/* Play the stream (global decoder_stream) using the given decoder. */
static void play_stream (const struct decoder *f, struct out_buf *out_buf)
{
void *decoder_data;
struct sound_params sound_params = { 0, 0, 0 };
struct decoder_error err;
struct md5_data null_md5;
null_md5.okay = false;
out_buf_reset (out_buf);
assert (f->open_stream != NULL);
decoder_data = f->open_stream (decoder_stream);
f->get_error (decoder_data, &err);
if (err.type != ERROR_OK) {
LOCK (decoder_stream_mut);
decoder_stream = NULL;
UNLOCK (decoder_stream_mut);
f->close (decoder_data);
error ("%s", err.err);
decoder_error_clear (&err);
logit ("Can't open file");
}
else {
audio_state_started_playing ();
bitrate_list_init (&bitrate_list);
decode_loop (f, decoder_data, NULL, out_buf, &sound_params,
&null_md5, 0.0);
}
}
static int wav_decode (void *prv_data, char *buf, int buf_len,
struct sound_params *sound_params)
{
struct wavpack_data *data = (struct wavpack_data *)prv_data;
int ret, i, s_num, iBps, oBps;
int8_t * buf8 = (int8_t *)buf;
int16_t * buf16 = (int16_t *)buf;
int32_t * buf32 = (int32_t *)buf;
iBps = data->channels * WavpackGetBytesPerSample (data->wpc);
oBps = (iBps == 6) ? 8 : iBps;
s_num = buf_len / oBps;
decoder_error_clear (&data->error);
int32_t *dbuf = (int32_t *)xcalloc (
s_num, data->channels * 4);
ret = WavpackUnpackSamples (data->wpc, dbuf, s_num );
if (ret == 0) {
free (dbuf);
return 0;
}
if (data->mode & MODE_FLOAT) {
sound_params->fmt = SFMT_FLOAT;
memcpy (buf, dbuf, ret * oBps);
} else {
debug ("iBps %d", iBps);
switch (iBps / data->channels){
case 4: for (i = 0; i < ret * data->channels; i++)
buf32[i] = dbuf[i];
sound_params->fmt = SFMT_S32 | SFMT_NE;
break;
case 3: for (i = 0; i < ret * data->channels; i++)
buf32[i] = dbuf[i] * 256;
sound_params->fmt = SFMT_S32 | SFMT_NE;
break;
case 2: for (i = 0; i < ret * data->channels; i++)
buf16[i] = dbuf[i];
sound_params->fmt = SFMT_S16 | SFMT_NE;
break;
case 1: for (i = 0; i < ret * data->channels; i++)
buf8[i] = dbuf[i];
sound_params->fmt = SFMT_S8 | SFMT_NE;
}
}
sound_params->channels = data->channels;
sound_params->rate = data->sample_rate;
free (dbuf);
return ret * oBps ;
}
static void aac_close (void *prv_data)
{
struct aac_data *data = (struct aac_data *)prv_data;
NeAACDecClose (data->decoder);
io_close (data->stream);
decoder_error_clear (&data->error);
free (data);
}
static void sndfile_close (void *void_data)
{
struct sndfile_data *data = (struct sndfile_data *)void_data;
if (data->sndfile)
sf_close (data->sndfile);
decoder_error_clear (&data->error);
free (data);
}
static void timidity_close (void *void_data)
{
struct timidity_data *data = (struct timidity_data *)void_data;
if (data->midisong) {
mid_song_free(data->midisong);
}
decoder_error_clear (&data->error);
free (data);
}
static void wav_close (void *prv_data)
{
struct wavpack_data *data = (struct wavpack_data *)prv_data;
if (data->ok) {
WavpackCloseFile (data->wpc);
}
decoder_error_clear (&data->error);
free (data);
logit ("File closed");
}
static void mp3_close (void *void_data)
{
struct mp3_data *data = (struct mp3_data *)void_data;
if (data->ok) {
io_close (data->io_stream);
mad_stream_finish (&data->stream);
mad_frame_finish (&data->frame);
mad_synth_finish (&data->synth);
}
decoder_error_clear (&data->error);
free (data);
}
static void ffmpeg_close (void *prv_data)
{
struct ffmpeg_data *data = (struct ffmpeg_data *)prv_data;
if (data->ok) {
avcodec_close (data->enc);
av_close_input_file (data->ic);
if (data->remain_buf)
free (data->remain_buf);
}
decoder_error_clear (&data->error);
free (data);
}
static void spx_close (void *prv_data)
{
struct spx_data *data = (struct spx_data *)prv_data;
if (data->ok) {
if (data->st)
speex_decoder_destroy (data->st);
if (data->comment_packet)
free (data->comment_packet);
if (data->output)
free (data->output);
speex_bits_destroy (&data->bits);
ogg_stream_clear (&data->os);
ogg_sync_clear (&data->oy);
io_close (data->stream);
}
decoder_error_clear (&data->error);
free (data);
}
static int ffmpeg_decode (void *prv_data, char *buf, int buf_len,
struct sound_params *sound_params)
{
struct ffmpeg_data *data = (struct ffmpeg_data *)prv_data;
int ret;
int data_size;
AVPacket pkt, pkt_tmp;
uint8_t *pkt_data;
int pkt_size = 0;
int filled = 0;
/* The sample buffer should be 16 byte aligned (because SSE), a segmentation
* fault may occur otherwise.
*
* See: avcodec.h in ffmpeg
*/
char avbuf[(AVCODEC_MAX_AUDIO_FRAME_SIZE * 3) / 2] __attribute__((aligned(16)));
decoder_error_clear (&data->error);
sound_params->channels = data->enc->channels;
sound_params->rate = data->enc->sample_rate;
sound_params->fmt = SFMT_S16 | SFMT_NE;
if (data->remain_buf) {
int to_copy = MIN (buf_len, data->remain_buf_len);
debug ("Copying %d bytes from the remain buf", to_copy);
memcpy (buf, data->remain_buf, to_copy);
if (to_copy < data->remain_buf_len) {
memmove (data->remain_buf, data->remain_buf + to_copy,
data->remain_buf_len - to_copy);
data->remain_buf_len -= to_copy;
}
else {
debug ("Remain buf is now empty");
free (data->remain_buf);
data->remain_buf = NULL;
data->remain_buf_len = 0;
}
return to_copy;
}
do {
ret = av_read_frame (data->ic, &pkt);
if (ret < 0)
return 0;
memcpy(&pkt_tmp, &pkt, sizeof(pkt));
pkt_data = pkt.data;
pkt_size = pkt.size;
debug ("Got %dB packet", pkt_size);
while (pkt_size) {
int len;
#if LIBAVCODEC_VERSION_INT >= ((52<<16)+(26<<8)+0)
data_size = sizeof (avbuf);
len = avcodec_decode_audio3 (data->enc, (int16_t *)avbuf,
&data_size, &pkt);
#elif LIBAVCODEC_VERSION_INT >= ((51<<16)+(50<<8)+0)
data_size = sizeof (avbuf);
len = avcodec_decode_audio2 (data->enc, (int16_t *)avbuf,
&data_size, pkt_data, pkt_size);
#else
len = avcodec_decode_audio (data->enc, (int16_t *)avbuf,
&data_size, pkt_data, pkt_size);
#endif
debug ("Decoded %dB", data_size);
if (len < 0) {
/* skip frame */
decoder_error (&data->error, ERROR_STREAM, 0,
"Error in the stream!");
break;
}
pkt_data += len;
pkt_size -= len;
if (buf_len) {
int to_copy = MIN (data_size, buf_len);
memcpy (buf, avbuf, to_copy);
buf += to_copy;
filled += to_copy;
buf_len -= to_copy;
debug ("Copying %dB (%dB filled)", to_copy,
filled);
if (to_copy < data_size)
put_in_remain_buf (data,
avbuf + to_copy,
data_size - to_copy);
}
else if (data_size)
add_to_remain_buf (data, avbuf, data_size);
}
} while (!filled);
/* 2.0 - 16bit/sample*/
data->bitrate = pkt.size * 8 / ((filled + data->remain_buf_len) / 2.0 /
sound_params->channels / sound_params->rate) / 1000;
av_free_packet (&pkt_tmp);
return filled;
}
/* Play a file (disk file) using the given decoder. next_file is precached. */
static void play_file (const char *file, const struct decoder *f,
const char *next_file, struct out_buf *out_buf)
{
void *decoder_data;
struct sound_params sound_params = { 0, 0, 0 };
float already_decoded_time;
struct md5_data md5;
#if !defined(NDEBUG) && defined(DEBUG)
md5.okay = true;
md5.len = 0;
md5_init_ctx (&md5.ctx);
#endif
out_buf_reset (out_buf);
precache_wait (&precache);
if (precache.ok && strcmp(precache.file, file)) {
logit ("The precached file is not the file we want.");
precache.f->close (precache.decoder_data);
precache_reset (&precache);
}
if (precache.ok && !strcmp(precache.file, file)) {
struct decoder_error err;
logit ("Using precached file");
assert (f == precache.f);
sound_params = precache.sound_params;
decoder_data = precache.decoder_data;
set_info_channels (sound_params.channels);
set_info_rate (sound_params.rate / 1000);
if (!audio_open(&sound_params)) {
md5.okay = false;
precache.f->close (precache.decoder_data);
precache_reset (&precache);
return;
}
#if !defined(NDEBUG) && defined(DEBUG)
md5.len += precache.buf_fill;
md5_process_bytes (precache.buf, precache.buf_fill, &md5.ctx);
#endif
audio_send_buf (precache.buf, precache.buf_fill);
precache.f->get_error (precache.decoder_data, &err);
if (err.type != ERROR_OK) {
md5.okay = false;
if (err.type != ERROR_STREAM
|| options_get_int(
"ShowStreamErrors"))
error ("%s", err.err);
decoder_error_clear (&err);
}
already_decoded_time = precache.decoded_time;
if(f->get_avg_bitrate)
set_info_avg_bitrate (f->get_avg_bitrate(decoder_data));
else
set_info_avg_bitrate (0);
bitrate_list_init (&bitrate_list);
bitrate_list.head = precache.bitrate_list.head;
bitrate_list.tail = precache.bitrate_list.tail;
/* don't free list elements when reseting precache */
precache.bitrate_list.head = NULL;
precache.bitrate_list.tail = NULL;
}
else {
struct decoder_error err;
status_msg ("Opening...");
decoder_data = f->open(file);
f->get_error (decoder_data, &err);
if (err.type != ERROR_OK) {
f->close (decoder_data);
status_msg ("");
error ("%s", err.err);
decoder_error_clear (&err);
logit ("Can't open file, exiting");
return;
}
already_decoded_time = 0.0;
if(f->get_avg_bitrate)
set_info_avg_bitrate (f->get_avg_bitrate(decoder_data));
bitrate_list_init (&bitrate_list);
}
audio_plist_set_time (file, f->get_duration(decoder_data));
audio_state_started_playing ();
precache_reset (&precache);
decode_loop (f, decoder_data, next_file, out_buf, &sound_params,
&md5, already_decoded_time);
#if !defined(NDEBUG) && defined(DEBUG)
if (md5.okay) {
uint8_t buf[MD5_DIGEST_SIZE];
md5_finish_ctx (&md5.ctx, buf);
log_md5_sum (file, sound_params, f, buf, md5.len);
}
#endif
}
/* Decoder loop for already opened and probably running for some time decoder.
* next_file will be precached at eof. */
static void decode_loop (const struct decoder *f, void *decoder_data,
const char *next_file, struct out_buf *out_buf,
struct sound_params *sound_params, struct md5_data *md5,
const float already_decoded_sec)
{
bool eof = false;
bool stopped = false;
char buf[PCM_BUF_SIZE];
int decoded = 0;
struct sound_params new_sound_params;
bool sound_params_change = false;
float decode_time = already_decoded_sec; /* the position of the decoder
(in seconds) */
out_buf_set_free_callback (out_buf, buf_free_callback);
LOCK (curr_tags_mut);
curr_tags = tags_new ();
UNLOCK (curr_tags_mut);
if (f->get_stream) {
LOCK (decoder_stream_mut);
decoder_stream = f->get_stream (decoder_data);
UNLOCK (decoder_stream_mut);
}
else
logit ("No get_stream() function");
status_msg ("Playing...");
while (1) {
debug ("loop...");
LOCK (request_cond_mutex);
if (!eof && !decoded) {
struct decoder_error err;
UNLOCK (request_cond_mutex);
if (decoder_stream && out_buf_get_fill(out_buf)
< PREBUFFER_THRESHOLD) {
prebuffering = 1;
io_prebuffer (decoder_stream,
options_get_int("Prebuffering")
* 1024);
prebuffering = 0;
status_msg ("Playing...");
}
decoded = f->decode (decoder_data, buf, sizeof(buf),
&new_sound_params);
if (decoded)
decode_time += decoded / (float)(sfmt_Bps(
new_sound_params.fmt) *
new_sound_params.rate *
new_sound_params.channels);
f->get_error (decoder_data, &err);
if (err.type != ERROR_OK) {
md5->okay = false;
if (err.type != ERROR_STREAM
|| options_get_int(
"ShowStreamErrors"))
error ("%s", err.err);
decoder_error_clear (&err);
}
if (!decoded) {
eof = true;
logit ("EOF from decoder");
}
else {
debug ("decoded %d bytes", decoded);
if (!sound_params_eq(new_sound_params, *sound_params))
sound_params_change = true;
bitrate_list_add (&bitrate_list, decode_time,
f->get_bitrate(decoder_data));
update_tags (f, decoder_data, decoder_stream);
}
}
/* Wait, if there is no space in the buffer to put the decoded
* data or EOF occurred and there is something in the buffer. */
else if (decoded > out_buf_get_free(out_buf)
|| (eof && out_buf_get_fill(out_buf))) {
debug ("waiting...");
if (eof && !precache.file && next_file
&& file_type(next_file) == F_SOUND
&& options_get_int("Precache")
&& options_get_bool("AutoNext"))
start_precache (&precache, next_file);
pthread_cond_wait (&request_cond, &request_cond_mutex);
UNLOCK (request_cond_mutex);
}
else
UNLOCK (request_cond_mutex);
/* When clearing request, we must make sure, that another
* request will not arrive at the moment, so we check if
* the request has changed. */
if (request == REQ_STOP) {
logit ("stop");
stopped = true;
md5->okay = false;
out_buf_stop (out_buf);
LOCK (request_cond_mutex);
if (request == REQ_STOP)
request = REQ_NOTHING;
UNLOCK (request_cond_mutex);
break;
}
else if (request == REQ_SEEK) {
int decoder_seek;
logit ("seeking");
md5->okay = false;
req_seek = MAX(0, req_seek);
if ((decoder_seek = f->seek(decoder_data, req_seek))
== -1)
logit ("error when seeking");
else {
out_buf_stop (out_buf);
out_buf_reset (out_buf);
out_buf_time_set (out_buf, decoder_seek);
bitrate_list_empty (&bitrate_list);
decode_time = decoder_seek;
eof = false;
decoded = 0;
}
LOCK (request_cond_mutex);
if (request == REQ_SEEK)
request = REQ_NOTHING;
UNLOCK (request_cond_mutex);
}
else if (!eof && decoded <= out_buf_get_free(out_buf)
&& !sound_params_change) {
debug ("putting into the buffer %d bytes", decoded);
#if !defined(NDEBUG) && defined(DEBUG)
if (md5->okay) {
md5->len += decoded;
md5_process_bytes (buf, decoded, &md5->ctx);
}
#endif
audio_send_buf (buf, decoded);
decoded = 0;
}
else if (!eof && sound_params_change
&& out_buf_get_fill(out_buf) == 0) {
logit ("Sound parameters have changed.");
*sound_params = new_sound_params;
sound_params_change = false;
set_info_channels (sound_params->channels);
set_info_rate (sound_params->rate / 1000);
out_buf_wait (out_buf);
if (!audio_open(sound_params)) {
md5->okay = false;
break;
}
}
else if (eof && out_buf_get_fill(out_buf) == 0) {
logit ("played everything");
break;
}
}
status_msg ("");
LOCK (decoder_stream_mut);
decoder_stream = NULL;
f->close (decoder_data);
UNLOCK (decoder_stream_mut);
bitrate_list_destroy (&bitrate_list);
LOCK (curr_tags_mut);
if (curr_tags) {
tags_free (curr_tags);
curr_tags = NULL;
}
UNLOCK (curr_tags_mut);
out_buf_wait (out_buf);
if (precache.ok && (stopped || !options_get_bool ("AutoNext"))) {
precache_wait (&precache);
precache.f->close (precache.decoder_data);
precache_reset (&precache);
}
}
static void *precache_thread (void *data)
{
struct precache *precache = (struct precache *)data;
int decoded;
struct sound_params new_sound_params;
struct decoder_error err;
precache->buf_fill = 0;
precache->sound_params.channels = 0; /* mark that sound_params were not
yet filled. */
precache->decoded_time = 0.0;
precache->f = get_decoder (precache->file);
assert (precache->f != NULL);
precache->decoder_data = precache->f->open(precache->file);
precache->f->get_error(precache->decoder_data, &err);
if (err.type != ERROR_OK) {
logit ("Failed to open the file for precache: %s", err.err);
decoder_error_clear (&err);
precache->f->close (precache->decoder_data);
return NULL;
}
audio_plist_set_time (precache->file,
precache->f->get_duration(precache->decoder_data));
/* Stop at PCM_BUF_SIZE, because when we decode too much, there is no
* place where we can put the data that doesn't fit into the buffer. */
while (precache->buf_fill < PCM_BUF_SIZE) {
decoded = precache->f->decode (precache->decoder_data,
precache->buf + precache->buf_fill,
PCM_BUF_SIZE, &new_sound_params);
if (!decoded) {
/* EOF so fast? We can't pass this information
* in precache, so give up. */
logit ("EOF when precaching.");
precache->f->close (precache->decoder_data);
return NULL;
}
precache->f->get_error (precache->decoder_data, &err);
if (err.type == ERROR_FATAL) {
logit ("Error reading file for precache: %s", err.err);
decoder_error_clear (&err);
precache->f->close (precache->decoder_data);
return NULL;
}
if (!precache->sound_params.channels)
precache->sound_params = new_sound_params;
else if (!sound_params_eq(precache->sound_params,
new_sound_params)) {
/* There is no way to store sound with two different
* parameters in the buffer, give up with
* precaching. (this should never happen). */
logit ("Sound parameters have changed when precaching.");
decoder_error_clear (&err);
precache->f->close (precache->decoder_data);
return NULL;
}
bitrate_list_add (&precache->bitrate_list,
precache->decoded_time,
precache->f->get_bitrate(
precache->decoder_data));
precache->buf_fill += decoded;
precache->decoded_time += decoded / (float)(sfmt_Bps(
new_sound_params.fmt) *
new_sound_params.rate *
new_sound_params.channels);
if (err.type != ERROR_OK) {
decoder_error_clear (&err);
break; /* Don't lose the error message */
}
}
precache->ok = 1;
logit ("Successfully precached file (%d bytes)", precache->buf_fill);
return NULL;
}