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decoder/sidplay: correctly calculate floating point time

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Internally, use only the integer time.  When needed, convert it to a
floating point seconds value.
This commit is contained in:
Max Kellermann 2009-11-14 00:15:04 +01:00
parent 409a3ed808
commit 873025a495
1 changed files with 11 additions and 8 deletions
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19
src/decoder/sidplay_plugin.cxx
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@ -283,8 +283,10 @@ sidplay_file_decode(struct decoder *decoder, const char *path_fs)
/* .. and play */ /* .. and play */
float data_time=0; unsigned data_time = 0;
int timebase=player.timebase(); const unsigned timebase = player.timebase();
song_len *= timebase;
enum decoder_command cmd; enum decoder_command cmd;
do { do {
char buffer[4096]; char buffer[4096];
@ -295,12 +297,13 @@ sidplay_file_decode(struct decoder *decoder, const char *path_fs)
break; break;
cmd = decoder_data(decoder, NULL, buffer, nbytes, cmd = decoder_data(decoder, NULL, buffer, nbytes,
data_time, 0, NULL); (float)data_time / (float)timebase,
0, NULL);
data_time=player.time()/timebase; data_time = player.time();
if(cmd==DECODE_COMMAND_SEEK) { if(cmd==DECODE_COMMAND_SEEK) {
int target_time=decoder_seek_where(decoder); unsigned target_time = (unsigned)
(decoder_seek_where(decoder) * timebase);
/* can't rewind so return to zero and seek forward */ /* can't rewind so return to zero and seek forward */
if(target_time<data_time) { if(target_time<data_time) {
@ -313,13 +316,13 @@ sidplay_file_decode(struct decoder *decoder, const char *path_fs)
nbytes=player.play(buffer, sizeof(buffer)); nbytes=player.play(buffer, sizeof(buffer));
if(nbytes==0) if(nbytes==0)
break; break;
data_time=player.time()/timebase; data_time = player.time();
} }
decoder_command_finished(decoder); decoder_command_finished(decoder);
} }
if(song_len && data_time>=(float)song_len) if (song_len > 0 && data_time >= song_len)
break; break;
} while (cmd != DECODE_COMMAND_STOP); } while (cmd != DECODE_COMMAND_STOP);