long MP3_create(const char* format_parameters, amci_codec_fmt_info_t* format_description) {
mp3_coder_state* coder_state;
int ret_code;
coder_state = malloc(sizeof(mp3_coder_state));
if (!coder_state) {
ERROR("no memory for allocating mp3 coder state\n");
return -1;
}
DBG("MP3: creating lame %s\n", get_lame_version());
format_description[0].id = 0;
coder_state->gfp = lame_init();
if (!coder_state->gfp) {
ERROR("initialiting lame\n");
free(coder_state);
return -1;
}
lame_set_errorf(coder_state->gfp, &no_output);
lame_set_debugf(coder_state->gfp, &no_output);
lame_set_msgf(coder_state->gfp, &no_output);
lame_set_num_channels(coder_state->gfp,1);
lame_set_in_samplerate(coder_state->gfp,8000);
lame_set_brate(coder_state->gfp,16);
lame_set_mode(coder_state->gfp,3); // mono
lame_set_quality(coder_state->gfp,2); /* 2=high 5 = medium 7=low */
id3tag_init(coder_state->gfp);
id3tag_set_title(coder_state->gfp, "mp3 voicemail by iptel.org");
ret_code = lame_init_params(coder_state->gfp);
if (ret_code < 0) {
ERROR("lame encoder init failed: return code is %d\n", ret_code);
free(coder_state);
return -1;
}
#ifdef WITH_MPG123DECODER
coder_state->mpg123_h = mpg123_new(NULL, NULL);
if (!coder_state->mpg123_h) {
ERROR("initializing mpg123 decoder instance\n");
return -1;
}
/* suppress output */
mpg123_param(coder_state->mpg123_h, MPG123_FLAGS, MPG123_QUIET /* | MPG123_FORCE_MONO */,0);
/* mpg123_param(coder_state->mpg123_h, MPG123_VERBOSE, 0, 0); */
#endif
return (long)coder_state;
}
static switch_status_t shout_file_open(switch_file_handle_t *handle, const char *path)
{
shout_context_t *context;
char *host, *file;
char *username, *password, *port;
char *err = NULL;
const char *mpg123err = NULL;
int portno = 0;
if ((context = switch_core_alloc(handle->memory_pool, sizeof(*context))) == 0) {
return SWITCH_STATUS_MEMERR;
}
if (!handle->samplerate) {
handle->samplerate = 8000;
}
context->memory_pool = handle->memory_pool;
context->samplerate = handle->samplerate;
context->handle = handle;
switch_thread_rwlock_create(&(context->rwlock), context->memory_pool);
switch_thread_rwlock_rdlock(context->rwlock);
switch_mutex_init(&context->audio_mutex, SWITCH_MUTEX_NESTED, context->memory_pool);
if (switch_test_flag(handle, SWITCH_FILE_FLAG_READ)) {
if (switch_buffer_create_dynamic(&context->audio_buffer, TC_BUFFER_SIZE, TC_BUFFER_SIZE * 2, 0) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n");
goto error;
}
context->mh = our_mpg123_new(NULL, NULL);
if (mpg123_format_all(context->mh) != MPG123_OK) {
MPGERROR();
}
if (mpg123_param(context->mh, MPG123_FORCE_RATE, context->samplerate, 0) != MPG123_OK) {
MPGERROR();
}
if (handle->handler) {
if (mpg123_param(context->mh, MPG123_FLAGS, MPG123_SEEKBUFFER | MPG123_MONO_MIX, 0) != MPG123_OK) {
MPGERROR();
}
if (mpg123_open_feed(context->mh) != MPG123_OK) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening mpg feed\n");
mpg123err = mpg123_strerror(context->mh);
goto error;
}
context->stream_url = switch_core_sprintf(context->memory_pool, "http://%s", path);
context->prebuf = handle->prebuf;
launch_read_stream_thread(context);
} else {
handle->seekable = 1;
if (mpg123_param(context->mh, MPG123_FLAGS, MPG123_MONO_MIX, 0) != MPG123_OK) {
MPGERROR();
}
if (mpg123_open(context->mh, path) != MPG123_OK) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening %s\n", path);
mpg123err = mpg123_strerror(context->mh);
goto error;
}
}
} else if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) {
if (switch_test_flag(handle, SWITCH_FILE_WRITE_APPEND)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Appending to MP3 not supported.\n");
}
if (!(context->gfp = lame_init())) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not allocate lame\n");
goto error;
}
if (!handle->handler) {
id3tag_init(context->gfp);
id3tag_v2_only(context->gfp);
id3tag_pad_v2(context->gfp);
}
context->channels = handle->channels;
lame_set_brate(context->gfp, 16 * (handle->samplerate / 8000) * handle->channels);
lame_set_num_channels(context->gfp, handle->channels);
lame_set_in_samplerate(context->gfp, handle->samplerate);
lame_set_out_samplerate(context->gfp, handle->samplerate);
if (handle->channels == 2) {
lame_set_mode(context->gfp, STEREO);
} else {
lame_set_mode(context->gfp, MONO);
}
lame_set_quality(context->gfp, 2); /* 2=high 5 = medium 7=low */
lame_set_errorf(context->gfp, log_error);
lame_set_debugf(context->gfp, log_debug);
lame_set_msgf(context->gfp, log_msg);
if (handle->handler) {
if (switch_buffer_create_dynamic(&context->audio_buffer, MY_BLOCK_SIZE, MY_BUF_LEN, 0) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Memory Error!\n");
goto error;
}
lame_set_bWriteVbrTag(context->gfp, 0);
lame_mp3_tags_fid(context->gfp, NULL);
username = switch_core_strdup(handle->memory_pool, path);
if (!(password = strchr(username, ':'))) {
err = "invalid url";
goto error;
}
*password++ = '\0';
if (!(host = strchr(password, '@'))) {
err = "invalid url";
goto error;
}
*host++ = '\0';
if ((file = strchr(host, '/'))) {
*file++ = '\0';
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid URL: %s\n", path);
goto error;
}
if ((port = strchr(host, ':'))) {
*port++ = '\0';
if (port) {
portno = atoi(port);
}
}
if (!portno) {
portno = 8000;
}
if (!(context->shout = shout_new())) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not allocate shout_t\n");
goto error;
}
if (shout_set_host(context->shout, host) != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting hostname: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_protocol(context->shout, SHOUT_PROTOCOL_HTTP) != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting protocol: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_port(context->shout, portno) != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting port: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_password(context->shout, password) != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting password: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_mount(context->shout, file) != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting mount: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_user(context->shout, username) != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting user: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_url(context->shout, "http://www.freeswitch.org") != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting name: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_description(context->shout, "FreeSWITCH mod_shout Broadcasting Module") != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting description: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_audio_info(context->shout, "bitrate", "24000") != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting bitrate: %s\n", shout_get_error(context->shout));
goto error;
}
if (shout_set_format(context->shout, SHOUT_FORMAT_MP3) != SHOUTERR_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error setting format: %s\n", shout_get_error(context->shout));
goto error;
}
} else {
/* lame being lame and all has FILE * coded into it's API for some functions so we gotta use it */
if (!(context->fp = fopen(path, "wb+"))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error opening %s\n", path);
goto error;
}
}
}
handle->samples = 0;
handle->format = 0;
handle->sections = 0;
handle->speed = 0;
handle->private_info = context;
switch_thread_rwlock_unlock(context->rwlock);
return SWITCH_STATUS_SUCCESS;
error:
switch_thread_rwlock_unlock(context->rwlock);
if (err) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error: %s\n", err);
}
if (mpg123err) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error from mpg123: %s\n", mpg123err);
}
free_context(context);
return SWITCH_STATUS_GENERR;
}
void do_broadcast(switch_stream_handle_t *stream)
{
char *path_info = switch_event_get_header(stream->param_event, "http-path-info");
char *file;
lame_global_flags *gfp = NULL;
switch_file_handle_t fh = { 0 };
unsigned char mp3buf[TC_BUFFER_SIZE] = "";
uint8_t buf[1024];
int rlen;
int is_local = 0;
uint32_t interval = 20000;
if (strstr(path_info + 7, "://")) {
file = strdup(path_info + 7);
is_local++;
} else {
file = switch_mprintf("%s/streamfiles/%s", SWITCH_GLOBAL_dirs.base_dir, path_info + 7);
}
assert(file);
if (switch_core_file_open(&fh, file, 0, 0, SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT, NULL) != SWITCH_STATUS_SUCCESS) {
memset(&fh, 0, sizeof(fh));
stream->write_function(stream, "Content-type: text/html\r\n\r\n<h2>File not found</h2>\n");
goto end;
}
if (switch_test_flag((&fh), SWITCH_FILE_NATIVE)) {
stream->write_function(stream, "Content-type: text/html\r\n\r\n<h2>File format not supported</h2>\n");
goto end;
}
if (!(gfp = lame_init())) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not allocate lame\n");
goto end;
}
lame_set_num_channels(gfp, fh.channels);
lame_set_in_samplerate(gfp, fh.samplerate);
lame_set_brate(gfp, 16 * (fh.samplerate / 8000) * fh.channels);
lame_set_mode(gfp, 3);
lame_set_quality(gfp, 2);
lame_set_errorf(gfp, log_error);
lame_set_debugf(gfp, log_debug);
lame_set_msgf(gfp, log_msg);
lame_set_bWriteVbrTag(gfp, 0);
lame_mp3_tags_fid(gfp, NULL);
lame_init_params(gfp);
lame_print_config(gfp);
stream->write_function(stream, "Content-type: audio/mpeg\r\n" "Content-Disposition: inline; filename=\"%s.mp3\"\r\n\r\n", path_info + 7);
if (fh.interval) {
interval = fh.interval * 1000;
}
for (;;) {
switch_size_t samples = sizeof(buf) / 2;
switch_core_file_read(&fh, buf, &samples);
if (is_local) {
switch_yield(interval);
}
if (!samples) {
break;
}
if ((rlen = lame_encode_buffer(gfp, (void *) buf, NULL, samples, mp3buf, sizeof(mp3buf))) < 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "MP3 encode error %d!\n", rlen);
goto end;
}
if (rlen) {
if (stream->raw_write_function(stream, mp3buf, rlen)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Disconnected\n");
goto end;
}
}
}
while ((rlen = lame_encode_flush(gfp, mp3buf, sizeof(mp3buf))) > 0) {
if (stream->raw_write_function(stream, mp3buf, rlen)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Disconnected\n");
goto end;
}
}
end:
if (fh.channels) {
switch_core_file_close(&fh);
}
switch_safe_free(file);
if (gfp) {
lame_close(gfp);
gfp = NULL;
}
}
void do_telecast(switch_stream_handle_t *stream)
{
char *path_info = switch_event_get_header(stream->param_event, "http-path-info");
char *uuid = strdup(path_info + 4);
switch_core_session_t *tsession;
char *fname = "stream.mp3";
if ((fname = strchr(uuid, '/'))) {
*fname++ = '\0';
}
if (!(tsession = switch_core_session_locate(uuid))) {
char *ref = switch_event_get_header(stream->param_event, "http-referer");
stream->write_function(stream, "Content-type: text/html\r\n\r\n<h2>Not Found!</h2>\n" "<META http-equiv=\"refresh\" content=\"1;URL=%s\">", ref);
} else {
switch_media_bug_t *bug = NULL;
switch_buffer_t *buffer = NULL;
switch_mutex_t *mutex;
switch_channel_t *channel = switch_core_session_get_channel(tsession);
lame_global_flags *gfp = NULL;
switch_codec_implementation_t read_impl = { 0 };
switch_core_session_get_read_impl(tsession, &read_impl);
if (switch_channel_test_flag(channel, CF_PROXY_MODE)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Stepping into media path so this will work!\n");
switch_ivr_media(uuid, SMF_REBRIDGE);
}
if (!(gfp = lame_init())) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Could not allocate lame\n");
goto end;
}
lame_set_num_channels(gfp, read_impl.number_of_channels);
lame_set_in_samplerate(gfp, read_impl.actual_samples_per_second);
lame_set_brate(gfp, 16 * (read_impl.actual_samples_per_second / 8000) * read_impl.number_of_channels);
lame_set_mode(gfp, 3);
lame_set_quality(gfp, 2);
lame_set_errorf(gfp, log_error);
lame_set_debugf(gfp, log_debug);
lame_set_msgf(gfp, log_msg);
lame_set_bWriteVbrTag(gfp, 0);
lame_mp3_tags_fid(gfp, NULL);
lame_init_params(gfp);
lame_print_config(gfp);
switch_mutex_init(&mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(tsession));
switch_buffer_create_dynamic(&buffer, 1024, 2048, 0);
switch_buffer_add_mutex(buffer, mutex);
if (switch_core_media_bug_add(tsession, "telecast", NULL,
telecast_callback, buffer, 0,
SMBF_READ_STREAM | SMBF_WRITE_STREAM | SMBF_READ_PING, &bug) != SWITCH_STATUS_SUCCESS) {
goto end;
}
stream->write_function(stream, "Content-type: audio/mpeg\r\n" "Content-Disposition: inline; filename=\"%s\"\r\n\r\n", fname);
while (switch_channel_ready(channel)) {
unsigned char mp3buf[TC_BUFFER_SIZE] = "";
int rlen;
uint8_t buf[1024];
switch_size_t bytes = 0;
if (switch_buffer_inuse(buffer) >= 1024) {
switch_buffer_lock(buffer);
bytes = switch_buffer_read(buffer, buf, sizeof(buf));
switch_buffer_unlock(buffer);
} else {
if (!bytes) {
switch_cond_next();
continue;
}
memset(buf, 0, bytes);
}
if ((rlen = lame_encode_buffer(gfp, (void *) buf, NULL, bytes / 2, mp3buf, sizeof(mp3buf))) < 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "MP3 encode error %d!\n", rlen);
goto end;
}
if (rlen) {
if (stream->raw_write_function(stream, mp3buf, rlen)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Disconnected\n");
goto end;
}
}
}
end:
switch_safe_free(uuid);
if (gfp) {
lame_close(gfp);
gfp = NULL;
}
if (bug) {
switch_core_media_bug_remove(tsession, &bug);
}
if (buffer) {
switch_buffer_destroy(&buffer);
}
switch_core_session_rwunlock(tsession);
}
}
int mp3_encode(int fd_in, int fd_out) {
lame_global_flags *gfp;
uint32_t i, j, k, count;
int16_t *b0 = 0, *b1 = 0;
unsigned char *c;
int ret;
/* calculate data size*/
k = (uint32_t) lseek(fd_in, 0, SEEK_CUR);
i = (uint32_t) lseek(fd_in, 0, SEEK_END);
lseek(fd_in, k, SEEK_SET);
i -= k;
k = 0;
gfp = lame_init();
lame_set_errorf(gfp,lame_error_handler);
lame_set_debugf(gfp,lame_error_handler);
lame_set_msgf(gfp,lame_error_handler);
lame_set_num_channels(gfp,2);
lame_set_in_samplerate(gfp,8000);
#if 0
lame_set_brate(gfp,64); /* compress 1:4 */
lame_set_mode(gfp,0); /* mode = stereo */
lame_set_quality(gfp,2); /* 2=high 5 = medium 7=low */
#else
lame_set_quality(gfp,5); /* 2=high 5 = medium 7=low */
lame_set_mode(gfp,3); /* mode = mono */
if(lame_get_VBR(gfp) == vbr_off) lame_set_VBR(gfp, vbr_default);
lame_set_VBR_quality(gfp, 7.0);
lame_set_findReplayGain(gfp, 0);
lame_set_bWriteVbrTag(gfp, 1);
lame_set_out_samplerate(gfp,11025);
/* lame_set_num_samples(gfp,i/2); */
#endif
if(lame_init_params(gfp) < 0) {
log_err("encode: failed to init lame");
return 0;
}
#define CHSZ (512*1024)
#define OCHSZ (5*(CHSZ/8)+7200)
b0 = (int16_t *) malloc(OCHSZ);
b1 = (int16_t *) malloc(CHSZ);
if(!b0 || !b1) {
log_err("encode: out of memory");
if(b0) free(b0);
if(b1) free(b1);
return 0;
}
do {
ret = 0; j = 0; count = 0;
for(c = (unsigned char*) b1; count < CHSZ; c += ret) {
j = (k + RSZ > i) ? i - k : RSZ;
ret = read(fd_in,c,j);
if(ret < 0) break;
k += ret; count += ret;
if(k == i) break;
}
if(ret < 0) break;
if(count) {
ret = lame_encode_buffer(gfp,b1,b1,count/2,(unsigned char *)b0,OCHSZ);
if(ret < 0) break;
c = (unsigned char *) b0;
count = ret;
for(j = 0; j < count; j += RSZ, c += ret) {
ret = (j + RSZ > count) ? count - j : RSZ;
write(fd_out,c,ret);
}
}
} while(k < i);
k = (uint32_t) lame_encode_flush(gfp,(unsigned char *)b0,OCHSZ);
if(k) write(fd_out,b0,k);
k = lame_get_lametag_frame(gfp,(unsigned char *)b0,OCHSZ);
if(k > 0) write(fd_out,b0,k);
lame_close(gfp);
free(b0);
free(b1);
return 1;
}
int
lame_main(lame_t gf, int argc, char **argv)
{
char inPath[PATH_MAX + 1];
char outPath[PATH_MAX + 1];
char nogapdir[PATH_MAX + 1];
/* support for "nogap" encoding of up to 200 .wav files */
#define MAX_NOGAP 200
int nogapout = 0;
int max_nogap = MAX_NOGAP;
char nogap_inPath_[MAX_NOGAP][PATH_MAX + 1];
char *nogap_inPath[MAX_NOGAP];
int ret;
int i;
FILE *outf;
lame_set_msgf(gf, &frontend_msgf);
lame_set_errorf(gf, &frontend_errorf);
lame_set_debugf(gf, &frontend_debugf);
if (argc <= 1) {
usage(stderr, argv[0]); /* no command-line args, print usage, exit */
return 1;
}
memset(inPath, 0, sizeof(inPath));
memset(nogap_inPath_, 0, sizeof(nogap_inPath_));
for (i = 0; i < MAX_NOGAP; ++i) {
nogap_inPath[i] = &nogap_inPath_[i][0];
}
/* parse the command line arguments, setting various flags in the
* struct 'gf'. If you want to parse your own arguments,
* or call libmp3lame from a program which uses a GUI to set arguments,
* skip this call and set the values of interest in the gf struct.
* (see the file API and lame.h for documentation about these parameters)
*/
ret = parse_args(gf, argc, argv, inPath, outPath, nogap_inPath, &max_nogap);
if (ret < 0) {
return ret == -2 ? 0 : 1;
}
if (global_ui_config.update_interval < 0.)
global_ui_config.update_interval = 2.;
if (outPath[0] != '\0' && max_nogap > 0) {
strncpy(nogapdir, outPath, PATH_MAX + 1);
nogapout = 1;
}
/* initialize input file. This also sets samplerate and as much
other data on the input file as available in the headers */
if (max_nogap > 0) {
/* for nogap encoding of multiple input files, it is not possible to
* specify the output file name, only an optional output directory. */
parse_nogap_filenames(nogapout, nogap_inPath[0], outPath, nogapdir);
outf = init_files(gf, nogap_inPath[0], outPath);
}
else {
outf = init_files(gf, inPath, outPath);
}
if (outf == NULL) {
return -1;
}
/* turn off automatic writing of ID3 tag data into mp3 stream
* we have to call it before 'lame_init_params', because that
* function would spit out ID3v2 tag data.
*/
lame_set_write_id3tag_automatic(gf, 0);
/* Now that all the options are set, lame needs to analyze them and
* set some more internal options and check for problems
*/
ret = lame_init_params(gf);
if (ret < 0) {
if (ret == -1) {
display_bitrates(stderr);
}
error_printf("fatal error during initialization\n");
return ret;
}
if (global_ui_config.silent > 0) {
global_ui_config.brhist = 0; /* turn off VBR histogram */
}
if (lame_get_decode_only(gf)) {
/* decode an mp3 file to a .wav */
ret = lame_decoder(gf, outf, inPath, outPath);
}
else if (max_nogap == 0) {
/* encode a single input file */
ret = lame_encoder(gf, outf, 0, inPath, outPath);
}
else {
/* encode multiple input files using nogap option */
for (i = 0; i < max_nogap; ++i) {
int use_flush_nogap = (i != (max_nogap - 1));
if (i > 0) {
parse_nogap_filenames(nogapout, nogap_inPath[i], outPath, nogapdir);
/* note: if init_files changes anything, like
samplerate, num_channels, etc, we are screwed */
outf = init_files(gf, nogap_inPath[i], outPath);
/* reinitialize bitstream for next encoding. this is normally done
* by lame_init_params(), but we cannot call that routine twice */
lame_init_bitstream(gf);
}
lame_set_nogap_total(gf, max_nogap);
lame_set_nogap_currentindex(gf, i);
ret = lame_encoder(gf, outf, use_flush_nogap, nogap_inPath[i], outPath);
}
}
return ret;
}
int
lame_main(lame_t gf, int argc, char **argv)
{
unsigned char mp3buffer[LAME_MAXMP3BUFFER];
char inPath[PATH_MAX + 1];
char outPath[PATH_MAX + 1];
int Buffer[2][1152];
int maxx = 0, tmpx = 0;
int ret;
int wavsamples;
int mp3bytes;
FILE *outf;
char ip[16];
unsigned int port = 5004;
unsigned int ttl = 2;
char dummy;
if (argc <= 2) {
console_printf("Encode (via LAME) to mp3 with RTP streaming of the output\n"
"\n"
" mp3rtp ip[:port[:ttl]] [lame encoding options] infile outfile\n"
"\n"
" examples:\n"
" arecord -b 16 -s 22050 -w | ./mp3rtp 224.17.23.42:5004:2 -b 56 - /dev/null\n"
" arecord -b 16 -s 44100 -w | ./mp3rtp 10.1.1.42 -V2 -b128 -B256 - my_mp3file.mp3\n"
"\n");
return 1;
}
switch (sscanf(argv[1], "%11[.0-9]:%u:%u%c", ip, &port, &ttl, &dummy)) {
case 1:
case 2:
case 3:
break;
default:
error_printf("Illegal destination selector '%s', must be ip[:port[:ttl]]\n", argv[1]);
return -1;
}
rtp_initialization();
if (rtp_socket(ip, port, ttl)) {
rtp_deinitialization();
error_printf("fatal error during initialization\n");
return 1;
}
lame_set_errorf(gf, &frontend_errorf);
lame_set_debugf(gf, &frontend_debugf);
lame_set_msgf(gf, &frontend_msgf);
/* Remove the argumets that are rtp related, and then
* parse the command line arguments, setting various flags in the
* struct pointed to by 'gf'. If you want to parse your own arguments,
* or call libmp3lame from a program which uses a GUI to set arguments,
* skip this call and set the values of interest in the gf struct.
* (see lame.h for documentation about these parameters)
*/
{
int i;
int argc_mod = argc-1; /* leaving out exactly one argument */
char** argv_mod = calloc(argc_mod, sizeof(char*));
argv_mod[0] = argv[0];
for (i = 2; i < argc; ++i) { /* leaving out argument number 1, parsed above */
argv_mod[i-1] = argv[i];
}
parse_args(gf, argc_mod, argv_mod, inPath, outPath, NULL, NULL);
free(argv_mod);
}
/* open the output file. Filename parsed into gf.inPath */
if (0 == strcmp(outPath, "-")) {
lame_set_stream_binary_mode(outf = stdout);
}
else {
if ((outf = lame_fopen(outPath, "wb+")) == NULL) {
rtp_deinitialization();
error_printf("Could not create \"%s\".\n", outPath);
return 1;
}
}
/* open the wav/aiff/raw pcm or mp3 input file. This call will
* open the file with name gf.inFile, try to parse the headers and
* set gf.samplerate, gf.num_channels, gf.num_samples.
* if you want to do your own file input, skip this call and set
* these values yourself.
*/
if (init_infile(gf, inPath) < 0) {
rtp_deinitialization();
fclose(outf);
error_printf("Can't init infile '%s'\n", inPath);
return 1;
}
/* Now that all the options are set, lame needs to analyze them and
* set some more options
*/
ret = lame_init_params(gf);
if (ret < 0) {
if (ret == -1)
display_bitrates(stderr);
rtp_deinitialization();
fclose(outf);
close_infile();
error_printf("fatal error during initialization\n");
return -1;
}
lame_print_config(gf); /* print useful information about options being used */
if (global_ui_config.update_interval < 0.)
global_ui_config.update_interval = 2.;
/* encode until we hit EOF */
while ((wavsamples = get_audio(gf, Buffer)) > 0) { /* read in 'wavsamples' samples */
levelmessage(maxvalue(Buffer), &maxx, &tmpx);
mp3bytes = lame_encode_buffer_int(gf, /* encode the frame */
Buffer[0], Buffer[1], wavsamples,
mp3buffer, sizeof(mp3buffer));
rtp_output(mp3buffer, mp3bytes); /* write MP3 output to RTP port */
fwrite(mp3buffer, 1, mp3bytes, outf); /* write the MP3 output to file */
}
mp3bytes = lame_encode_flush(gf, /* may return one or more mp3 frame */
mp3buffer, sizeof(mp3buffer));
rtp_output(mp3buffer, mp3bytes); /* write MP3 output to RTP port */
fwrite(mp3buffer, 1, mp3bytes, outf); /* write the MP3 output to file */
lame_mp3_tags_fid(gf, outf); /* add VBR tags to mp3 file */
rtp_deinitialization();
fclose(outf);
close_infile(); /* close the sound input file */
return 0;
}
int
main(int argc, char **argv)
{
int ret;
lame_global_flags *gf;
char outPath[PATH_MAX + 1];
char nogapdir[PATH_MAX + 1];
char inPath[PATH_MAX + 1];
/* add variables for encoder delay/padding */
int enc_delay = -1;
int enc_padding = -1;
/* support for "nogap" encoding of up to 200 .wav files */
#define MAX_NOGAP 200
int nogapout = 0;
int max_nogap = MAX_NOGAP;
char nogap_inPath_[MAX_NOGAP][PATH_MAX+1];
char* nogap_inPath[MAX_NOGAP];
int i;
FILE *outf;
#if macintosh
argc = ccommand(&argv);
#endif
#if 0
/* rh 061207
the following fix seems to be a workaround for a problem in the
parent process calling LAME. It would be better to fix the broken
application => code disabled.
*/
#if defined(_WIN32)
/* set affinity back to all CPUs. Fix for EAC/lame on SMP systems from
"Todd Richmond" <*****@*****.**> */
typedef BOOL(WINAPI * SPAMFunc) (HANDLE, DWORD_PTR);
SPAMFunc func;
SYSTEM_INFO si;
if ((func = (SPAMFunc) GetProcAddress(GetModuleHandleW(L"KERNEL32.DLL"),
"SetProcessAffinityMask")) != NULL) {
GetSystemInfo(&si);
func(GetCurrentProcess(), si.dwActiveProcessorMask);
}
#endif
#endif
#ifdef __EMX__
/* This gives wildcard expansion on Non-POSIX shells with OS/2 */
_wildcard(&argc, &argv);
#endif
memset(nogap_inPath_, 0, sizeof(nogap_inPath_));
for (i = 0; i < MAX_NOGAP; ++i) {
nogap_inPath[i] = &nogap_inPath_[i][0];
}
memset(inPath, 0, sizeof(inPath));
frontend_open_console();
/* initialize libmp3lame */
input_format = sf_unknown;
if (NULL == (gf = lame_init())) {
error_printf("fatal error during initialization\n");
frontend_close_console();
return 1;
}
lame_set_errorf(gf, &frontend_errorf);
lame_set_debugf(gf, &frontend_debugf);
lame_set_msgf(gf, &frontend_msgf);
if (argc <= 1) {
usage(stderr, argv[0]); /* no command-line args, print usage, exit */
lame_close(gf);
frontend_close_console();
return 1;
}
/* parse the command line arguments, setting various flags in the
* struct 'gf'. If you want to parse your own arguments,
* or call libmp3lame from a program which uses a GUI to set arguments,
* skip this call and set the values of interest in the gf struct.
* (see the file API and lame.h for documentation about these parameters)
*/
parse_args_from_string(gf, getenv("LAMEOPT"), inPath, outPath);
ret = parse_args(gf, argc, argv, inPath, outPath, nogap_inPath, &max_nogap);
if (ret < 0) {
lame_close(gf);
frontend_close_console();
return ret == -2 ? 0 : 1;
}
if (update_interval < 0.)
update_interval = 2.;
if (outPath[0] != '\0' && max_nogap > 0) {
strncpy(nogapdir, outPath, PATH_MAX + 1);
nogapout = 1;
}
/* initialize input file. This also sets samplerate and as much
other data on the input file as available in the headers */
if (max_nogap > 0) {
/* for nogap encoding of multiple input files, it is not possible to
* specify the output file name, only an optional output directory. */
parse_nogap_filenames(nogapout, nogap_inPath[0], outPath, nogapdir);
outf = init_files(gf, nogap_inPath[0], outPath, &enc_delay, &enc_padding);
}
else {
outf = init_files(gf, inPath, outPath, &enc_delay, &enc_padding);
}
if (outf == NULL) {
lame_close(gf);
frontend_close_console();
return -1;
}
/* turn off automatic writing of ID3 tag data into mp3 stream
* we have to call it before 'lame_init_params', because that
* function would spit out ID3v2 tag data.
*/
lame_set_write_id3tag_automatic(gf, 0);
/* Now that all the options are set, lame needs to analyze them and
* set some more internal options and check for problems
*/
i = lame_init_params(gf);
if (i < 0) {
if (i == -1) {
display_bitrates(stderr);
}
error_printf("fatal error during initialization\n");
lame_close(gf);
frontend_close_console();
return i;
}
if (silent > 0) {
brhist = 0; /* turn off VBR histogram */
}
if (lame_get_decode_only(gf)) {
/* decode an mp3 file to a .wav */
if (mp3_delay_set)
lame_decoder(gf, outf, mp3_delay, inPath, outPath, &enc_delay, &enc_padding);
else
lame_decoder(gf, outf, 0, inPath, outPath, &enc_delay, &enc_padding);
}
else {
if (max_nogap > 0) {
/*
* encode multiple input files using nogap option
*/
for (i = 0; i < max_nogap; ++i) {
int use_flush_nogap = (i != (max_nogap - 1));
if (i > 0) {
parse_nogap_filenames(nogapout, nogap_inPath[i], outPath, nogapdir);
/* note: if init_files changes anything, like
samplerate, num_channels, etc, we are screwed */
outf = init_files(gf, nogap_inPath[i], outPath, &enc_delay, &enc_padding);
/* reinitialize bitstream for next encoding. this is normally done
* by lame_init_params(), but we cannot call that routine twice */
lame_init_bitstream(gf);
}
brhist_init_package(gf);
lame_set_nogap_total(gf, max_nogap);
lame_set_nogap_currentindex(gf, i);
ret = lame_encoder(gf, outf, use_flush_nogap, nogap_inPath[i], outPath);
fclose(outf); /* close the output file */
close_infile(); /* close the input file */
}
}
else {
/*
* encode a single input file
*/
brhist_init_package(gf);
ret = lame_encoder(gf, outf, 0, inPath, outPath);
fclose(outf); /* close the output file */
close_infile(); /* close the input file */
}
}
lame_close(gf);
frontend_close_console();
return ret;
}
void *encode(void *init) {
char file[256];
int fd1 = -1, fd2 = -1, fd_out = -1;
uint32_t i, k;
int16_t *b0 = 0, *b1 = 0, *b2 = 0;
rec_ctx *ctx = (rec_ctx *) init;
#ifdef USING_LAME
lame_global_flags *gfp;
#endif
log_info("in encode thread");
pthread_join(ctx->rec1,0);
pthread_join(ctx->rec2,0);
log_info("recorder threads complete, encoding");
sprintf(file, OUT_DIR "/%s-up",ctx->cur_file);
fd1 = open(file,O_RDONLY);
sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file);
fd2 = open(file,O_RDONLY);
if(fd1 < 0 || fd2 < 0) {
if(fd1 >= 0) {
close(fd1); sprintf(file, OUT_DIR "/%s-up",ctx->cur_file); unlink(file);
}
if(fd2 >= 0) {
close(fd2); sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file); unlink(file);
}
log_err("encode: input file not found");
return 0;
}
#ifdef USING_LAME
if(ctx->ismp3)
sprintf(file, OUT_DIR "/%s.mp3",ctx->cur_file);
else
#endif
sprintf(file, OUT_DIR "/%s.wav",ctx->cur_file);
fd_out = open(file,O_CREAT|O_TRUNC|O_WRONLY);
if(fd_out < 0) {
log_err("encode: cannot open output file %s",file);
close(fd1); sprintf(file, OUT_DIR "/%s-up",ctx->cur_file); unlink(file);
close(fd2); sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file); unlink(file);
return 0;
}
i = (uint32_t) lseek(fd1,0,SEEK_END);
k = (uint32_t) lseek(fd2,0,SEEK_END);
lseek(fd1,0,SEEK_SET);
lseek(fd2,0,SEEK_SET);
if(i != k) {
log_info("file sizes mismatch");
if(i > k) i = k;
}
i &= ~1;
if(i == 0) {
log_err("zero size input file");
close(fd_out); unlink(file);
close(fd1); sprintf(file, OUT_DIR "/%s-up",ctx->cur_file); unlink(file);
close(fd2); sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file); unlink(file);
return 0;
}
#ifdef USING_LAME
if(ctx->ismp3) {
gfp = lame_init();
lame_set_errorf(gfp,lame_error_handler);
lame_set_debugf(gfp,lame_error_handler);
lame_set_msgf(gfp,lame_error_handler);
lame_set_num_channels(gfp,2);
lame_set_in_samplerate(gfp,8000);
lame_set_brate(gfp,64); /* compress 1:4 */
lame_set_mode(gfp,0); /* mode = stereo */
lame_set_quality(gfp,2); /* 2=high 5 = medium 7=low */
if(lame_init_params(gfp) < 0) {
log_err("encode: failed to init lame");
close(fd_out); unlink(file);
close(fd1); sprintf(file, OUT_DIR "/%s-up",ctx->cur_file); unlink(file);
close(fd2); sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file); unlink(file);
return 0;
}
#define CHSZ (512*1024)
#define OCHSZ (5*(CHSZ/8)+7200)
b0 = (int16_t *) malloc(OCHSZ);
b1 = (int16_t *) malloc(CHSZ);
b2 = (int16_t *) malloc(CHSZ);
if(!b0 || !b1 || !b2) {
log_err("encode: out of memory");
if(b0) free(b0);
if(b1) free(b1);
if(b2) free(b2);
close(fd_out); unlink(file);
close(fd1); sprintf(file, OUT_DIR "/%s-up",ctx->cur_file); unlink(file);
close(fd2); sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file); unlink(file);
return 0;
}
k = 0;
do {
int ret = 0;
uint32_t j = 0, count = 0;
unsigned char *c1,*c2;
for(c1 = (unsigned char*) b1, c2 = (unsigned char*) b2; count < CHSZ; c1 += ret, c2 += ret) {
j = (k + RSZ > i) ? i - k : RSZ;
ret = read(fd1,c1,j);
if(ret < 0) break;
ret = read(fd2,c2,j);
if(ret < 0) break;
k += ret; count += ret;
if(k == i) break;
}
if(ret < 0) break;
if(count) {
ret = lame_encode_buffer(gfp,b1,b2,count/2,(unsigned char *)b0,OCHSZ);
if(ret < 0) break;
c1 = (unsigned char *) b0;
count = ret;
for(j = 0; j < count; j += RSZ, c1 += ret) {
ret = (j + RSZ > count) ? count - j : RSZ;
write(fd_out,c1,ret);
}
}
} while(k < i);
i = (uint32_t) lame_encode_flush(gfp,(unsigned char *)b0,OCHSZ);
if(i) write(fd_out,b0,i);
lame_close(gfp);
} else {
#endif
b0 = (int16_t *) malloc(RSZ*2);
b1 = (int16_t *) malloc(RSZ);
b2 = (int16_t *) malloc(RSZ);
if(!b0 || !b1 || !b2) {
log_err("encode: out of memory");
if(b0) free(b0);
if(b1) free(b1);
if(b2) free(b2);
close(fd_out); unlink(file);
close(fd1); sprintf(file, OUT_DIR "/%s-up",ctx->cur_file); unlink(file);
close(fd2); sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file); unlink(file);
return 0;
}
wavhdr.data_sz = i*2;
wavhdr.riff_sz = i*2 + 36;
write(fd_out,&wavhdr,sizeof(wavhdr));
k = 0;
while(1) {
uint32_t j, count = (k + RSZ > i) ? i - k : RSZ;
if(read(fd1,b1,count) < 0) break;
if(read(fd2,b2,count) < 0) break;
for(j = 0; j < count/2; j++) {
b0[2*j] = b1[j]; b0[2*j+1] = b2[j];
}
write(fd_out,b0,count*2);
k += count;
if(k == i) break;
}
#ifdef USING_LAME
}
#endif
close(fd1); close(fd2); close(fd_out);
free(b0); free(b1); free(b2);
log_info("encoding complete");
sprintf(file, OUT_DIR "/%s-up",ctx->cur_file); unlink(file);
sprintf(file, OUT_DIR "/%s-dn",ctx->cur_file); unlink(file);
free(ctx->x);
free(ctx);
return 0;
}
int CEncoderLame::prepare(
const sp<IMediaSource>& pMediaSource_in,
const sp<IAudioSink>& pAudioSink_out,
const sp<AMessage>& pOption_in
)
{
AUTO_LOG();
if (m_pGobalFlags != NULL) {
RETURN(ALREADY_EXISTS);
}
CHECK_PTR_EXT(pMediaSource_in, BAD_VALUE);
CHECK_PTR_EXT(pAudioSink_out, BAD_VALUE);
sp<MetaData> pMeta = pMediaSource_in->getFormat();
CHECK_PTR_EXT(pMeta, BAD_VALUE);
m_pGobalFlags = lame_init();
CHECK_PTR_EXT(m_pGobalFlags, BAD_VALUE);
lame_set_errorf(m_pGobalFlags, CEncoderLame::errorf);
lame_set_debugf(m_pGobalFlags, CEncoderLame::debugf);
lame_set_msgf(m_pGobalFlags, CEncoderLame::msgf);
id3tag_init(m_pGobalFlags);
// TO DO
// pass the user option to encoder
//if (pOption_in != NULL) {
//}
int ret = OK;
bool chk = false;
int32_t iChannelNum = 0;
chk = pMeta->findInt32(kKeyChannelCount, &iChannelNum);
CHECK_IS_EXT((true == chk), UNKNOWN_ERROR);
ret = lame_set_num_channels(m_pGobalFlags, iChannelNum);
CHECK_IS_EXT((ret == OK), ret);
int32_t iSampleRate = 0;
chk = pMeta->findInt32(kKeySampleRate, &iSampleRate);
CHECK_IS_EXT((true == chk), UNKNOWN_ERROR);
ret = lame_set_in_samplerate(m_pGobalFlags, iSampleRate);
CHECK_IS_EXT((ret == OK), ret);
int32_t iBitsPerSample = 0;
chk = pMeta->findInt32(kKeyBitsPerSample, &iBitsPerSample);
CHECK_IS_EXT((true == chk), UNKNOWN_ERROR);
int32_t iDataSize = 0;
chk = pMeta->findInt32(kKeyDataSize, &iDataSize);
CHECK_IS_EXT((true == chk), UNKNOWN_ERROR);
ret = lame_set_num_samples(m_pGobalFlags, iDataSize / (iChannelNum * ((iBitsPerSample + 7) / 8)));
CHECK_IS_EXT((ret == OK), ret);
lame_set_write_id3tag_automatic(m_pGobalFlags, 0);
ret = lame_init_params(m_pGobalFlags);
CHECK_IS_EXT((ret == OK), ret);
size_t id3v2_size = lame_get_id3v2_tag(m_pGobalFlags, 0, 0);
if (id3v2_size > 0) {
unsigned char *id3v2tag = new unsigned char[id3v2_size];
if (id3v2tag != 0) {
int iTagSz = lame_get_id3v2_tag(m_pGobalFlags, id3v2tag, id3v2_size);
int iWrite = (int) pAudioSink_out->write(id3v2tag, iTagSz);
delete(id3v2tag);
CHECK_IS_EXT((iTagSz == iWrite), UNKNOWN_ERROR);
}
}
RETURN(OK);
}
static gint mp3_open(void)
{
int imp3;
gfp = lame_init();
if (gfp == NULL)
return 0;
/* setup id3 data */
id3tag_init(gfp);
if (tuple) {
/* XXX write UTF-8 even though libmp3lame does id3v2.3. --yaz */
lameid3.track_name = tuple_get_str (tuple, FIELD_TITLE, NULL);
id3tag_set_title(gfp, lameid3.track_name);
lameid3.performer = tuple_get_str (tuple, FIELD_ARTIST, NULL);
id3tag_set_artist(gfp, lameid3.performer);
lameid3.album_name = tuple_get_str (tuple, FIELD_ALBUM, NULL);
id3tag_set_album(gfp, lameid3.album_name);
lameid3.genre = tuple_get_str (tuple, FIELD_GENRE, NULL);
id3tag_set_genre(gfp, lameid3.genre);
lameid3.year = str_printf ("%d", tuple_get_int (tuple, FIELD_YEAR, NULL));
id3tag_set_year(gfp, lameid3.year);
lameid3.track_number = str_printf ("%d", tuple_get_int (tuple, FIELD_TRACK_NUMBER, NULL));
id3tag_set_track(gfp, lameid3.track_number);
if (force_v2_val) {
id3tag_add_v2(gfp);
}
if (only_v1_val) {
id3tag_v1_only(gfp);
}
if (only_v2_val) {
id3tag_v2_only(gfp);
}
}
/* input stream description */
lame_set_in_samplerate(gfp, input.frequency);
lame_set_num_channels(gfp, input.channels);
/* Maybe implement this? */
/* lame_set_scale(lame_global_flags *, float); */
lame_set_out_samplerate(gfp, out_samplerate_val);
/* general control parameters */
lame_set_bWriteVbrTag(gfp, toggle_xing_val);
lame_set_quality(gfp, algo_quality_val);
if (audio_mode_val != 4) {
AUDDBG("set mode to %d\n", audio_mode_val);
lame_set_mode(gfp, audio_mode_val);
}
lame_set_errorf(gfp, lame_debugf);
lame_set_debugf(gfp, lame_debugf);
lame_set_msgf(gfp, lame_debugf);
if (enc_toggle_val == 0 && vbr_on == 0)
lame_set_brate(gfp, bitrate_val);
else if (vbr_on == 0)
lame_set_compression_ratio(gfp, compression_val);
/* frame params */
lame_set_copyright(gfp, mark_copyright_val);
lame_set_original(gfp, mark_original_val);
lame_set_error_protection(gfp, error_protect_val);
lame_set_strict_ISO(gfp, enforce_iso_val);
if (vbr_on != 0) {
if (vbr_type == 0)
lame_set_VBR(gfp, 2);
else
lame_set_VBR(gfp, 3);
lame_set_VBR_q(gfp, vbr_quality_val);
lame_set_VBR_mean_bitrate_kbps(gfp, abr_val);
lame_set_VBR_min_bitrate_kbps(gfp, vbr_min_val);
lame_set_VBR_max_bitrate_kbps(gfp, vbr_max_val);
lame_set_VBR_hard_min(gfp, enforce_min_val);
}
/* not to write id3 tag automatically. */
lame_set_write_id3tag_automatic(gfp, 0);
if (lame_init_params(gfp) == -1)
return 0;
/* write id3v2 header */
imp3 = lame_get_id3v2_tag(gfp, encbuffer, sizeof(encbuffer));
if (imp3 > 0) {
write_output(encbuffer, imp3);
id3v2_size = imp3;
}
else {
id3v2_size = 0;
}
write_buffer = NULL;
write_buffer_size = 0;
return 1;
}
bool OutLame::apply_profile() {
if(enc_flags) lame_close(enc_flags);
enc_flags = lame_init();
lame_set_errorf(enc_flags,(void (*)(const char*, va_list))error);
lame_set_debugf(enc_flags,(void (*)(const char*, va_list))func);
lame_set_msgf(enc_flags,(void (*)(const char*, va_list))act);
lame_set_num_samples(enc_flags,OUT_CHUNK);
lame_set_num_channels(enc_flags,2); // the mixed input stream is stereo
lame_set_in_samplerate(enc_flags,SAMPLE_RATE); // the mixed input stream is 44khz
lame_set_error_protection(enc_flags,1); // 2 bytes per frame for a CRC checksum
lame_set_compression_ratio(enc_flags,0);
lame_set_quality(enc_flags,2); // 1..9 1=best 9=worst (suggested: 2, 5, 7)
// lame_set_VBR(enc_flags,vbr_abr);
/* BITRATE */
lame_set_brate(enc_flags,bps());
Shouter *ice = (Shouter*)icelist.begin();
while(ice) {
char tmp[256];
snprintf(tmp,256,"%u",bps()); ice->bps( tmp );
snprintf(tmp,256,"%u",freq()); ice->freq( tmp );
snprintf(tmp,256,"%u",channels()); ice->channels( tmp );
ice = (Shouter*)ice->next;
}
lame_set_out_samplerate(enc_flags,freq());
/* CHANNELS
mode 2 (double channel) is unsupported */
int mode;
switch( channels() ) {
/* 0,1,2,3 stereo,jstereo,dual channel,mono */
case 1: mode = 3; break;
case 2: mode = 1; break;
default: mode = 3; break;
}
lame_set_mode(enc_flags,(MPEG_mode_e)mode);
/* in case of VBR
func("reversed quality is %i, guessed bps %i",(int)fabs( 10 - quality()),bps());
lame_set_VBR_q(enc_flags,(int)fabs( 10 - quality() ));
lame_set_VBR_mean_bitrate_kbps(enc_flags,bps());
*/
/* lame chooses for us frequency filtering when values are 0 */
lame_set_lowpassfreq(enc_flags,lowpass());
lame_set_highpassfreq(enc_flags,highpass());
int res = lame_init_params(enc_flags);
if(res<0) {
error("lame_init_params failed");
lame_close(enc_flags);
enc_flags = NULL;
}
return (res<0)?false:true;
}
