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Fix audio bugs: wav garbage samples & looping

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This commit is contained in:
Charlie Malmqvist 2024-08-01 13:45:16 +02:00
parent 782d86c38a
commit a63d76c733
1 changed files with 13 additions and 12 deletions
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25
oogabooga/audio.c
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@ -195,18 +195,18 @@ wav_open_file(string path, Wav_Stream *wav, u64 sample_rate, u64 *number_of_fram
const u64 NON_DATA_CHUNK_MAX_SIZE = 40;
string chunk = talloc_string(NON_DATA_CHUNK_MAX_SIZE);
for (u64 byte_pos = 4; byte_pos < number_of_sub_chunk_bytes;) {
for (u64 sub_chunk_byte_pos = 4; sub_chunk_byte_pos < number_of_sub_chunk_bytes;) {
ok = os_file_read(wav->file, chunk_header.data, 8, &read);
if (!ok || read != 8) {
os_file_close(wav->file);
return false;
}
byte_pos += 8;
sub_chunk_byte_pos += 8;
string chunk_id = string_view(chunk_header, 0, 4);
u32 chunk_size = *(u32*)(chunk_header.data+4);
byte_pos += chunk_size;
sub_chunk_byte_pos += chunk_size;
// Ignored chunks
// THIS IS WHY WE CAN'T HAVE NICE THINGS
@ -258,21 +258,17 @@ wav_open_file(string path, Wav_Stream *wav, u64 sample_rate, u64 *number_of_fram
if (number_of_bytes % 2 != 0) {
// Consume pad byte
u8 pad;
ok = os_file_read(wav->file, &pad, 1, &read);
if (!ok || read != 1) {
os_file_close(wav->file);
return false;
}
number_of_bytes -= 1;
}
wav->pcm_start = byte_pos - chunk_size;
u64 number_of_samples
= number_of_bytes / (wav->bits_per_sample / 8);
wav->pcm_start = os_file_get_pos(wav->file);
wav->number_of_frames = number_of_samples / wav->channels;
*number_of_frames = wav->number_of_frames; // If same sample rates...
} else {
log_warning("Unhandled chunk id '%s' in wave file @ %s", chunk_id, path);
@ -821,7 +817,8 @@ audio_source_sample_next_frames(Audio_Source *src, u64 first_frame_index, u64 nu
u64 new_index = first_frame_index;
// #Checkout
// first_frame_index = max(first_frame_index, 3);
int num_retrieved;
switch (src->kind) {
@ -877,6 +874,8 @@ audio_source_sample_next_frames(Audio_Source *src, u64 first_frame_index, u64 nu
}
}
if (looping && new_index == src->number_of_frames) new_index = 0;
return new_index;
}
@ -1659,6 +1658,8 @@ do_program_audio_sample(u64 number_of_output_frames, Audio_Format out_format,
if (p->fade_frames == 0) continue;
}
if (p->frame_index >= p->source.number_of_frames && !p->looping) continue;
spinlock_acquire_or_wait(&p->sample_lock);
Audio_Source src = p->source;