EmErrorCode WvDecoder::SetUnitIndex(uint64_t index)
{
if (index < m_UnitCount && WavpackSeekSample(m_Ctx, index*m_Channels) == 0) {
m_UnitIndex = index;
return ErrorCode::Ok;
} else {
return ErrorCode::DecoderOutOfRange;
}
}
SINT SoundSourceWV::seekSampleFrame(SINT frameIndex) {
DEBUG_ASSERT(isValidFrameIndex(frameIndex));
if (WavpackSeekSample(m_wpc, frameIndex) == true) {
return frameIndex;
} else {
qDebug() << "SSWV::seek : could not seek to frame #" << frameIndex;
return WavpackGetSampleIndex(m_wpc);
}
}
static int
wv_seek_sample (DB_fileinfo_t *_info, int sample) {
#ifndef TINYWV
wvctx_t *info = (wvctx_t *)_info;
WavpackSeekSample (info->ctx, sample + info->startsample);
_info->readpos = (float)(WavpackGetSampleIndex (info->ctx) - info->startsample) / WavpackGetSampleRate (info->ctx);
#endif
return 0;
}
SInt64 WavPackDecoder::SeekToFrame(SInt64 frame)
{
if(!IsOpen() || 0 > frame || frame >= GetTotalFrames())
return -1;
int result = WavpackSeekSample(mWPC, static_cast<uint32_t>(frame));
if(result)
mCurrentFrame = frame;
return (result ? mCurrentFrame : -1);
}
static int wav_seek (void *prv_data, int sec)
{
struct wavpack_data *data = (struct wavpack_data *)prv_data;
assert (sec >= 0);
if ( WavpackSeekSample (data->wpc, sec * data->sample_rate) )
return sec;
decoder_error (&data->error, ERROR_FATAL, 0,
"Fatal seeking error!");
return -1;
}
ReadableSampleFrames SoundSourceWV::readSampleFramesClamped(
WritableSampleFrames writableSampleFrames) {
const SINT firstFrameIndex = writableSampleFrames.frameIndexRange().start();
if (m_curFrameIndex != firstFrameIndex) {
if (WavpackSeekSample(m_wpc, firstFrameIndex)) {
m_curFrameIndex = firstFrameIndex;
} else {
kLogger.warning()
<< "Could not seek to first frame index"
<< firstFrameIndex;
m_curFrameIndex = WavpackGetSampleIndex(m_wpc);
return ReadableSampleFrames(IndexRange::between(m_curFrameIndex, m_curFrameIndex));
}
}
DEBUG_ASSERT(m_curFrameIndex == firstFrameIndex);
const SINT numberOfFramesTotal = writableSampleFrames.frameLength();
static_assert(sizeof(CSAMPLE) == sizeof(int32_t),
"CSAMPLE and int32_t must have the same size");
CSAMPLE* pOutputBuffer = writableSampleFrames.writableData();
SINT unpackCount = WavpackUnpackSamples(m_wpc,
reinterpret_cast<int32_t*>(pOutputBuffer), numberOfFramesTotal);
DEBUG_ASSERT(unpackCount >= 0);
DEBUG_ASSERT(unpackCount <= numberOfFramesTotal);
if (!(WavpackGetMode(m_wpc) & MODE_FLOAT)) {
// signed integer -> float
const SINT sampleCount = frames2samples(unpackCount);
for (SINT i = 0; i < sampleCount; ++i) {
const int32_t sampleValue =
*reinterpret_cast<int32_t*>(pOutputBuffer);
*pOutputBuffer++ = CSAMPLE(sampleValue) * m_sampleScaleFactor;
}
}
const auto resultRange = IndexRange::forward(m_curFrameIndex, unpackCount);
m_curFrameIndex += unpackCount;
return ReadableSampleFrames(
resultRange,
SampleBuffer::ReadableSlice(
writableSampleFrames.writableData(),
frames2samples(unpackCount)));
}
SINT SoundSourceWV::seekSampleFrame(SINT frameIndex) {
DEBUG_ASSERT(isValidFrameIndex(m_curFrameIndex));
if (frameIndex >= getMaxFrameIndex()) {
// EOF reached
m_curFrameIndex = getMaxFrameIndex();
return m_curFrameIndex;
}
if (frameIndex == m_curFrameIndex) {
return m_curFrameIndex;
}
if (WavpackSeekSample(m_wpc, frameIndex) == true) {
m_curFrameIndex = frameIndex;
return frameIndex;
} else {
kLogger.debug() << "could not seek to frame #" << frameIndex;
return WavpackGetSampleIndex(m_wpc);
}
}
static gint64
xmms_wavpack_seek (xmms_xform_t *xform, gint64 samples,
xmms_xform_seek_mode_t whence, xmms_error_t *error)
{
xmms_wavpack_data_t *data;
gint ret;
g_return_val_if_fail (xform, -1);
g_return_val_if_fail (samples >= 0, -1);
g_return_val_if_fail (whence == XMMS_XFORM_SEEK_SET, -1);
data = xmms_xform_private_data_get (xform);
g_return_val_if_fail (data, -1);
ret = WavpackSeekSample (data->ctx, (uint32_t)samples);
if (ret) {
/* success */
return samples;
} else {
return -1;
}
}
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 void *
DecodeThread(void *a)
{
ape_tag tag;
char *filename = (char *) a;
int bps_updateCounter = 0;
int bps;
int i;
WavpackDecoder d(&mod);
if (!d.attach(filename)) {
printf("wavpack: Error opening file: \"%s\"\n", filename);
killDecodeThread = true;
return end_thread();
}
bps = WavpackGetBytesPerSample(d.ctx) * d.num_channels;
DBG("reading %s at %d rate with %d channels\n", filename, d.sample_rate, d.num_channels);
if (!d.open_audio()) {
DBG("error opening xmms audio channel\n");
killDecodeThread = true;
AudioError = true;
openedAudio = false;
}
else {
DBG("opened xmms audio channel\n");
openedAudio = true;
}
unsigned status;
char *display = generate_title(filename, d.ctx);
int length = (int) (1000 * WavpackGetNumSamples(d.ctx));
while (!killDecodeThread) {
if (isSeek != -1) {
DBG("seeking to position %d\n", isSeek);
WavpackSeekSample(d.ctx, isSeek * d.sample_rate);
isSeek = -1;
}
if (paused == 0
&& (mod.output->buffer_free() >=
(1152 * 2 *
(16 / 8)) << (mod.output->buffer_playing()? 1 : 0))) {
status =
WavpackUnpackSamples(d.ctx, d.input, BUFFER_SIZE);
if (status == (unsigned) (-1)) {
printf("wavpack: Error decoding file.\n");
break;
}
else if (status == 0) {
killDecodeThread = true;
break;
}
else {
d.process_buffer(status);
}
}
else {
xmms_usleep(10000);
}
}
return end_thread();
}
/*
* This does the main decoding thing.
* Requires an already opened WavpackContext.
*/
static void
wavpack_decode(struct decoder *decoder, WavpackContext *wpc, bool can_seek,
struct replay_gain_info *replay_gain_info)
{
struct audio_format audio_format;
format_samples_t format_samples;
char chunk[CHUNK_SIZE];
int samples_requested, samples_got;
float total_time, current_time;
int bytes_per_sample, output_sample_size;
int position;
audio_format.sample_rate = WavpackGetSampleRate(wpc);
audio_format.channels = WavpackGetReducedChannels(wpc);
audio_format.bits = WavpackGetBitsPerSample(wpc);
/* round bitwidth to 8-bit units */
audio_format.bits = (audio_format.bits + 7) & (~7);
/* mpd handles max 24-bit samples */
if (audio_format.bits > 24) {
audio_format.bits = 24;
}
if (!audio_format_valid(&audio_format)) {
g_warning("Invalid audio format: %u:%u:%u\n",
audio_format.sample_rate,
audio_format.bits,
audio_format.channels);
return;
}
if ((WavpackGetMode(wpc) & MODE_FLOAT) == MODE_FLOAT) {
format_samples = format_samples_float;
} else {
format_samples = format_samples_int;
}
total_time = WavpackGetNumSamples(wpc);
total_time /= audio_format.sample_rate;
bytes_per_sample = WavpackGetBytesPerSample(wpc);
output_sample_size = audio_format_frame_size(&audio_format);
/* wavpack gives us all kind of samples in a 32-bit space */
samples_requested = sizeof(chunk) / (4 * audio_format.channels);
decoder_initialized(decoder, &audio_format, can_seek, total_time);
position = 0;
do {
if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK) {
if (can_seek) {
int where;
where = decoder_seek_where(decoder);
where *= audio_format.sample_rate;
if (WavpackSeekSample(wpc, where)) {
position = where;
decoder_command_finished(decoder);
} else {
decoder_seek_error(decoder);
}
} else {
decoder_seek_error(decoder);
}
}
if (decoder_get_command(decoder) == DECODE_COMMAND_STOP) {
break;
}
samples_got = WavpackUnpackSamples(
wpc, (int32_t *)chunk, samples_requested
);
if (samples_got > 0) {
int bitrate = (int)(WavpackGetInstantBitrate(wpc) /
1000 + 0.5);
position += samples_got;
current_time = position;
current_time /= audio_format.sample_rate;
format_samples(
bytes_per_sample, chunk,
samples_got * audio_format.channels
);
decoder_data(
decoder, NULL, chunk,
samples_got * output_sample_size,
current_time, bitrate,
replay_gain_info
);
}
} while (samples_got > 0);
}
/*
* This does the main decoding thing.
* Requires an already opened WavpackContext.
*/
static void
wavpack_decode(struct decoder *decoder, WavpackContext *wpc, bool can_seek)
{
GError *error = NULL;
bool is_float;
enum sample_format sample_format;
struct audio_format audio_format;
format_samples_t format_samples;
float total_time;
int bytes_per_sample, output_sample_size;
is_float = (WavpackGetMode(wpc) & MODE_FLOAT) != 0;
sample_format =
wavpack_bits_to_sample_format(is_float,
WavpackGetBytesPerSample(wpc));
if (!audio_format_init_checked(&audio_format,
WavpackGetSampleRate(wpc),
sample_format,
WavpackGetNumChannels(wpc), &error)) {
g_warning("%s", error->message);
g_error_free(error);
return;
}
if (is_float) {
format_samples = format_samples_float;
} else {
format_samples = format_samples_int;
}
total_time = WavpackGetNumSamples(wpc);
total_time /= audio_format.sample_rate;
bytes_per_sample = WavpackGetBytesPerSample(wpc);
output_sample_size = audio_format_frame_size(&audio_format);
/* wavpack gives us all kind of samples in a 32-bit space */
int32_t chunk[1024];
const uint32_t samples_requested = G_N_ELEMENTS(chunk) /
audio_format.channels;
decoder_initialized(decoder, &audio_format, can_seek, total_time);
enum decoder_command cmd = decoder_get_command(decoder);
while (cmd != DECODE_COMMAND_STOP) {
if (cmd == DECODE_COMMAND_SEEK) {
if (can_seek) {
unsigned where = decoder_seek_where(decoder) *
audio_format.sample_rate;
if (WavpackSeekSample(wpc, where)) {
decoder_command_finished(decoder);
} else {
decoder_seek_error(decoder);
}
} else {
decoder_seek_error(decoder);
}
}
uint32_t samples_got = WavpackUnpackSamples(wpc, chunk,
samples_requested);
if (samples_got == 0)
break;
int bitrate = (int)(WavpackGetInstantBitrate(wpc) / 1000 +
0.5);
format_samples(bytes_per_sample, chunk,
samples_got * audio_format.channels);
cmd = decoder_data(decoder, NULL, chunk,
samples_got * output_sample_size,
bitrate);
}
}
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;
}
