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Add option to set if zero-sized chunks stop find_chunk (for XVAG)

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This commit is contained in:
bnnm 2017-04-02 12:23:42 +02:00
parent 84cac5e934
commit 2ec41eb054
3 changed files with 8 additions and 8 deletions
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4
src/meta/ps3_xvag.c
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@ -33,7 +33,7 @@ VGMSTREAM * init_vgmstream_ps3_xvag(STREAMFILE *streamFile) {
/* 0x08: flags? (&0x01=big endian?) 0x0a: version (chunk sizes vary) */
/* "fmat": base format */
if (!find_chunk(streamFile, 0x666D6174,first_offset,0, &chunk_offset,NULL, !little_endian)) goto fail; /*"fmat"*/
if (!find_chunk(streamFile, 0x666D6174,first_offset,0, &chunk_offset,NULL, !little_endian, 1)) goto fail; /*"fmat"*/
channel_count = read_32bit(chunk_offset+0x00,streamFile);
codec = read_32bit(chunk_offset+0x04,streamFile);
num_samples = read_32bit(chunk_offset+0x08,streamFile);
@ -88,7 +88,7 @@ VGMSTREAM * init_vgmstream_ps3_xvag(STREAMFILE *streamFile) {
/* "mpin": mpeg info */
/* 0x00/04: mpeg version/layer? other: unknown or repeats of "fmat" */
if (!find_chunk(streamFile, 0x6D70696E,first_offset,0, &chunk_offset,NULL, !little_endian)) goto fail; /*"mpin"*/
if (!find_chunk(streamFile, 0x6D70696E,first_offset,0, &chunk_offset,NULL, !little_endian, 1)) goto fail; /*"mpin"*/
fixed_frame_size = read_32bit(chunk_offset+0x1c,streamFile);
mpeg_data = init_mpeg_codec_data_interleaved(streamFile, start_offset, &mpeg_coding_type, vgmstream->channels, fixed_frame_size, 0);

10
src/streamfile.c
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@ -491,12 +491,12 @@ int check_extensions(STREAMFILE *streamFile, const char * cmp_exts) {
* returns 0 on failure
*/
int find_chunk_be(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size) {
return find_chunk(streamFile, chunk_id, start_offset, full_chunk_size, out_chunk_offset, out_chunk_size, 1);
return find_chunk(streamFile, chunk_id, start_offset, full_chunk_size, out_chunk_offset, out_chunk_size, 1, 0);
}
int find_chunk_le(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size) {
return find_chunk(streamFile, chunk_id, start_offset, full_chunk_size, out_chunk_offset, out_chunk_size, 0);
return find_chunk(streamFile, chunk_id, start_offset, full_chunk_size, out_chunk_offset, out_chunk_size, 0, 0);
}
int find_chunk(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size, int size_big_endian) {
int find_chunk(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size, int size_big_endian, int zero_size_end) {
size_t filesize;
off_t current_chunk = start_offset;
@ -514,8 +514,8 @@ int find_chunk(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, in
return 1;
}
/* end chunk with 0 size, seen in some custom formats */
if (chunk_size == 0)
/* empty chunk with 0 size, seen in some formats (XVAG uses it as end marker, Wwise doesn't) */
if (chunk_size == 0 && zero_size_end)
return 0;
current_chunk += full_chunk_size ? chunk_size : 4+4+chunk_size;

2
src/streamfile.h
View File

@ -158,5 +158,5 @@ int check_extensions(STREAMFILE *streamFile, const char * cmp_exts);
int find_chunk_be(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size);
int find_chunk_le(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size);
int find_chunk(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size, int size_big_endian);
int find_chunk(STREAMFILE *streamFile, uint32_t chunk_id, off_t start_offset, int full_chunk_size, off_t *out_chunk_offset, size_t *out_chunk_size, int size_big_endian, int zero_size_end);
#endif