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simplify decoder finishing; make thread synchronization more safe

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This commit is contained in:
Josh Coalson
2001-12-04 01:27:32 +00:00
parent d16712d14a
commit 2ecfd027f9
1 changed files with 27 additions and 20 deletions
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47
src/plugin_xmms/plugin.c
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@@ -47,6 +47,7 @@ typedef struct {
FLAC__bool abort_flag;
FLAC__bool is_playing;
FLAC__bool eof;
FLAC__bool play_thread_open; /* if true, is_playing must also be true */
unsigned total_samples;
unsigned bits_per_sample;
unsigned channels;
@@ -105,8 +106,8 @@ InputPlugin flac_ip =
#define SAMPLES_PER_WRITE 512
static FLAC__byte reservoir_[FLAC__MAX_BLOCK_SIZE * 2 * 2 * 2]; /* *2 for max bytes-per-sample, *2 for max channels, another *2 for overflow */
static FLAC__byte output_[FLAC__MAX_BLOCK_SIZE * 2 * 2]; /* *2 for max bytes-per-sample, *2 for max channels */
static unsigned reservoir_samples_;
static FLAC__FileDecoder *decoder_;
static unsigned reservoir_samples_ = 0;
static FLAC__FileDecoder *decoder_ = 0;
static file_info_struct file_info_;
static pthread_t decode_thread_;
static FLAC__bool audio_error_ = false;
@@ -127,8 +128,8 @@ int FLAC_XMMS__is_our_file(char *filename)
char *ext;
ext = strrchr(filename, '.');
if (ext)
if (!strcasecmp(ext, ".flac") || !strcasecmp(ext, ".fla"))
if(ext)
if(!strcasecmp(ext, ".flac") || !strcasecmp(ext, ".fla"))
return 1;
return 0;
}
@@ -138,6 +139,13 @@ void FLAC_XMMS__play_file(char *filename)
FILE *f;
id3v1_struct tag;
reservoir_samples_ = 0;
audio_error_ = false;
file_info_.abort_flag = false;
file_info_.is_playing = false;
file_info_.eof = false;
file_info_.play_thread_open = false;
if(0 == (f = fopen(filename, "r")))
return;
fclose(f);
@@ -145,14 +153,11 @@ void FLAC_XMMS__play_file(char *filename)
if(!decoder_init_(filename))
return;
reservoir_samples_ = 0;
audio_error_ = false;
file_info_.is_playing = true;
file_info_.eof = false;
if (flac_ip.output->open_audio(file_info_.sample_format, file_info_.sample_rate, file_info_.channels) == 0) {
if(flac_ip.output->open_audio(file_info_.sample_format, file_info_.sample_rate, file_info_.channels) == 0) {
audio_error_ = true;
if(decoder_ && FLAC__file_decoder_get_state(decoder_) != FLAC__FILE_DECODER_UNINITIALIZED)
if(decoder_)
FLAC__file_decoder_finish(decoder_);
return;
}
@@ -161,6 +166,7 @@ void FLAC_XMMS__play_file(char *filename)
flac_ip.set_info(tag.description, 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;
pthread_create(&decode_thread_, NULL, play_loop_, NULL);
}
@@ -168,9 +174,12 @@ void FLAC_XMMS__stop()
{
if(file_info_.is_playing) {
file_info_.is_playing = false;
pthread_join(decode_thread_, NULL);
if(file_info_.play_thread_open) {
file_info_.play_thread_open = false;
pthread_join(decode_thread_, NULL);
}
flac_ip.output->close_audio();
if(decoder_ && FLAC__file_decoder_get_state(decoder_) != FLAC__FILE_DECODER_UNINITIALIZED)
if(decoder_)
FLAC__file_decoder_finish(decoder_);
}
}
@@ -201,8 +210,10 @@ int FLAC_XMMS__get_time()
void FLAC_XMMS__cleanup()
{
if(decoder_)
if(decoder_) {
FLAC__file_decoder_delete(decoder_);
decoder_ = 0;
}
}
void FLAC_XMMS__get_song_info(char *filename, char **title, int *length_in_msec)
@@ -239,8 +250,7 @@ void FLAC_XMMS__get_song_info(char *filename, char **title, int *length_in_msec)
*length_in_msec = (int)tmp_file_info.length_in_msec;
if(FLAC__file_decoder_get_state(tmp_decoder) != FLAC__FILE_DECODER_UNINITIALIZED)
FLAC__file_decoder_finish(tmp_decoder);
FLAC__file_decoder_finish(tmp_decoder);
FLAC__file_decoder_delete(tmp_decoder);
}
}
@@ -297,7 +307,6 @@ FLAC__bool get_id3v1_tag_(const char *filename, id3v1_struct *tag)
void *play_loop_(void *arg)
{
(void)arg;
while(file_info_.is_playing) {
@@ -336,7 +345,7 @@ void *play_loop_(void *arg)
}
else
xmms_usleep(10000);
if (file_info_.seek_to_in_sec != -1) {
if(file_info_.seek_to_in_sec != -1) {
const double distance = (double)file_info_.seek_to_in_sec * 1000.0 / (double)file_info_.length_in_msec;
unsigned target_sample = (unsigned)(distance * (double)file_info_.total_samples);
if(FLAC__file_decoder_seek_absolute(decoder_, (FLAC__uint64)target_sample)) {
@@ -346,9 +355,9 @@ void *play_loop_(void *arg)
reservoir_samples_ = 0;
}
}
}
if(decoder_ && FLAC__file_decoder_get_state(decoder_) != FLAC__FILE_DECODER_UNINITIALIZED)
if(decoder_)
FLAC__file_decoder_finish(decoder_);
/* are these two calls necessary? */
@@ -373,8 +382,6 @@ FLAC__bool decoder_init_(const char *filename)
if(FLAC__file_decoder_init(decoder_) != FLAC__FILE_DECODER_OK)
return false;
file_info_.abort_flag = false;
if(!FLAC__file_decoder_process_metadata(decoder_))
return false;