/**
* Convert to 24 bit packed samples (aka S24_3LE / S24_3BE).
*/
static const void *
pcm_convert_24_packed(struct pcm_convert_state *state,
const struct audio_format *src_format,
const void *src_buffer, size_t src_size,
const struct audio_format *dest_format,
size_t *dest_size_r,
GError **error_r)
{
assert(dest_format->format == SAMPLE_FORMAT_S24);
/* use the normal 24 bit conversion first */
struct audio_format audio_format;
audio_format_init(&audio_format, dest_format->sample_rate,
SAMPLE_FORMAT_S24_P32, dest_format->channels);
const int32_t *buffer;
size_t buffer_size;
buffer = pcm_convert_24(state, src_format, src_buffer, src_size,
&audio_format, &buffer_size, error_r);
if (buffer == NULL)
return NULL;
/* now convert to packed 24 bit */
unsigned num_samples = buffer_size / 4;
size_t dest_size = num_samples * 3;
uint8_t *dest = pcm_buffer_get(&state->pack_buffer, dest_size);
pcm_pack_24(dest, buffer, num_samples, dest_format->reverse_endian);
*dest_size_r = dest_size;
return dest;
}
bool
audio_format_parse(struct audio_format *dest, const char *src,
bool mask, GError **error_r)
{
uint32_t rate;
enum sample_format sample_format;
uint8_t channels;
audio_format_clear(dest);
/* parse sample rate */
#if GCC_CHECK_VERSION(4,7)
/* workaround -Wmaybe-uninitialized false positive */
rate = 0;
#endif
if (!parse_sample_rate(src, mask, &rate, &src, error_r))
return false;
if (*src++ != ':') {
g_set_error(error_r, audio_parser_quark(), 0,
"Sample format missing");
return false;
}
/* parse sample format */
#if GCC_CHECK_VERSION(4,7)
/* workaround -Wmaybe-uninitialized false positive */
sample_format = SAMPLE_FORMAT_UNDEFINED;
#endif
if (!parse_sample_format(src, mask, &sample_format, &src, error_r))
return false;
if (*src++ != ':') {
g_set_error(error_r, audio_parser_quark(), 0,
"Channel count missing");
return false;
}
/* parse channel count */
if (!parse_channel_count(src, mask, &channels, &src, error_r))
return false;
if (*src != 0) {
g_set_error(error_r, audio_parser_quark(), 0,
"Extra data after channel count: %s", src);
return false;
}
audio_format_init(dest, rate, sample_format, channels);
assert(mask ? audio_format_mask_valid(dest)
: audio_format_valid(dest));
return true;
}
bool
audio_format_init_checked(struct audio_format *af, unsigned long sample_rate,
enum sample_format sample_format, unsigned channels,
GError **error_r)
{
if (audio_check_sample_rate(sample_rate, error_r) &&
audio_check_sample_format(sample_format, error_r) &&
audio_check_channel_count(channels, error_r)) {
audio_format_init(af, sample_rate, sample_format, channels);
assert(audio_format_valid(af));
return true;
} else
return false;
}
bool
audio_format_parse(struct audio_format *dest, const char *src,
bool mask, GError **error_r)
{
uint32_t rate;
enum sample_format sample_format;
uint8_t channels;
audio_format_clear(dest);
/* parse sample rate */
if (!parse_sample_rate(src, mask, &rate, &src, error_r))
return false;
if (*src++ != ':') {
g_set_error(error_r, audio_parser_quark(), 0,
"Sample format missing");
return false;
}
/* parse sample format */
if (!parse_sample_format(src, mask, &sample_format, &src, error_r))
return false;
if (*src++ != ':') {
g_set_error(error_r, audio_parser_quark(), 0,
"Channel count missing");
return false;
}
/* parse channel count */
if (!parse_channel_count(src, mask, &channels, &src, error_r))
return false;
if (*src != 0) {
g_set_error(error_r, audio_parser_quark(), 0,
"Extra data after channel count: %s", src);
return false;
}
audio_format_init(dest, rate, sample_format, channels);
assert(mask ? audio_format_mask_valid(dest)
: audio_format_valid(dest));
return true;
}
static void
fluidsynth_file_decode(struct decoder *decoder, const char *path_fs)
{
char setting_sample_rate[] = "synth.sample-rate";
/*
char setting_verbose[] = "synth.verbose";
char setting_yes[] = "yes";
*/
fluid_settings_t *settings;
fluid_synth_t *synth;
fluid_player_t *player;
int ret;
enum decoder_command cmd;
/* set up fluid settings */
settings = new_fluid_settings();
if (settings == NULL)
return;
fluid_settings_setnum(settings, setting_sample_rate, sample_rate);
/*
fluid_settings_setstr(settings, setting_verbose, setting_yes);
*/
/* create the fluid synth */
synth = new_fluid_synth(settings);
if (synth == NULL) {
delete_fluid_settings(settings);
return;
}
ret = fluid_synth_sfload(synth, soundfont_path, true);
if (ret < 0) {
g_warning("fluid_synth_sfload() failed");
delete_fluid_synth(synth);
delete_fluid_settings(settings);
return;
}
/* create the fluid player */
player = new_fluid_player(synth);
if (player == NULL) {
delete_fluid_synth(synth);
delete_fluid_settings(settings);
return;
}
ret = fluid_player_add(player, path_fs);
if (ret != 0) {
g_warning("fluid_player_add() failed");
delete_fluid_player(player);
delete_fluid_synth(synth);
delete_fluid_settings(settings);
return;
}
/* start the player */
ret = fluid_player_play(player);
if (ret != 0) {
g_warning("fluid_player_play() failed");
delete_fluid_player(player);
delete_fluid_synth(synth);
delete_fluid_settings(settings);
return;
}
/* initialization complete - announce the audio format to the
MPD core */
struct audio_format audio_format;
audio_format_init(&audio_format, sample_rate, SAMPLE_FORMAT_S16, 2);
decoder_initialized(decoder, &audio_format, false, -1);
while (fluid_player_get_status(player) == FLUID_PLAYER_PLAYING) {
int16_t buffer[2048];
const unsigned max_frames = G_N_ELEMENTS(buffer) / 2;
/* read samples from fluidsynth and send them to the
MPD core */
ret = fluid_synth_write_s16(synth, max_frames,
buffer, 0, 2,
buffer, 1, 2);
if (ret != 0)
break;
cmd = decoder_data(decoder, NULL, buffer, sizeof(buffer),
0);
if (cmd != DECODE_COMMAND_NONE)
break;
}
/* clean up */
fluid_player_stop(player);
fluid_player_join(player);
delete_fluid_player(player);
delete_fluid_synth(synth);
delete_fluid_settings(settings);
}
static void
mod_decode(struct decoder *decoder, struct input_stream *is)
{
ModPlugFile *f;
ModPlug_Settings settings;
GByteArray *bdatas;
struct audio_format audio_format;
int ret;
char audio_buffer[MODPLUG_FRAME_SIZE];
enum decoder_command cmd = DECODE_COMMAND_NONE;
bdatas = mod_loadfile(decoder, is);
if (!bdatas) {
g_warning("could not load stream\n");
return;
}
ModPlug_GetSettings(&settings);
/* alter setting */
settings.mResamplingMode = MODPLUG_RESAMPLE_FIR; /* RESAMP */
settings.mChannels = 2;
settings.mBits = 16;
settings.mFrequency = 44100;
/* insert more setting changes here */
ModPlug_SetSettings(&settings);
f = ModPlug_Load(bdatas->data, bdatas->len);
g_byte_array_free(bdatas, TRUE);
if (!f) {
g_warning("could not decode stream\n");
return;
}
audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
assert(audio_format_valid(&audio_format));
decoder_initialized(decoder, &audio_format,
is->seekable, ModPlug_GetLength(f) / 1000.0);
do {
ret = ModPlug_Read(f, audio_buffer, MODPLUG_FRAME_SIZE);
if (ret <= 0)
break;
cmd = decoder_data(decoder, NULL,
audio_buffer, ret,
0);
if (cmd == DECODE_COMMAND_SEEK) {
float where = decoder_seek_where(decoder);
ModPlug_Seek(f, (int)(where * 1000.0));
decoder_command_finished(decoder);
}
} while (cmd != DECODE_COMMAND_STOP);
ModPlug_Unload(f);
}
int main(int argc, char **argv)
{
GError *error = NULL;
struct audio_format audio_format;
bool ret;
const char *encoder_name;
const struct encoder_plugin *plugin;
struct encoder *encoder;
struct config_param *param;
static char buffer[32768];
ssize_t nbytes;
/* parse command line */
if (argc > 3) {
g_printerr("Usage: run_encoder [ENCODER] [FORMAT] <IN >OUT\n");
return 1;
}
if (argc > 1)
encoder_name = argv[1];
else
encoder_name = "vorbis";
audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
/* create the encoder */
plugin = encoder_plugin_get(encoder_name);
if (plugin == NULL) {
g_printerr("No such encoder: %s\n", encoder_name);
return 1;
}
param = config_new_param(NULL, -1);
config_add_block_param(param, "quality", "5.0", -1);
encoder = encoder_init(plugin, param, &error);
if (encoder == NULL) {
g_printerr("Failed to initialize encoder: %s\n",
error->message);
g_error_free(error);
return 1;
}
/* open the encoder */
if (argc > 2) {
ret = audio_format_parse(&audio_format, argv[2],
false, &error);
if (!ret) {
g_printerr("Failed to parse audio format: %s\n",
error->message);
g_error_free(error);
return 1;
}
}
ret = encoder_open(encoder, &audio_format, &error);
if (encoder == NULL) {
g_printerr("Failed to open encoder: %s\n",
error->message);
g_error_free(error);
return 1;
}
/* do it */
while ((nbytes = read(0, buffer, sizeof(buffer))) > 0) {
ret = encoder_write(encoder, buffer, nbytes, &error);
if (!ret) {
g_printerr("encoder_write() failed: %s\n",
error->message);
g_error_free(error);
return 1;
}
encoder_to_stdout(encoder);
}
ret = encoder_flush(encoder, &error);
if (!ret) {
g_printerr("encoder_flush() failed: %s\n",
error->message);
g_error_free(error);
return 1;
}
encoder_to_stdout(encoder);
}
int main(int argc, char **argv)
{
struct audio_output ao;
struct audio_format audio_format;
struct audio_format_string af_string;
bool success;
GError *error = NULL;
char buffer[4096];
ssize_t nbytes;
size_t frame_size, length = 0, play_length, consumed;
if (argc < 3 || argc > 4) {
g_printerr("Usage: run_output CONFIG NAME [FORMAT] <IN\n");
return 1;
}
audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
g_thread_init(NULL);
/* read configuration file (mpd.conf) */
config_global_init();
success = config_read_file(argv[1], &error);
if (!success) {
g_printerr("%s:", error->message);
g_error_free(error);
return 1;
}
/* initialize the audio output */
if (!load_audio_output(&ao, argv[2]))
return 1;
/* parse the audio format */
if (argc > 3) {
success = audio_format_parse(&audio_format, argv[3],
false, &error);
if (!success) {
g_printerr("Failed to parse audio format: %s\n",
error->message);
g_error_free(error);
return 1;
}
}
/* open the audio output */
success = ao_plugin_open(ao.plugin, ao.data, &audio_format, &error);
if (!success) {
g_printerr("Failed to open audio output: %s\n",
error->message);
g_error_free(error);
return 1;
}
g_printerr("audio_format=%s\n",
audio_format_to_string(&audio_format, &af_string));
frame_size = audio_format_frame_size(&audio_format);
/* play */
while (true) {
if (length < sizeof(buffer)) {
nbytes = read(0, buffer + length, sizeof(buffer) - length);
if (nbytes <= 0)
break;
length += (size_t)nbytes;
}
play_length = (length / frame_size) * frame_size;
if (play_length > 0) {
consumed = ao_plugin_play(ao.plugin, ao.data,
buffer, play_length,
&error);
if (consumed == 0) {
g_printerr("Failed to play: %s\n",
error->message);
g_error_free(error);
return 1;
}
assert(consumed <= length);
assert(consumed % frame_size == 0);
length -= consumed;
memmove(buffer, buffer + consumed, length);
}
}
/* cleanup and exit */
ao_plugin_close(ao.plugin, ao.data);
ao_plugin_finish(ao.plugin, ao.data);
g_mutex_free(ao.mutex);
config_global_finish();
return 0;
}
int main(int argc, char **argv)
{
struct audio_format audio_format;
struct audio_format_string af_string;
bool success;
GError *error = NULL;
struct filter *filter;
const struct audio_format *out_audio_format;
char buffer[4096];
size_t frame_size;
if (argc < 3 || argc > 4) {
g_printerr("Usage: run_filter CONFIG NAME [FORMAT] <IN\n");
return 1;
}
audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
/* initialize GLib */
g_thread_init(NULL);
g_log_set_default_handler(my_log_func, NULL);
/* read configuration file (mpd.conf) */
config_global_init();
success = config_read_file(argv[1], &error);
if (!success) {
g_printerr("%s:", error->message);
g_error_free(error);
return 1;
}
/* parse the audio format */
if (argc > 3) {
success = audio_format_parse(&audio_format, argv[3],
false, &error);
if (!success) {
g_printerr("Failed to parse audio format: %s\n",
error->message);
g_error_free(error);
return 1;
}
}
/* initialize the filter */
filter = load_filter(argv[2]);
if (filter == NULL)
return 1;
/* open the filter */
out_audio_format = filter_open(filter, &audio_format, &error);
if (out_audio_format == NULL) {
g_printerr("Failed to open filter: %s\n", error->message);
g_error_free(error);
filter_free(filter);
return 1;
}
g_printerr("audio_format=%s\n",
audio_format_to_string(out_audio_format, &af_string));
frame_size = audio_format_frame_size(&audio_format);
/* play */
while (true) {
ssize_t nbytes;
size_t length;
const void *dest;
nbytes = read(0, buffer, sizeof(buffer));
if (nbytes <= 0)
break;
dest = filter_filter(filter, buffer, (size_t)nbytes,
&length, &error);
if (dest == NULL) {
g_printerr("Filter failed: %s\n", error->message);
filter_close(filter);
filter_free(filter);
return 1;
}
nbytes = write(1, dest, length);
if (nbytes < 0) {
g_printerr("Failed to write: %s\n", strerror(errno));
filter_close(filter);
filter_free(filter);
return 1;
}
}
/* cleanup and exit */
filter_close(filter);
filter_free(filter);
config_global_finish();
return 0;
}
