static bool_t wv_play (InputPlayback * playback, const char * filename,
VFSFile * file, int start_time, int stop_time, bool_t pause)
{
if (file == NULL)
return FALSE;
int32_t *input = NULL;
void *output = NULL;
int sample_rate, num_channels, bits_per_sample;
unsigned num_samples;
WavpackContext *ctx = NULL;
VFSFile *wvc_input = NULL;
bool_t error = FALSE;
if (! wv_attach (filename, file, & wvc_input, & ctx, NULL, OPEN_TAGS |
OPEN_WVC))
{
fprintf (stderr, "Error opening Wavpack file '%s'.", filename);
error = TRUE;
goto error_exit;
}
sample_rate = WavpackGetSampleRate(ctx);
num_channels = WavpackGetNumChannels(ctx);
bits_per_sample = WavpackGetBitsPerSample(ctx);
num_samples = WavpackGetNumSamples(ctx);
if (!playback->output->open_audio(SAMPLE_FMT(bits_per_sample), sample_rate, num_channels))
{
fprintf (stderr, "Error opening audio output.");
error = TRUE;
goto error_exit;
}
if (pause)
playback->output->pause(TRUE);
input = malloc(BUFFER_SIZE * num_channels * sizeof(uint32_t));
output = malloc(BUFFER_SIZE * num_channels * SAMPLE_SIZE(bits_per_sample));
if (input == NULL || output == NULL)
goto error_exit;
playback->set_gain_from_playlist(playback);
pthread_mutex_lock (& mutex);
playback->set_params(playback, (int) WavpackGetAverageBitrate(ctx, num_channels),
sample_rate, num_channels);
seek_value = (start_time > 0) ? start_time : -1;
stop_flag = FALSE;
playback->set_pb_ready(playback);
pthread_mutex_unlock (& mutex);
while (!stop_flag && (stop_time < 0 ||
playback->output->written_time () < stop_time))
{
int ret;
unsigned samples_left;
/* Handle seek and pause requests */
pthread_mutex_lock (& mutex);
if (seek_value >= 0)
{
playback->output->flush (seek_value);
WavpackSeekSample (ctx, (int64_t) seek_value * sample_rate / 1000);
seek_value = -1;
}
pthread_mutex_unlock (& mutex);
/* Decode audio data */
samples_left = num_samples - WavpackGetSampleIndex(ctx);
ret = WavpackUnpackSamples(ctx, input, BUFFER_SIZE);
if (samples_left == 0)
stop_flag = TRUE;
else if (ret < 0)
{
fprintf (stderr, "Error decoding file.\n");
break;
}
else
{
/* Perform audio data conversion and output */
unsigned i;
int32_t *rp = input;
int8_t *wp = output;
int16_t *wp2 = output;
int32_t *wp4 = output;
if (bits_per_sample == 8)
{
for (i = 0; i < ret * num_channels; i++, wp++, rp++)
*wp = *rp & 0xff;
}
else if (bits_per_sample == 16)
{
for (i = 0; i < ret * num_channels; i++, wp2++, rp++)
*wp2 = *rp & 0xffff;
}
else if (bits_per_sample == 24 || bits_per_sample == 32)
{
for (i = 0; i < ret * num_channels; i++, wp4++, rp++)
*wp4 = *rp;
}
playback->output->write_audio(output, ret * num_channels * SAMPLE_SIZE(bits_per_sample));
}
}
error_exit:
free(input);
free(output);
wv_deattach (wvc_input, ctx);
stop_flag = TRUE;
return ! error;
}
static gboolean wv_play (InputPlayback * playback, const gchar * filename,
VFSFile * file, gint start_time, gint stop_time, gboolean pause)
{
if (file == NULL)
return FALSE;
gint32 *input = NULL;
void *output = NULL;
gint sample_rate, num_channels, bits_per_sample;
guint num_samples;
WavpackContext *ctx = NULL;
VFSFile *wvc_input = NULL;
gboolean error = FALSE;
if (! wv_attach (filename, file, & wvc_input, & ctx, NULL, OPEN_TAGS |
OPEN_WVC))
{
g_warning("Error opening Wavpack file '%s'.", filename);
error = TRUE;
goto error_exit;
}
sample_rate = WavpackGetSampleRate(ctx);
num_channels = WavpackGetNumChannels(ctx);
bits_per_sample = WavpackGetBitsPerSample(ctx);
num_samples = WavpackGetNumSamples(ctx);
if (!playback->output->open_audio(SAMPLE_FMT(bits_per_sample), sample_rate, num_channels))
{
g_warning("Error opening audio output.");
error = TRUE;
goto error_exit;
}
if (pause)
playback->output->pause(TRUE);
input = g_malloc(BUFFER_SIZE * num_channels * sizeof(guint32));
output = g_malloc(BUFFER_SIZE * num_channels * SAMPLE_SIZE(bits_per_sample));
if (input == NULL || output == NULL)
goto error_exit;
playback->set_gain_from_playlist(playback);
g_mutex_lock(ctrl_mutex);
playback->set_params(playback, (gint) WavpackGetAverageBitrate(ctx, num_channels),
sample_rate, num_channels);
seek_value = (start_time > 0) ? start_time : -1;
stop_flag = FALSE;
playback->set_pb_ready(playback);
g_mutex_unlock(ctrl_mutex);
while (!stop_flag && (stop_time < 0 ||
playback->output->written_time () < stop_time))
{
gint ret;
guint samples_left;
/* Handle seek and pause requests */
g_mutex_lock(ctrl_mutex);
if (seek_value >= 0)
{
playback->output->flush (seek_value);
WavpackSeekSample (ctx, (gint64) seek_value * sample_rate / 1000);
seek_value = -1;
g_cond_signal(ctrl_cond);
}
g_mutex_unlock(ctrl_mutex);
/* Decode audio data */
samples_left = num_samples - WavpackGetSampleIndex(ctx);
ret = WavpackUnpackSamples(ctx, input, BUFFER_SIZE);
if (samples_left == 0)
stop_flag = TRUE;
else if (ret < 0)
{
g_warning("Error decoding file.\n");
break;
}
else
{
/* Perform audio data conversion and output */
guint i;
gint32 *rp = input;
gint8 *wp = output;
gint16 *wp2 = output;
gint32 *wp4 = output;
if (bits_per_sample == 8)
{
for (i = 0; i < ret * num_channels; i++, wp++, rp++)
*wp = *rp & 0xff;
}
else if (bits_per_sample == 16)
{
for (i = 0; i < ret * num_channels; i++, wp2++, rp++)
*wp2 = *rp & 0xffff;
}
else if (bits_per_sample == 24 || bits_per_sample == 32)
{
for (i = 0; i < ret * num_channels; i++, wp4++, rp++)
*wp4 = *rp;
}
playback->output->write_audio(output, ret * num_channels * SAMPLE_SIZE(bits_per_sample));
}
}
/* Flush buffer */
g_mutex_lock(ctrl_mutex);
while (!stop_flag && playback->output->buffer_playing())
g_usleep(20000);
g_cond_signal(ctrl_cond);
g_mutex_unlock(ctrl_mutex);
error_exit:
g_free(input);
g_free(output);
wv_deattach (wvc_input, ctx);
stop_flag = TRUE;
playback->output->close_audio();
return ! error;
}
