLAG: {
useMidSide = 0;
break;
}
case 'c': {
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0) {
cutOff = i;
}
break;
}
case 'b': {
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
bitRate = 1000 * i;
}
break;
}
case 'q':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
if (i > 0 && i < 1000)
quantqual = i;
}
break;
}
case 'I':
sscanf(optarg, "%d,%d", &chanC, &chanLF);
break;
case 'P':
rawChans = 2; // enable raw input
break;
case 'R':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
rawRate = i;
rawChans = (rawChans > 0) ? rawChans : 2;
}
break;
}
case 'B':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
{
if (i > 32)
i = 32;
if (i < 8)
i = 8;
rawBits = i;
rawChans = (rawChans > 0) ? rawChans : 2;
}
break;
}
case 'C':
{
unsigned int i;
if (sscanf(optarg, "%u", &i) > 0)
rawChans = i;
break;
}
#ifdef HAVE_LIBMP4V2
case 'w':
container = MP4_CONTAINER;
break;
case 's':
optimizeFlag = 1;
break;
case ARTIST_FLAG:
artist = optarg;
break;
case WRITER_FLAG:
writer = optarg;
break;
case TITLE_FLAG:
title = optarg;
break;
case ALBUM_FLAG:
album = optarg;
break;
case TRACK_FLAG:
sscanf(optarg, "%d/%d", &trackno, &ntracks);
break;
case DISC_FLAG:
sscanf(optarg, "%d/%d", &discno, &ndiscs);
break;
case COMPILATION_FLAG:
compilation = 0x1;
break;
case GENRE_FLAG:
genre = optarg;
break;
case YEAR_FLAG:
year = optarg;
break;
case COMMENT_FLAG:
comment = optarg;
break;
case COVER_ART_FLAG: {
FILE *artFile = fopen(optarg, "rb");
if(artFile) {
u_int64_t r;
fseek(artFile, 0, SEEK_END);
artSize = ftell(artFile);
art = malloc(artSize);
fseek(artFile, 0, SEEK_SET);
clearerr(artFile);
r = fread(art, artSize, 1, artFile);
if (r != 1) {
dieMessage = "Error reading cover art file!\n";
free(art);
art = NULL;
} else if (artSize < 12 || !check_image_header(art)) {
/* the above expression checks the image signature */
dieMessage = "Unsupported cover image file format!\n";
free(art);
art = NULL;
}
fclose(artFile);
} else {
dieMessage = "Error opening cover art file!\n";
}
break;
}
#endif
case SHORTCTL_FLAG:
shortctl = atoi(optarg);
break;
case TNS_FLAG:
useTns = 1;
break;
case NO_TNS_FLAG:
useTns = 0;
break;
case MPEGVERS_FLAG:
mpegVersion = atoi(optarg);
switch(mpegVersion)
{
case 2:
mpegVersion = MPEG2;
break;
case 4:
mpegVersion = MPEG4;
break;
default:
dieMessage = "Unrecognised MPEG version!\n";
}
break;
#if 0
case OBJTYPE_FLAG:
if (!strcasecmp(optarg, "LC"))
objectType = LOW;
else if (!strcasecmp(optarg, "Main"))
objectType = MAIN;
else if (!strcasecmp(optarg, "LTP")) {
mpegVersion = MPEG4;
objectType = LTP;
} else
dieMessage = "Unrecognised object type!\n";
break;
#endif
case 'L':
fprintf(stderr, faac_copyright_string);
dieMessage = license;
break;
case 'X':
rawEndian = 0;
break;
case 'H':
dieMessage = long_help;
break;
case 'h':
dieMessage = short_help;
break;
case '?':
default:
dieMessage = usage;
break;
}
}
/* check that we have at least one non-option arguments */
if (!dieMessage && (argc - optind) > 1 && aacFileNameGiven)
dieMessage = "Cannot encode several input files to one output file.\n";
if (argc - optind < 1 || dieMessage)
{
fprintf(stderr, dieMessage ? dieMessage : usage,
progName, progName, progName, progName);
return 1;
}
while (argc - optind > 0) {
/* get the input file name */
audioFileName = argv[optind++];
/* generate the output file name, if necessary */
if (!aacFileNameGiven) {
char *t = strrchr(audioFileName, '.');
int l = t ? strlen(audioFileName) - strlen(t) : strlen(audioFileName);
#ifdef HAVE_LIBMP4V2
aacFileExt = container == MP4_CONTAINER ? ".m4a" : ".aac";
#else
aacFileExt = ".aac";
#endif
aacFileName = malloc(l+1+4);
memcpy(aacFileName, audioFileName, l);
memcpy(aacFileName + l, aacFileExt, 4);
aacFileName[l+4] = '\0';
} else {
aacFileExt = strrchr(aacFileName, '.');
if (aacFileExt && (!strcmp(".m4a", aacFileExt) || !strcmp(".m4b", aacFileExt) || !strcmp(".mp4", aacFileExt)))
#ifndef HAVE_LIBMP4V2
fprintf(stderr, "WARNING: MP4 support unavailable!\n");
#else
container = MP4_CONTAINER;
#endif
}
/* open the audio input file */
if (rawChans > 0) // use raw input
{
infile = wav_open_read(audioFileName, 1);
if (infile)
{
infile->bigendian = rawEndian;
infile->channels = rawChans;
infile->samplebytes = rawBits / 8;
infile->samplerate = rawRate;
infile->samples /= (infile->channels * infile->samplebytes);
}
}
else // header input
infile = wav_open_read(audioFileName, 0);
if (infile == NULL)
{
fprintf(stderr, "Couldn't open input file %s\n", audioFileName);
return 1;
}
/* open the encoder library */
hEncoder = faacEncOpen(infile->samplerate, infile->channels,
&samplesInput, &maxBytesOutput);
#ifdef HAVE_LIBMP4V2
if (container != MP4_CONTAINER && (ntracks || trackno || artist ||
title || album || year || art ||
genre || comment || discno || ndiscs ||
writer || compilation))
{
fprintf(stderr, "Metadata requires MP4 output!\n");
return 1;
}
if (container == MP4_CONTAINER)
{
mpegVersion = MPEG4;
stream = RAW_STREAM;
}
frameSize = samplesInput/infile->channels;
delay_samples = frameSize; // encoder delay 1024 samples
#endif
pcmbuf = (float *)malloc(samplesInput*sizeof(float));
bitbuf = (unsigned char*)malloc(maxBytesOutput*sizeof(unsigned char));
chanmap = mkChanMap(infile->channels, chanC, chanLF);
if (chanmap)
{
fprintf(stderr, "Remapping input channels: Center=%d, LFE=%d\n",
chanC, chanLF);
}
if (cutOff <= 0)
{
if (cutOff < 0) // default
cutOff = 0;
else // disabled
cutOff = infile->samplerate / 2;
}
if (cutOff > (infile->samplerate / 2))
cutOff = infile->samplerate / 2;
/* put the options in the configuration struct */
myFormat = faacEncGetCurrentConfiguration(hEncoder);
myFormat->aacObjectType = objectType;
myFormat->mpegVersion = mpegVersion;
myFormat->useTns = useTns;
switch (shortctl)
{
case SHORTCTL_NOSHORT:
fprintf(stderr, "disabling short blocks\n");
myFormat->shortctl = shortctl;
break;
case SHORTCTL_NOLONG:
fprintf(stderr, "disabling long blocks\n");
myFormat->shortctl = shortctl;
break;
}
if (infile->channels >= 6)
myFormat->useLfe = 1;
myFormat->allowMidside = useMidSide;
if (bitRate)
myFormat->bitRate = bitRate / infile->channels;
myFormat->bandWidth = cutOff;
if (quantqual > 0)
myFormat->quantqual = quantqual;
myFormat->outputFormat = stream;
myFormat->inputFormat = FAAC_INPUT_FLOAT;
if (!faacEncSetConfiguration(hEncoder, myFormat)) {
fprintf(stderr, "Unsupported output format!\n");
#ifdef HAVE_LIBMP4V2
if (container == MP4_CONTAINER) MP4Close(MP4hFile);
#endif
return 1;
}
#ifdef HAVE_LIBMP4V2
/* initialize MP4 creation */
if (container == MP4_CONTAINER) {
unsigned char *ASC = 0;
unsigned long ASCLength = 0;
char *version_string;
#ifdef MP4_CREATE_EXTENSIBLE_FORMAT
/* hack to compile against libmp4v2 >= 1.0RC3
* why is there no version identifier in mp4.h? */
MP4hFile = MP4Create(aacFileName, MP4_DETAILS_ERROR, 0);
#else
MP4hFile = MP4Create(aacFileName, MP4_DETAILS_ERROR, 0, 0);
#endif
if (!MP4_IS_VALID_FILE_HANDLE(MP4hFile)) {
fprintf(stderr, "Couldn't create output file %s\n", aacFileName);
return 1;
}
MP4SetTimeScale(MP4hFile, 90000);
MP4track = MP4AddAudioTrack(MP4hFile, infile->samplerate, MP4_INVALID_DURATION, MP4_MPEG4_AUDIO_TYPE);
MP4SetAudioProfileLevel(MP4hFile, 0x0F);
faacEncGetDecoderSpecificInfo(hEncoder, &ASC, &ASCLength);
MP4SetTrackESConfiguration(MP4hFile, MP4track, ASC, ASCLength);
free(ASC);
/* set metadata */
version_string = malloc(strlen(faac_id_string) + 6);
strcpy(version_string, "FAAC ");
strcpy(version_string + 5, faac_id_string);
MP4SetMetadataTool(MP4hFile, version_string);
free(version_string);
if (artist) MP4SetMetadataArtist(MP4hFile, artist);
if (writer) MP4SetMetadataWriter(MP4hFile, writer);
if (title) MP4SetMetadataName(MP4hFile, title);
if (album) MP4SetMetadataAlbum(MP4hFile, album);
if (trackno > 0) MP4SetMetadataTrack(MP4hFile, trackno, ntracks);
if (discno > 0) MP4SetMetadataDisk(MP4hFile, discno, ndiscs);
if (compilation) MP4SetMetadataCompilation(MP4hFile, compilation);
if (year) MP4SetMetadataYear(MP4hFile, year);
if (genre) MP4SetMetadataGenre(MP4hFile, genre);
if (comment) MP4SetMetadataComment(MP4hFile, comment);
if (artSize) {
MP4SetMetadataCoverArt(MP4hFile, art, artSize);
free(art);
}
}
else
{
#endif
/* open the aac output file */
if (!strcmp(aacFileName, "-"))
{
outfile = stdout;
}
else
{
outfile = fopen(aacFileName, "wb");
}
if (!outfile)
{
fprintf(stderr, "Couldn't create output file %s\n", aacFileName);
return 1;
}
#ifdef HAVE_LIBMP4V2
}
#endif
cutOff = myFormat->bandWidth;
quantqual = myFormat->quantqual;
bitRate = myFormat->bitRate;
if (bitRate)
fprintf(stderr, "Average bitrate: %d kbps\n",
(bitRate + 500)/1000*infile->channels);
fprintf(stderr, "Quantization quality: %ld\n", quantqual);
fprintf(stderr, "Bandwidth: %d Hz\n", cutOff);
fprintf(stderr, "Object type: ");
switch(objectType)
{
case LOW:
fprintf(stderr, "Low Complexity");
break;
case MAIN:
fprintf(stderr, "Main");
break;
case LTP:
fprintf(stderr, "LTP");
break;
}
fprintf(stderr, "(MPEG-%d)", (mpegVersion == MPEG4) ? 4 : 2);
if (myFormat->useTns)
fprintf(stderr, " + TNS");
if (myFormat->allowMidside)
fprintf(stderr, " + M/S");
fprintf(stderr, "\n");
fprintf(stderr, "Container format: ");
switch(container)
{
case NO_CONTAINER:
switch(stream)
{
case RAW_STREAM:
fprintf(stderr, "Headerless AAC (RAW)\n");
break;
case ADTS_STREAM:
fprintf(stderr, "Transport Stream (ADTS)\n");
break;
}
break;
#ifdef HAVE_LIBMP4V2
case MP4_CONTAINER:
fprintf(stderr, "MPEG-4 File Format (MP4)\n");
break;
#endif
}
if (outfile
#ifdef HAVE_LIBMP4V2
|| MP4hFile != MP4_INVALID_FILE_HANDLE
#endif
)
{
int showcnt = 0;
#ifdef _WIN32
long begin = GetTickCount();
#endif
if (infile->samples)
frames = ((infile->samples + 1023) / 1024) + 1;
else
frames = 0;
currentFrame = 0;
fprintf(stderr, "Encoding %s to %s\n", audioFileName, aacFileName);
if (frames != 0)
fprintf(stderr, " frame | bitrate | elapsed/estim | "
"play/CPU | ETA\n");
else
fprintf(stderr, " frame | elapsed | play/CPU\n");
/* encoding loop */
#ifdef _WIN32
for (;;)
#else
while (running)
#endif
{
int bytesWritten;
samplesRead = wav_read_float32(infile, pcmbuf, samplesInput, chanmap);
#ifdef HAVE_LIBMP4V2
total_samples += samplesRead / infile->channels;
#endif
/* call the actual encoding routine */
bytesWritten = faacEncEncode(hEncoder,
(int32_t *)pcmbuf,
samplesRead,
bitbuf,
maxBytesOutput);
if (bytesWritten)
{
currentFrame++;
showcnt--;
totalBytesWritten += bytesWritten;
}
if ((showcnt <= 0) || !bytesWritten)
{
double timeused;
#ifdef __unix__
struct rusage usage;
#endif
#ifdef _WIN32
char percent[MAX_PATH + 20];
timeused = (GetTickCount() - begin) * 1e-3;
#else
#ifdef __unix__
if (getrusage(RUSAGE_SELF, &usage) == 0) {
timeused = (double)usage.ru_utime.tv_sec +
(double)usage.ru_utime.tv_usec * 1e-6;
}
else
timeused = 0;
#else
timeused = (double)clock() * (1.0 / CLOCKS_PER_SEC);
#endif
#endif
if (currentFrame && (timeused > 0.1))
{
showcnt += 50;
if (frames != 0)
fprintf(stderr,
"\r%5d/%-5d (%3d%%)| %5.1f | %6.1f/%-6.1f | %7.2fx | %.1f ",
currentFrame, frames, currentFrame*100/frames,
((double)totalBytesWritten * 8.0 / 1000.0) /
((double)infile->samples / infile->samplerate * currentFrame / frames),
timeused,
timeused * frames / currentFrame,
(1024.0 * currentFrame / infile->samplerate) / timeused,
timeused * (frames - currentFrame) / currentFrame);
else
fprintf(stderr,
"\r %5d | %6.1f | %7.2fx ",
currentFrame,
timeused,
(1024.0 * currentFrame / infile->samplerate) / timeused);
fflush(stderr);
#ifdef _WIN32
if (frames != 0)
{
sprintf(percent, "%.2f%% encoding %s",
100.0 * currentFrame / frames, audioFileName);
SetConsoleTitle(percent);
}
#endif
}
}
/* all done, bail out */
if (!samplesRead && !bytesWritten)
break ;
if (bytesWritten < 0)
{
fprintf(stderr, "faacEncEncode() failed\n");
break ;
}
if (bytesWritten > 0)
{
#ifdef HAVE_LIBMP4V2
u_int64_t samples_left = total_samples - encoded_samples + delay_samples;
MP4Duration dur = samples_left > frameSize ? frameSize : samples_left;
MP4Duration ofs = encoded_samples > 0 ? 0 : delay_samples;
if (container == MP4_CONTAINER)
{
/* write bitstream to mp4 file */
MP4WriteSample(MP4hFile, MP4track, bitbuf, bytesWritten, dur, ofs, 1);
}
else
{
#endif
/* write bitstream to aac file */
fwrite(bitbuf, 1, bytesWritten, outfile);
#ifdef HAVE_LIBMP4V2
}
encoded_samples += dur;
#endif
}
}
#ifdef HAVE_LIBMP4V2
/* clean up */
if (container == MP4_CONTAINER)
{
MP4Close(MP4hFile);
if (optimizeFlag == 1)
{
fprintf(stderr, "\n\nMP4 format optimization... ");
MP4Optimize(aacFileName, NULL, 0);
fprintf(stderr, "Done!");
}
} else
#endif
fclose(outfile);
fprintf(stderr, "\n\n");
}
faacEncClose(hEncoder);
wav_close(infile);
if (pcmbuf) free(pcmbuf);
if (bitbuf) free(bitbuf);
if (aacFileNameGiven) free(aacFileName);
}
return 0;
}
static av_cold int Faac_encode_init(AVCodecContext *avctx)
{
FaacAudioContext *s = avctx->priv_data;
faacEncConfigurationPtr faac_cfg;
unsigned long samples_input, max_bytes_output;
int ret;
/* number of channels */
if (avctx->channels < 1 || avctx->channels > 6) {
av_log(avctx, AV_LOG_ERROR, "encoding %d channel(s) is not allowed\n", avctx->channels);
ret = AVERROR(EINVAL);
goto error;
}
s->faac_handle = faacEncOpen(avctx->sample_rate,
avctx->channels,
&samples_input, &max_bytes_output);
if (!s->faac_handle) {
av_log(avctx, AV_LOG_ERROR, "error in faacEncOpen()\n");
ret = AVERROR_UNKNOWN;
goto error;
}
/* check faac version */
faac_cfg = faacEncGetCurrentConfiguration(s->faac_handle);
if (faac_cfg->version != FAAC_CFG_VERSION) {
av_log(avctx, AV_LOG_ERROR, "wrong libfaac version (compiled for: %d, using %d)\n", FAAC_CFG_VERSION, faac_cfg->version);
ret = AVERROR(EINVAL);
goto error;
}
/* put the options in the configuration struct */
switch(avctx->profile) {
case FF_PROFILE_AAC_MAIN:
faac_cfg->aacObjectType = MAIN;
break;
case FF_PROFILE_UNKNOWN:
case FF_PROFILE_AAC_LOW:
faac_cfg->aacObjectType = LOW;
break;
case FF_PROFILE_AAC_SSR:
faac_cfg->aacObjectType = SSR;
break;
case FF_PROFILE_AAC_LTP:
faac_cfg->aacObjectType = LTP;
break;
default:
av_log(avctx, AV_LOG_ERROR, "invalid AAC profile\n");
ret = AVERROR(EINVAL);
goto error;
}
faac_cfg->mpegVersion = MPEG4;
faac_cfg->useTns = 0;
faac_cfg->allowMidside = 1;
faac_cfg->bitRate = avctx->bit_rate / avctx->channels;
faac_cfg->bandWidth = avctx->cutoff;
if(avctx->flags & CODEC_FLAG_QSCALE) {
faac_cfg->bitRate = 0;
faac_cfg->quantqual = avctx->global_quality / FF_QP2LAMBDA;
}
faac_cfg->outputFormat = 1;
faac_cfg->inputFormat = FAAC_INPUT_16BIT;
if (avctx->channels > 2)
memcpy(faac_cfg->channel_map, channel_maps[avctx->channels-3],
avctx->channels * sizeof(int));
avctx->frame_size = samples_input / avctx->channels;
#if FF_API_OLD_ENCODE_AUDIO
avctx->coded_frame= avcodec_alloc_frame();
if (!avctx->coded_frame) {
ret = AVERROR(ENOMEM);
goto error;
}
#endif
/* Set decoder specific info */
avctx->extradata_size = 0;
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
unsigned char *buffer = NULL;
unsigned long decoder_specific_info_size;
if (!faacEncGetDecoderSpecificInfo(s->faac_handle, &buffer,
&decoder_specific_info_size)) {
avctx->extradata = av_malloc(decoder_specific_info_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!avctx->extradata) {
ret = AVERROR(ENOMEM);
goto error;
}
avctx->extradata_size = decoder_specific_info_size;
memcpy(avctx->extradata, buffer, avctx->extradata_size);
faac_cfg->outputFormat = 0;
}
free(buffer);
}
if (!faacEncSetConfiguration(s->faac_handle, faac_cfg)) {
av_log(avctx, AV_LOG_ERROR, "libfaac doesn't support this output format!\n");
ret = AVERROR(EINVAL);
goto error;
}
avctx->delay = FAAC_DELAY_SAMPLES;
ff_af_queue_init(avctx, &s->afq);
return 0;
error:
Faac_encode_close(avctx);
return ret;
}
bool AudioEncoderFAAC::initialize() {
if(encoder) {
STREAMER_ERROR("It seems that you already initialized the AudioEncoderFAAC. I'm not initializing again. First shutdown().");
return false;
}
if(!validateSettings(settings)) {
return false;
}
encoder = faacEncOpen(settings.samplerate,
getNumChannels(),
&nsamples_needed,
&nbytes_out);
if(!encoder) {
STREAMER_ERROR("Error while trying to open the FAAC encoder.\n");
return false;
}
faac_buffer = new unsigned char[nbytes_out];
if(!faac_buffer) {
STREAMER_ERROR("Erorr while allocating the buffer for the encoded faac data.\n");
shutdown();
return false;
}
STREAMER_STATUS("FAAC, nsamples_needed: %ld, nbytes_out: %ld\n", nsamples_needed, nbytes_out);
// configure faac
faacEncConfigurationPtr config = faacEncGetCurrentConfiguration(encoder);
config->mpegVersion = MPEG4;
config->aacObjectType = LOW;
config->useLfe = 0;
config->quantqual = 100;
config->bitRate = settings.bitrate * 1000 / getNumChannels();
config->outputFormat = 0; // 0 = Raw, 1 = ADTS
if(settings.in_bitsize == AV_AUDIO_BITSIZE_S16) {
config->inputFormat = FAAC_INPUT_16BIT;
}
else if(settings.in_bitsize == AV_AUDIO_BITSIZE_F32) {
config->inputFormat = FAAC_INPUT_FLOAT;
}
else {
STREAMER_ERROR("Cannot initialize the AudioEncoderFAAC because the in_bitsize is invalid. we only support S16 of F32.\n");
::exit(EXIT_FAILURE);
}
int r = faacEncSetConfiguration(encoder, config);
if(!r) {
STREAMER_ERROR("Error while setting the configuration for faac.\n");
shutdown();
return false;
}
// get the decoder specific config
unsigned char* header;
unsigned long header_size = 0;
r = faacEncGetDecoderSpecificInfo(encoder, &header, &header_size);
if(r < 0) {
STREAMER_ERROR("Error while trying to get the decoder specific info from libfaac.\n");
shutdown();
return false;
}
std::copy(header, header + header_size, std::back_inserter(audio_specific_config));
free(header);
header = NULL;
// write data to file if output file has been specified
if(output_file.size()) {
ofs.open(output_file.c_str(), std::ios::out | std::ios::binary);
if(!ofs.is_open()) {
STREAMER_ERROR("Cannot open the output file for the AudioEncoderFAAC: %s\n", output_file.c_str());
::exit(EXIT_FAILURE);
}
ofs.write((char*)header, header_size);
}
STREAMER_STATUS("Bitrate in bits per channel: %d, decoder size: %ld\n", config->bitRate, header_size);
return true;
}
int mpae_init_faac(audio_encoder_t *encoder)
{
if(encoder->params.channels < 1 || encoder->params.channels > 6 || (param_mpeg != 2 && param_mpeg != 4))
{
mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, unsupported number of channels: %d, or mpeg version: %d, exit\n", encoder->params.channels, param_mpeg);
return 0;
}
faac = faacEncOpen(encoder->params.sample_rate, encoder->params.channels, &samples_input, &max_bytes_output);
if(!faac)
{
mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, couldn't init, exit\n");
return 0;
}
mp_msg(MSGT_MENCODER, MSGL_V, "AE_FAAC, sample_input: %lu, max_bytes_output: %lu\n", samples_input, max_bytes_output);
config = faacEncGetCurrentConfiguration(faac);
if(!config)
{
mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, couldn't get init configuration, exit\n");
return 0;
}
param_bitrate *= 1000;
if(param_quality)
config->quantqual = param_quality;
else
config->bitRate = param_bitrate / encoder->params.channels;
if(param_format==33)
{
config->inputFormat = FAAC_INPUT_FLOAT;
divisor = 4;
}
else if(param_format==32)
{
config->inputFormat = FAAC_INPUT_32BIT;
divisor = 4;
}
else
{
config->inputFormat = FAAC_INPUT_16BIT;
divisor = 2;
}
config->outputFormat = param_raw ? 0 : 1; // 1 is ADTS
config->aacObjectType = param_object_type;
if(MAIN==0) config->aacObjectType--;
config->mpegVersion = (param_mpeg == 4 ? MPEG4 : MPEG2);
config->useTns = param_tns;
config->allowMidside = 1;
config->shortctl = SHORTCTL_NORMAL;
param_cutoff = param_cutoff ? param_cutoff : encoder->params.sample_rate / 2;
if(param_cutoff > encoder->params.sample_rate / 2)
param_cutoff = encoder->params.sample_rate / 2;
config->bandWidth = param_cutoff;
if(encoder->params.channels == 6)
config->useLfe = 1;
if(!faacEncSetConfiguration(faac, config))
{
mp_msg(MSGT_MENCODER, MSGL_FATAL, "AE_FAAC, counldn't set specified parameters, exiting\n");
return 0;
}
if(param_raw)
faacEncGetDecoderSpecificInfo(faac, &decoder_specific_buffer, &decoder_specific_len);
else
decoder_specific_len = 0;
encoder->params.bitrate = param_bitrate;
encoder->params.samples_per_frame = 1024;
encoder->decode_buffer_size = divisor * samples_input; //samples * 16 bits_per_sample
encoder->bind = bind_faac;
encoder->get_frame_size = get_frame_size;
encoder->encode = encode_faac;
encoder->close = close_faac;
return 1;
}
static av_cold int Faac_encode_init(AVCodecContext *avctx)
{
FaacAudioContext *s = avctx->priv_data;
faacEncConfigurationPtr faac_cfg;
unsigned long samples_input, max_bytes_output;
/* number of channels */
if (avctx->channels < 1 || avctx->channels > 6)
return -1;
s->faac_handle = faacEncOpen(avctx->sample_rate,
avctx->channels,
&samples_input, &max_bytes_output);
/* check faac version */
faac_cfg = faacEncGetCurrentConfiguration(s->faac_handle);
if (faac_cfg->version != FAAC_CFG_VERSION) {
av_log(avctx, AV_LOG_ERROR, "wrong libfaac version (compiled for: %d, using %d)\n", FAAC_CFG_VERSION, faac_cfg->version);
faacEncClose(s->faac_handle);
return -1;
}
/* put the options in the configuration struct */
switch(avctx->profile) {
case FF_PROFILE_AAC_MAIN:
faac_cfg->aacObjectType = MAIN;
break;
case FF_PROFILE_UNKNOWN:
case FF_PROFILE_AAC_LOW:
faac_cfg->aacObjectType = LOW;
break;
case FF_PROFILE_AAC_SSR:
faac_cfg->aacObjectType = SSR;
break;
case FF_PROFILE_AAC_LTP:
faac_cfg->aacObjectType = LTP;
break;
default:
av_log(avctx, AV_LOG_ERROR, "invalid AAC profile\n");
faacEncClose(s->faac_handle);
return -1;
}
faac_cfg->mpegVersion = MPEG4;
faac_cfg->useTns = 0;
faac_cfg->allowMidside = 1;
faac_cfg->bitRate = avctx->bit_rate / avctx->channels;
faac_cfg->bandWidth = avctx->cutoff;
if(avctx->flags & CODEC_FLAG_QSCALE) {
faac_cfg->bitRate = 0;
faac_cfg->quantqual = avctx->global_quality / FF_QP2LAMBDA;
}
faac_cfg->outputFormat = 1;
faac_cfg->inputFormat = FAAC_INPUT_16BIT;
avctx->frame_size = samples_input / avctx->channels;
avctx->coded_frame= avcodec_alloc_frame();
avctx->coded_frame->key_frame= 1;
/* Set decoder specific info */
avctx->extradata_size = 0;
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
unsigned char *buffer = NULL;
unsigned long decoder_specific_info_size;
if (!faacEncGetDecoderSpecificInfo(s->faac_handle, &buffer,
&decoder_specific_info_size)) {
avctx->extradata = av_malloc(decoder_specific_info_size + FF_INPUT_BUFFER_PADDING_SIZE);
avctx->extradata_size = decoder_specific_info_size;
memcpy(avctx->extradata, buffer, avctx->extradata_size);
faac_cfg->outputFormat = 0;
}
#undef free
free(buffer);
#define free please_use_av_free
}
if (!faacEncSetConfiguration(s->faac_handle, faac_cfg)) {
av_log(avctx, AV_LOG_ERROR, "libfaac doesn't support this output format!\n");
return -1;
}
return 0;
}
/***********************************************************************
* hb_work_encfaac_init
***********************************************************************
*
**********************************************************************/
int encfaacInit( hb_work_object_t * w, hb_job_t * job )
{
hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
hb_audio_t * audio = w->audio;
faacEncConfigurationPtr cfg;
uint8_t * bytes;
unsigned long length;
w->private_data = pv;
pv->job = job;
/* pass the number of channels used into the private work data */
pv->out_discrete_channels = hb_mixdown_get_discrete_channel_count(audio->config.out.mixdown);
pv->faac = faacEncOpen( audio->config.out.samplerate, pv->out_discrete_channels,
&pv->input_samples, &pv->output_bytes );
pv->buf = malloc( pv->input_samples * sizeof( float ) );
pv->obuf = malloc( pv->output_bytes );
pv->framedur = 90000.0 * pv->input_samples /
( audio->config.out.samplerate * pv->out_discrete_channels );
audio->config.out.samples_per_frame = pv->input_samples / pv->out_discrete_channels;
cfg = faacEncGetCurrentConfiguration( pv->faac );
cfg->mpegVersion = MPEG4;
cfg->aacObjectType = LOW;
cfg->allowMidside = 1;
/* channel configuration & remapping */
uint64_t layout = hb_ff_mixdown_xlat(audio->config.out.mixdown, NULL);
hb_audio_remap_build_table(&hb_aac_chan_map, audio->config.in.channel_map,
layout, cfg->channel_map);
switch (audio->config.out.mixdown)
{
case HB_AMIXDOWN_7POINT1:
cfg->channelConfiguration = 0;
cfg->numFrontChannels = 3;
cfg->numSideChannels = 2;
cfg->numBackChannels = 2;
cfg->numLFEChannels = 1;
break;
case HB_AMIXDOWN_6POINT1:
cfg->channelConfiguration = 0;
cfg->numFrontChannels = 3;
cfg->numSideChannels = 0;
cfg->numBackChannels = 3;
cfg->numLFEChannels = 1;
break;
case HB_AMIXDOWN_5_2_LFE:
cfg->channelConfiguration = 7;
break;
default:
cfg->channelConfiguration =
hb_mixdown_get_discrete_channel_count(audio->config.out.mixdown);
break;
}
cfg->useTns = 0;
cfg->bitRate = audio->config.out.bitrate * 1000 / pv->out_discrete_channels; /* Per channel */
cfg->bandWidth = 0;
cfg->outputFormat = 0;
cfg->inputFormat = FAAC_INPUT_FLOAT;
if( !faacEncSetConfiguration( pv->faac, cfg ) )
{
hb_log( "faacEncSetConfiguration failed" );
*job->done_error = HB_ERROR_INIT;
*job->die = 1;
return 0;
}
if( faacEncGetDecoderSpecificInfo( pv->faac, &bytes, &length ) < 0 )
{
hb_log( "faacEncGetDecoderSpecificInfo failed" );
*job->done_error = HB_ERROR_INIT;
*job->die = 1;
return 0;
}
memcpy( w->config->extradata.bytes, bytes, length );
w->config->extradata.length = length;
free( bytes );
pv->list = hb_list_init();
return 0;
}
//________________________________________________
// Init lame encoder
// frequence : Impose frequency , 0 means reuse the incoming fq
// mode : ADM_STEREO etc...
// bitrate : Bitrate in kbps (96,192...)
// return 0 : init failed
// 1 : init succeeded
//_______________________________________________
uint8_t AUDMEncoder_Faac::init(ADM_audioEncoderDescriptor *config)
{
unsigned long int samples_input, max_bytes_output;
faacEncConfigurationPtr cfg;
int ret=0;
printf("[FAAC] Incoming Fq :%u\n",_wavheader->frequency);
_handle = faacEncOpen(_wavheader->frequency,
_wavheader->channels,
&samples_input,
&max_bytes_output);
if(!_handle)
{
printf("Cannot open faac with fq=%lu chan=%lu br=%lu\n",
_wavheader->frequency,_wavheader->channels,config->bitrate);
return 0;
}
printf(" [FAAC] : Sample input:%d, max byte output%d \n",samples_input,max_bytes_output);
cfg= faacEncGetCurrentConfiguration(_handle);
// Set default conf, same as ffmpeg
cfg->aacObjectType = LOW;
cfg->mpegVersion = MPEG4;
cfg->bandWidth= (_wavheader->frequency*3)/4; // Should be relevant
cfg->useTns = 0;
cfg->allowMidside = 0;
cfg->bitRate = (config->bitrate*1000)/_wavheader->channels; // It is per channel
cfg->outputFormat = 0; // 0 Raw 1 ADTS
cfg->inputFormat = FAAC_INPUT_FLOAT;
cfg->useLfe=0;
if (!(ret=faacEncSetConfiguration(_handle, cfg)))
{
printf("[FAAC] Cannot set conf for faac with fq=%lu chan=%lu br=%lu (err:%d)\n",
_wavheader->frequency,_wavheader->channels,config->bitrate,ret);
return 0;
}
unsigned char *data=NULL;
unsigned long size=0;
if((ret=faacEncGetDecoderSpecificInfo(_handle, &data,&size)))
{
printf("FAAC: GetDecoderSpecific info failed (err:%d)\n",ret);
return 0;
}
_extraSize=size;
_extraData=new uint8_t[size];
memcpy(_extraData,data,size);
// update
_wavheader->byterate=(config->bitrate*1000)/8;
// _wavheader->dwScale=1024;
// _wavheader->dwSampleSize=0;
_wavheader->blockalign=4096;
_wavheader->bitspersample=0;
_chunk=samples_input;
printf("[Faac] Initialized :\n");
printf("[Faac]Version : %s\n",cfg->name);
printf("[Faac]Bitrate : %lu\n",cfg->bitRate);
printf("[Faac]Mpeg2 (1)/4(0) : %u\n",cfg->mpegVersion);
printf("[Faac]Use lfe ) : %u\n",cfg->useLfe);
printf("[Faac]Sample output : %lu\n",_chunk / _wavheader->channels);
printf("[Faac]Bitrate : %lu\n",cfg->bitRate*_wavheader->channels);
return 1;
}
/***********************************************************************
* hb_work_encfaac_init
***********************************************************************
*
**********************************************************************/
int encfaacInit( hb_work_object_t * w, hb_job_t * job )
{
hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
hb_audio_t * audio = w->audio;
faacEncConfigurationPtr cfg;
uint8_t * bytes;
unsigned long length;
w->private_data = pv;
pv->job = job;
/* pass the number of channels used into the private work data */
pv->out_discrete_channels = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(audio->config.out.mixdown);
/* if the sample rate is 'auto' and that has given us an invalid output */
/* rate, map it to the next highest output rate or 48K if above the highest. */
int rate_index = find_samplerate(audio->config.out.samplerate);
if ( audio->config.out.samplerate != valid_rates[rate_index] )
{
int rate = valid_rates[valid_rates[rate_index]? rate_index : rate_index - 1];
hb_log( "encfaac changing output samplerate from %d to %d",
audio->config.out.samplerate, rate );
audio->config.out.samplerate = rate;
/* if the new rate is over the max bandwidth per channel limit */
/* lower the bandwidth. */
double bw = audio->config.out.bitrate * 1000 / pv->out_discrete_channels;
if ( bw > (double)rate * (6144./1024.) )
{
int newbr = (double)rate * (6.144/1024.) * pv->out_discrete_channels;
hb_log( "encfaac changing output bitrate from %d to %d",
audio->config.out.bitrate, newbr );
audio->config.out.bitrate = newbr;
}
}
pv->faac = faacEncOpen( audio->config.out.samplerate, pv->out_discrete_channels,
&pv->input_samples, &pv->output_bytes );
pv->buf = malloc( pv->input_samples * sizeof( float ) );
pv->obuf = malloc( pv->output_bytes );
pv->framedur = 90000.0 * pv->input_samples /
( audio->config.out.samplerate * pv->out_discrete_channels );
audio->config.out.samples_per_frame = pv->input_samples / pv->out_discrete_channels;
cfg = faacEncGetCurrentConfiguration( pv->faac );
cfg->mpegVersion = MPEG4;
cfg->aacObjectType = LOW;
cfg->allowMidside = 1;
if (pv->out_discrete_channels == 6) {
/* we are preserving 5.1 audio into 6-channel AAC,
so indicate that we have an lfe channel */
cfg->useLfe = 1;
} else {
cfg->useLfe = 0;
}
cfg->useTns = 0;
cfg->bitRate = audio->config.out.bitrate * 1000 / pv->out_discrete_channels; /* Per channel */
cfg->bandWidth = 0;
cfg->outputFormat = 0;
cfg->inputFormat = FAAC_INPUT_FLOAT;
if( ( audio->config.out.mixdown == HB_AMIXDOWN_6CH ) && ( audio->config.in.channel_map != &hb_qt_chan_map ) )
{
if( audio->config.in.channel_map == &hb_ac3_chan_map )
{
cfg->channel_map[0] = 2;
cfg->channel_map[1] = 1;
cfg->channel_map[2] = 3;
cfg->channel_map[3] = 4;
cfg->channel_map[4] = 5;
cfg->channel_map[5] = 0;
}
else if( audio->config.in.channel_map == &hb_smpte_chan_map )
{
cfg->channel_map[0] = 2;
cfg->channel_map[1] = 0;
cfg->channel_map[2] = 1;
cfg->channel_map[3] = 4;
cfg->channel_map[4] = 5;
cfg->channel_map[5] = 3;
}
}
if( !faacEncSetConfiguration( pv->faac, cfg ) )
{
hb_log( "faacEncSetConfiguration failed" );
*job->die = 1;
return 0;
}
if( faacEncGetDecoderSpecificInfo( pv->faac, &bytes, &length ) < 0 )
{
hb_log( "faacEncGetDecoderSpecificInfo failed" );
*job->die = 1;
return 0;
}
memcpy( w->config->extradata.bytes, bytes, length );
w->config->extradata.length = length;
free( bytes );
pv->list = hb_list_init();
return 0;
}
static int Faac_encode_init(AVCodecContext *avctx)
{
FaacAudioContext *s = avctx->priv_data;
faacEncConfigurationPtr faac_cfg;
unsigned long samples_input, max_bytes_output;
/* number of channels */
if (avctx->channels < 1 || avctx->channels > 6)
return -1;
s->faac_handle = faacEncOpen(avctx->sample_rate,
avctx->channels,
&samples_input, &max_bytes_output);
/* check faac version */
faac_cfg = faacEncGetCurrentConfiguration(s->faac_handle);
if (faac_cfg->version != FAAC_CFG_VERSION) {
av_log(avctx, AV_LOG_ERROR, "wrong libfaac version (compiled for: %d, using %d)\n", FAAC_CFG_VERSION, faac_cfg->version);
faacEncClose(s->faac_handle);
return -1;
}
/* put the options in the configuration struct */
faac_cfg->aacObjectType = LOW;
faac_cfg->mpegVersion = MPEG4;
faac_cfg->useTns = 0;
faac_cfg->allowMidside = 1;
faac_cfg->bitRate = avctx->bit_rate / avctx->channels;
if(avctx->flags & CODEC_FLAG_QSCALE) {
faac_cfg->bitRate = 0;
faac_cfg->quantqual = avctx->global_quality / FF_QP2LAMBDA;
}
faac_cfg->outputFormat = 0;
faac_cfg->inputFormat = FAAC_INPUT_16BIT;
if (!faacEncSetConfiguration(s->faac_handle, faac_cfg)) {
av_log(avctx, AV_LOG_ERROR, "libfaac doesn't support this output format!\n");
return -1;
}
avctx->frame_size = samples_input / avctx->channels;
avctx->coded_frame= avcodec_alloc_frame();
avctx->coded_frame->key_frame= 1;
/* Set decoder specific info */
avctx->extradata_size = 0;
if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) {
unsigned char *buffer;
unsigned long decoder_specific_info_size;
if (!faacEncGetDecoderSpecificInfo(s->faac_handle, &buffer,
&decoder_specific_info_size)) {
avctx->extradata = buffer;
avctx->extradata_size = decoder_specific_info_size;
}
}
return 0;
}
bool BleAudioEncoder_AAC::init(int samplerate, int channel, int bitrate)
{
if (channel < 1 || channel > 6)
return false;
m_samplerate = samplerate;
m_channels = channel;
m_bitrate = bitrate;
faacEncConfigurationPtr aacConfig;
m_faacHandle = faacEncOpen(m_samplerate, m_channels, &m_samplesInputSize, &m_maxOutputSize);
// check faac version
aacConfig = faacEncGetCurrentConfiguration(m_faacHandle);
if (aacConfig->version != FAAC_CFG_VERSION)
{
faacEncClose(m_faacHandle);
log_error("faacEncGetCurrentConfiguration failed");
return false;
}
// reserve reuseable output buffer
m_outputBuffer = new unsigned char[m_maxOutputSize];
// put the options in the configuration struct.
aacConfig->aacObjectType = LOW; // MAIN
aacConfig->mpegVersion = MPEG4;
aacConfig->useTns = 1;
aacConfig->useLfe = 1;
aacConfig->allowMidside = 1;
aacConfig->bitRate = m_bitrate / channel;
aacConfig->bandWidth = 0;
aacConfig->quantqual = 100;
aacConfig->outputFormat = 0;
aacConfig->inputFormat = FAAC_INPUT_16BIT;
aacConfig->shortctl = SHORTCTL_NORMAL;
if (!faacEncSetConfiguration(m_faacHandle, aacConfig))
{
log_error("faacEncSetConfiguration failed");
return false;
}
m_nFrameSize = m_samplesInputSize / channel;
m_pInBuf = new int32_t[m_samplesInputSize];
// set decoder specific info
unsigned long extradata_size = 0;
unsigned char *buffer;
unsigned long decoder_specific_info_size;
if (!faacEncGetDecoderSpecificInfo(m_faacHandle, &buffer, &decoder_specific_info_size)) {
extradata_size = decoder_specific_info_size;
}
log_trace("aac encoder extradata_size=%d", extradata_size);
m_header.clear();
unsigned char af[2] = {0xaf, 0x00};
m_header.append((char *)af, 2);
m_header.append((char*)buffer, extradata_size);
BleFreeArray(buffer);
return true;
}
/***********************************************************************
* hb_work_encfaac_init
***********************************************************************
*
**********************************************************************/
int encfaacInit( hb_work_object_t * w, hb_job_t * job )
{
hb_work_private_t * pv = calloc( 1, sizeof( hb_work_private_t ) );
hb_audio_t * audio = w->audio;
faacEncConfigurationPtr cfg;
uint8_t * bytes;
unsigned long length;
w->private_data = pv;
pv->job = job;
/* pass the number of channels used into the private work data */
pv->out_discrete_channels = hb_mixdown_get_discrete_channel_count(audio->config.out.mixdown);
/* if the sample rate is 'auto' and that has given us an invalid output */
/* rate, map it to the next highest output rate or 48K if above the highest. */
int rate_index = find_samplerate(audio->config.out.samplerate);
if ( audio->config.out.samplerate != valid_rates[rate_index] )
{
int rate = valid_rates[valid_rates[rate_index]? rate_index : rate_index - 1];
hb_log( "encfaac changing output samplerate from %d to %d",
audio->config.out.samplerate, rate );
audio->config.out.samplerate = rate;
/* if the new rate is over the max bandwidth per channel limit */
/* lower the bandwidth. */
double bw = audio->config.out.bitrate * 1000 / pv->out_discrete_channels;
if ( bw > (double)rate * (6144./1024.) )
{
int newbr = (double)rate * (6.144/1024.) * pv->out_discrete_channels;
hb_log( "encfaac changing output bitrate from %d to %d",
audio->config.out.bitrate, newbr );
audio->config.out.bitrate = newbr;
}
}
pv->faac = faacEncOpen( audio->config.out.samplerate, pv->out_discrete_channels,
&pv->input_samples, &pv->output_bytes );
pv->buf = malloc( pv->input_samples * sizeof( float ) );
pv->obuf = malloc( pv->output_bytes );
pv->framedur = 90000.0 * pv->input_samples /
( audio->config.out.samplerate * pv->out_discrete_channels );
audio->config.out.samples_per_frame = pv->input_samples / pv->out_discrete_channels;
cfg = faacEncGetCurrentConfiguration( pv->faac );
cfg->mpegVersion = MPEG4;
cfg->aacObjectType = LOW;
cfg->allowMidside = 1;
// channel remapping, LFE
uint64_t layout;
int *remap_table;
layout = hb_ff_mixdown_xlat(audio->config.out.mixdown, NULL);
remap_table = hb_audio_remap_build_table(layout, &hb_aac_chan_map,
audio->config.in.channel_map);
if (remap_table != NULL)
{
// faac does its own remapping
memcpy(cfg->channel_map, remap_table,
pv->out_discrete_channels * sizeof(int));
free(remap_table);
}
cfg->useLfe = !!(layout & AV_CH_LOW_FREQUENCY);
cfg->useTns = 0;
cfg->bitRate = audio->config.out.bitrate * 1000 / pv->out_discrete_channels; /* Per channel */
cfg->bandWidth = 0;
cfg->outputFormat = 0;
cfg->inputFormat = FAAC_INPUT_FLOAT;
if( !faacEncSetConfiguration( pv->faac, cfg ) )
{
hb_log( "faacEncSetConfiguration failed" );
*job->die = 1;
return 0;
}
if( faacEncGetDecoderSpecificInfo( pv->faac, &bytes, &length ) < 0 )
{
hb_log( "faacEncGetDecoderSpecificInfo failed" );
*job->die = 1;
return 0;
}
memcpy( w->config->extradata.bytes, bytes, length );
w->config->extradata.length = length;
free( bytes );
pv->list = hb_list_init();
return 0;
}
int encoder_write(unsigned long id, void* rbuffer, unsigned long bsize)
{
int bytesencoded = 0;
double *sbuffer = (double*) rbuffer;
unsigned char *bbuffer = (unsigned char*) rbuffer;
unsigned int framesize = 0;
if(pestreams[id].firstwrite)
{
int v = 0;
pestreams[id].enchandle = faacEncOpen(pestreams[id].cfrequency, pestreams[id].cchannels,
&pestreams[id].samplesin, &pestreams[id].maxbytesout);
pestreams[id].obuffer = (unsigned char*)sys_mem_alloc(pestreams[id].maxbytesout);
pestreams[id].cachebuffer = (unsigned char*)sys_mem_alloc(pestreams[id].samplesin * 10);
pestreams[id].fb_size = 0;
pestreams[id].floatbuffer = 0;
pestreams[id].econfig = faacEncGetCurrentConfiguration(pestreams[id].enchandle);
pestreams[id].econfig->inputFormat = FAAC_INPUT_FLOAT;
pestreams[id].econfig->aacObjectType = LOW; //objectType;
if(pestreams[id].ismp4)
{
pestreams[id].econfig->mpegVersion = MPEG4;
pestreams[id].econfig->outputFormat = 0;
pestreams[id].econfig->allowMidside = 1;
pestreams[id].econfig->shortctl = SHORTCTL_NORMAL;
if(fsettings.plugin_settings_getnum("aac", "bitrate", &v, 0, 0))v = 0xa;
pestreams[id].econfig->bitRate = (ibitrates[v] * 1000) / pestreams[id].cchannels;
v = 0x2;
if(fsettings.plugin_settings_getnum("aac", "quality", &v, 0, 0))v = 0x2;
pestreams[id].econfig->quantqual = iqualities[v];
pestreams[id].econfig->bandWidth = pestreams[id].cfrequency / 2;
}else{
pestreams[id].econfig->mpegVersion = MPEG2;
pestreams[id].econfig->useTns = 0;
pestreams[id].econfig->shortctl = SHORTCTL_NORMAL;
pestreams[id].econfig->useLfe = 0;
pestreams[id].econfig->allowMidside = 1;
if(fsettings.plugin_settings_getnum("aac", "bitrate", &v, 0, 0))v = 0xa;
pestreams[id].econfig->bitRate = (ibitrates[v] * 1000) / pestreams[id].cchannels;
v = 0x2;
if(fsettings.plugin_settings_getnum("aac", "quality", &v, 0, 0))v = 0x2;
pestreams[id].econfig->quantqual = iqualities[v];
pestreams[id].econfig->bandWidth = 0;
}
faacEncSetConfiguration(pestreams[id].enchandle, pestreams[id].econfig);
/* mp4 stuff */
if(pestreams[id].ismp4)
{
unsigned char *ASC = 0;
unsigned long ASCLength = 0;
char afname[v_sys_maxpath];
BOOL usedef = 1;
WideCharToMultiByte(CP_ACP, 0, pestreams[id].filepath, -1, afname, sizeof(afname), "?", &usedef);
# ifdef MP4_CREATE_EXTENSIBLE_FORMAT
pestreams[id].mp4file = MP4Create(afname, 0, 0);
# else
pestreams[id].mp4file = MP4Create(afname, 0, 0, 0);
# endif
MP4SetTimeScale(pestreams[id].mp4file, 90000);
pestreams[id].mp4track = MP4AddAudioTrack(pestreams[id].mp4file, pestreams[id].cfrequency, MP4_INVALID_DURATION, MP4_MPEG4_AUDIO_TYPE);
MP4SetAudioProfileLevel(pestreams[id].mp4file, 0x0F);
faacEncGetDecoderSpecificInfo(pestreams[id].enchandle, &ASC, &ASCLength);
MP4SetTrackESConfiguration(pestreams[id].mp4file, pestreams[id].mp4track, ASC, ASCLength);
free(ASC);
MP4SetMetadataTool(pestreams[id].mp4file, "Fennec Player 1.1 (libfaac)");
}
pestreams[id].totalsamples = 0;
pestreams[id].encodedsamples = 0;
pestreams[id].cachesize = 0;
pestreams[id].firstwrite = 0;
}
/* if(pestreams[id].cbitspersample == 64) standard */
{
unsigned int i = 0;
unsigned int sbytes = pestreams[id].cbitspersample / 8;
framesize = pestreams[id].samplesin / pestreams[id].cchannels;
if(pestreams[id].ismp4)
pestreams[id].totalsamples += bsize / sbytes;
while(1)
{
if((int)(bsize / sbytes) - (int)i < (int)pestreams[id].samplesin)
{
if((int)(bsize / sbytes) - (int)i > 0)
{
memcpy(pestreams[id].cachebuffer + pestreams[id].cachesize, sbuffer + i, (bsize / sbytes) - i);
pestreams[id].cachesize += (bsize / sbytes) - i;
}
break;
}
if(pestreams[id].cachesize)
{
memcpy(pestreams[id].cachebuffer + pestreams[id].cachesize, sbuffer + i, (pestreams[id].samplesin * sbytes) - pestreams[id].cachesize);
local_write_doublebuffer(id, (double*)pestreams[id].cachebuffer, pestreams[id].samplesin, bytesencoded, framesize);
pestreams[id].cachesize = 0;
i += pestreams[id].samplesin - pestreams[id].cachesize;
}else{
local_write_doublebuffer(id, (double*)(sbuffer + i), pestreams[id].samplesin, bytesencoded, framesize);
i += pestreams[id].samplesin;
}
}
}
return 1;
}
