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sound, fix mcd cdda (mono, resampling), type cleanup, remove minimp3

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This commit is contained in:
kub 2022-02-08 20:49:43 +00:00
parent 9f1d5acdb4
commit f7741cac91
14 changed files with 193 additions and 89 deletions
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30
platform/psp/mp3.c
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@ -386,16 +386,14 @@ void mp3_start_play(void *f, int pos)
}
void mp3_update(int *buffer, int length, int stereo)
void mp3_update(s32 *buffer, int length, int stereo)
{
int length_mp3;
// playback was started, track not ended
if (mp3_handle < 0 || mp3_src_pos >= mp3_src_size) return;
length_mp3 = length;
if (PicoIn.sndRate == 22050) length_mp3 <<= 1; // mp3s are locked to 44100Hz stereo
else if (PicoIn.sndRate == 11025) length_mp3 <<= 2; // so make length 44100ish
length_mp3 = length * Pico.snd.cdda_mult >> 16;
/* do we have to wait? */
if (mp3_job_started && mp3_samples_ready < length_mp3)
@ -409,30 +407,30 @@ void mp3_update(int *buffer, int length, int stereo)
/* mix mp3 data, only stereo */
if (mp3_samples_ready >= length_mp3)
{
int shr = 0;
void (*mix_samples)(int *dest_buf, short *mp3_buf, int count) = mix_16h_to_32;
if (PicoIn.sndRate == 22050) { mix_samples = mix_16h_to_32_s1; shr = 1; }
else if (PicoIn.sndRate == 11025) { mix_samples = mix_16h_to_32_s2; shr = 2; }
void (*mix_samples)(s32 *dest_buf, s16 *mp3_buf, int count, int fac16) = mix_16h_to_32_resample_stereo;
if (!stereo)
mix_samples = mix_16h_to_32_resample_mono;
if (1152 - mp3_buffer_offs >= length_mp3) {
mix_samples(buffer, mp3_mix_buffer[mp3_play_bufsel] + mp3_buffer_offs*2, length<<1);
mix_samples(buffer, mp3_mix_buffer[mp3_play_bufsel] + mp3_buffer_offs*2, length, Pico.snd.cdda_mult);
mp3_buffer_offs += length_mp3;
} else {
// collect samples from both buffers..
int left = 1152 - mp3_buffer_offs;
int left = (1152 - mp3_buffer_offs) * Pico.snd.cdda_div >> 16;
int sm = stereo ? 2 : 1;
if (mp3_play_bufsel == 0)
{
mix_samples(buffer, mp3_mix_buffer[0] + mp3_buffer_offs*2, length<<1);
mp3_buffer_offs = length_mp3 - left;
mix_samples(buffer, mp3_mix_buffer[0] + mp3_buffer_offs*2, length, Pico.snd.cdda_mult);
mp3_play_bufsel = 1;
} else {
mix_samples(buffer, mp3_mix_buffer[1] + mp3_buffer_offs*2, (left>>shr)<<1);
mp3_buffer_offs = length_mp3 - left;
mix_samples(buffer + ((left>>shr)<<1),
mp3_mix_buffer[0], (mp3_buffer_offs>>shr)<<1);
mix_samples(buffer, mp3_mix_buffer[1] + mp3_buffer_offs*2, left, Pico.snd.cdda_mult);
mix_samples(buffer + left * sm,
mp3_mix_buffer[0], (length-left), Pico.snd.cdda_mult);
mp3_play_bufsel = 0;
}
mp3_buffer_offs = (length-left) * Pico.snd.cdda_mult >> 16;
}
mp3_samples_ready -= length_mp3;
}