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Merge pull request #1400 from EdnessP/master

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Reflections IMA ADPCM: Use interleave block size for frame sample calculation
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bnnm 2023-07-29 01:06:50 +02:00 committed by GitHub
commit 15543f2207
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2 changed files with 7 additions and 5 deletions
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3
src/base/decode.c
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@ -422,10 +422,11 @@ int decode_get_samples_per_frame(VGMSTREAM* vgmstream) {
case coding_APPLE_IMA4:
return 64;
case coding_MS_IMA:
case coding_REF_IMA:
return ((vgmstream->frame_size - 0x04*vgmstream->channels) * 2 / vgmstream->channels) + 1; /* +1 from header sample */
case coding_MS_IMA_mono:
return ((vgmstream->frame_size - 0x04) * 2) + 1; /* +1 from header sample */
case coding_REF_IMA:
return ((vgmstream->interleave_block_size - 0x04 * vgmstream->channels) * 2 / vgmstream->channels) + 1; /* +1 from header sample */
case coding_RAD_IMA:
return (vgmstream->interleave_block_size - 0x04*vgmstream->channels) * 2 / vgmstream->channels;
case coding_NDS_IMA:

7
src/meta/xa_xa30.c
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@ -5,7 +5,7 @@
VGMSTREAM * init_vgmstream_xa_xa30(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
off_t start_offset;
int loop_flag, channel_count, codec;
int loop_flag, channel_count, codec, interleave_block_size;
size_t stream_size;
int total_subsongs, target_subsong = streamFile->stream_index;
@ -31,6 +31,7 @@ VGMSTREAM * init_vgmstream_xa_xa30(STREAMFILE *streamFile) {
codec = read_32bitLE(0x0c,streamFile);
start_offset = read_32bitLE(0x10 + 0x04*(target_subsong-1),streamFile);
stream_size = read_32bitLE(0x18 + 0x04*(target_subsong-1),streamFile);
interleave_block_size = read_32bitLE(0x24, streamFile);
/* build the VGMSTREAM */
@ -47,14 +48,14 @@ VGMSTREAM * init_vgmstream_xa_xa30(STREAMFILE *streamFile) {
case 0x00: /* PCM (rare, seen in Driver 3) */
vgmstream->coding_type = coding_PCM16LE;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = read_32bitLE(0x24,streamFile) / 2;
vgmstream->interleave_block_size = interleave_block_size / 2;
vgmstream->num_samples = pcm_bytes_to_samples(stream_size, channel_count, 16);
break;
case 0x01: /* MS-IMA variation */
vgmstream->coding_type = coding_REF_IMA;
vgmstream->layout_type = layout_none;
vgmstream->interleave_block_size = read_32bitLE(0x24,streamFile);
vgmstream->interleave_block_size = interleave_block_size;
vgmstream->num_samples = ms_ima_bytes_to_samples(stream_size, vgmstream->interleave_block_size, channel_count);
break;