unsigned channels;
unsigned sample_rate;
unsigned length_in_msec;
+ gchar *title;
AFormat sample_format;
int seek_to_in_sec;
FLAC__bool has_replaygain;
static FLAC__int32 reservoir_[FLAC__MAX_BLOCK_SIZE * 2/*for overflow*/ * FLAC_PLUGIN__MAX_SUPPORTED_CHANNELS];
static FLAC__byte sample_buffer_[SAMPLES_PER_WRITE * FLAC_PLUGIN__MAX_SUPPORTED_CHANNELS * (24/8)]; /* (24/8) for max bytes per sample */
static unsigned wide_samples_in_reservoir_ = 0;
+
static FLAC__FileDecoder *decoder_ = 0;
static file_info_struct file_info_;
static pthread_t decode_thread_;
static FLAC__bool audio_error_ = false;
+#define BITRATE_HIST_SEGMENT_MSEC 500
+/* 500ms * 50 = 25s should be enough */
+#define BITRATE_HIST_SIZE 50
+static unsigned bitrate_history_[BITRATE_HIST_SIZE];
+
+
InputPlugin *get_iplugin_info()
{
flac_ip.description = g_strdup_printf("Reference FLAC Player v%s", FLAC__VERSION_STRING);
void FLAC_XMMS__play_file(char *filename)
{
FILE *f;
- gchar *ret;
wide_samples_in_reservoir_ = 0;
audio_error_ = false;
return;
}
- ret = flac_format_song_title(filename);
- flac_ip.set_info(ret, file_info_.length_in_msec, file_info_.sample_rate * file_info_.channels * file_info_.bits_per_sample, file_info_.sample_rate, file_info_.channels);
-
- g_free(ret);
+ file_info_.title = flac_format_song_title(filename);
+ flac_ip.set_info(file_info_.title, file_info_.length_in_msec, file_info_.sample_rate * file_info_.channels * file_info_.bits_per_sample, file_info_.sample_rate, file_info_.channels);
file_info_.seek_to_in_sec = -1;
file_info_.play_thread_open = true;
void *play_loop_(void *arg)
{
+ unsigned written_time_last = 0, bh_index_last_w = 0, bh_index_last_o = BITRATE_HIST_SIZE;
+ FLAC__uint64 decode_position_last = 0;
+
(void)arg;
while(file_info_.is_playing) {
const unsigned n = min(wide_samples_in_reservoir_, SAMPLES_PER_WRITE);
const unsigned delta = n * channels;
int bytes;
- unsigned i;
+ unsigned i, written_time, bh_index_w;
+ FLAC__uint64 decode_position;
if(flac_cfg.output.replaygain.enable && file_info_.has_replaygain) {
bytes = (int)FLAC__plugin_common__apply_gain(
xmms_usleep(10000);
if(file_info_.is_playing && file_info_.seek_to_in_sec == -1)
flac_ip.output->write_audio(sample_buffer_, bytes);
+
+ /* compute current bitrate */
+
+ written_time = flac_ip.output->written_time();
+ bh_index_w = written_time / BITRATE_HIST_SEGMENT_MSEC % BITRATE_HIST_SIZE ;
+ if(bh_index_w != bh_index_last_w && wide_samples_in_reservoir_ < SAMPLES_PER_WRITE) {
+ bh_index_last_w = bh_index_w;
+ if(!FLAC__file_decoder_get_decode_position(decoder_, &decode_position))
+ decode_position = 0;
+
+ bitrate_history_[(bh_index_w + BITRATE_HIST_SIZE - 1) % BITRATE_HIST_SIZE] =
+ decode_position > decode_position_last && written_time > written_time_last ?
+ 8000 * (decode_position - decode_position_last) / (written_time - written_time_last) :
+ file_info_.sample_rate * file_info_.channels * file_info_.bits_per_sample;
+ decode_position_last = decode_position;
+ written_time_last = written_time;
+ }
}
else {
file_info_.eof = true;
unsigned target_sample = (unsigned)(distance * (double)file_info_.total_samples);
if(FLAC__file_decoder_seek_absolute(decoder_, (FLAC__uint64)target_sample)) {
flac_ip.output->flush(file_info_.seek_to_in_sec * 1000);
+ bh_index_last_w = bh_index_last_o = file_info_.seek_to_in_sec * 1000 / BITRATE_HIST_SEGMENT_MSEC % BITRATE_HIST_SIZE;
file_info_.seek_to_in_sec = -1;
file_info_.eof = false;
wide_samples_in_reservoir_ = 0;
}
}
+ else {
+ /* display the right bitrate from history */
+ unsigned bh_index_o = flac_ip.output->output_time() / BITRATE_HIST_SEGMENT_MSEC % BITRATE_HIST_SIZE;
+ if(bh_index_o != bh_index_last_o && bh_index_last_w != bh_index_o) {
+ bh_index_last_o = bh_index_o;
+ flac_ip.set_info(file_info_.title, file_info_.length_in_msec, bitrate_history_[bh_index_o], file_info_.sample_rate, file_info_.channels);
+ }
+ }
}
safe_decoder_finish_(decoder_);
flac_ip.output->buffer_free();
flac_ip.output->buffer_free();
+ g_free(file_info_.title);
+
pthread_exit(NULL);
return 0; /* to silence the compiler warning about not returning a value */
}