Cool_Tools/vgmstream
1
0
Fork 0
mirror of https://github.com/vgmstream/vgmstream.git synced 2024-11-24 15:00:11 +01:00
Code Issues Packages Projects Releases Wiki Activity

Fix EALayer3 multichannel and looping bugs

Browse Source
This commit is contained in:
bnnm 2017-12-01 20:04:33 +01:00
parent 7d9e5a93e4
commit 8f8b14f80f
3 changed files with 22 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
src/coding/mpeg_custom_utils_ealayer3.c
View File

@ -87,7 +87,7 @@ static int ealayer3_parse_frame_v2(ealayer3_bitstream *is, ealayer3_frame_info *
static int ealayer3_parse_frame_common(ealayer3_bitstream *is, ealayer3_frame_info * eaf);
static int ealayer3_rebuild_mpeg_frame(ealayer3_bitstream* is_0, ealayer3_frame_info* eaf_0, ealayer3_bitstream* is_1, ealayer3_frame_info* eaf_1, ealayer3_bitstream* os);
static int ealayer3_write_pcm_block(VGMSTREAMCHANNEL *stream, mpeg_codec_data *data, int num_stream, ealayer3_frame_info * eaf);
static int ealayer3_skip_data(VGMSTREAMCHANNEL *stream, mpeg_codec_data *data, int num_stream, int at_start, size_t last_eaframe_size);
static int ealayer3_skip_data(VGMSTREAMCHANNEL *stream, mpeg_codec_data *data, int num_stream, int at_start);
static int r_bits(ealayer3_bitstream * iw, int num_bits, uint32_t * value);
static int w_bits(ealayer3_bitstream * ow, int num_bits, uint32_t value);
@ -120,12 +120,6 @@ int mpeg_custom_setup_init_ealayer3(STREAMFILE *streamFile, off_t start_offset,
data->channels_per_frame = eaf.channels;
data->samples_per_frame = eaf.mpeg1 ? 1152 : 576;
/* extra checks */
if (!data->channels_per_frame || data->config.channels != data->channels_per_frame){
VGM_LOG("MPEG EAL3: unknown %i multichannel layout\n", data->config.channels);
goto fail; /* to be fixed */
}
/* encoder delay: EALayer3 handles this while decoding (skips samples as writes PCM blocks) */
return 1;
@ -135,6 +129,7 @@ fail:
/* writes data to the buffer and moves offsets, transforming EALayer3 frames */
int mpeg_custom_parse_frame_ealayer3(VGMSTREAMCHANNEL *stream, mpeg_codec_data *data, int num_stream) {
mpeg_custom_stream *ms = data->streams[num_stream];
int ok, granule_found;
off_t info_offset = stream->offset;
@ -142,10 +137,10 @@ int mpeg_custom_parse_frame_ealayer3(VGMSTREAMCHANNEL *stream, mpeg_codec_data *
ealayer3_bitstream is_0 = {0}, is_1 = {0}, os = {0};
uint8_t ibuf_0[EALAYER3_EA_FRAME_BUFFER_SIZE], ibuf_1[EALAYER3_EA_FRAME_BUFFER_SIZE];
/* read first frame/granule, or PCM-only frame (found alone at the end of SCHl streams) */
{
if (!ealayer3_skip_data(stream, data, num_stream, 1, 0))
//;VGM_LOG("s%i: get granule0 at %lx\n", num_stream,stream->offset);
if (!ealayer3_skip_data(stream, data, num_stream, 1))
goto fail;
is_0.buf = ibuf_0;
@ -159,15 +154,18 @@ int mpeg_custom_parse_frame_ealayer3(VGMSTREAMCHANNEL *stream, mpeg_codec_data *
if (!ok) goto fail;
stream->offset += eaf_0.eaframe_size;
//;VGM_LOG("s%i: get granule0 done at %lx (eaf_size=%x, common_size=%x)\n", num_stream,stream->offset, eaf_0.eaframe_size, eaf_0.common_size);
if (!ealayer3_skip_data(stream, data, num_stream, 0, eaf_0.eaframe_size))
if (!ealayer3_skip_data(stream, data, num_stream, 0))
goto fail;
}
/* get second frame/granule (MPEG1 only) if first granule was found */
granule_found = 0;
while (eaf_0.common_size && eaf_0.mpeg1 && !granule_found) {
if (!ealayer3_skip_data(stream, data, num_stream, 1, 0))
//;VGM_LOG("s%i: get granule1 at %lx\n", num_stream,stream->offset);
if (!ealayer3_skip_data(stream, data, num_stream, 1))
goto fail;
is_1.buf = ibuf_1;
@ -181,8 +179,9 @@ int mpeg_custom_parse_frame_ealayer3(VGMSTREAMCHANNEL *stream, mpeg_codec_data *
if (!ok) goto fail;
stream->offset += eaf_1.eaframe_size;
//;VGM_LOG("s%i: get granule0 done at %lx (eaf_size=%x, common_size=%x)\n", num_stream,stream->offset, eaf_0.eaframe_size, eaf_0.common_size);
if (!ealayer3_skip_data(stream, data, num_stream, 0, eaf_1.eaframe_size))
if (!ealayer3_skip_data(stream, data, num_stream, 0))
goto fail;
/* in V1a there may be PCM-only frames between granules so read until next one (or parse fails) */
@ -192,15 +191,15 @@ int mpeg_custom_parse_frame_ealayer3(VGMSTREAMCHANNEL *stream, mpeg_codec_data *
/* rebuild EALayer frame to MPEG frame */
{
os.buf = data->buffer;
os.bufsize = data->buffer_size;
os.buf = ms->buffer;
os.bufsize = ms->buffer_size;
os.b_off = 0;
os.info_offset = info_offset;
ok = ealayer3_rebuild_mpeg_frame(&is_0, &eaf_0, &is_1, &eaf_1, &os);
if (!ok) goto fail;
data->bytes_in_buffer = os.b_off / 8; /* wrote full MPEG frame, hopefully */
ms->bytes_in_buffer = os.b_off / 8; /* wrote full MPEG frame, hopefully */
}
return 1;
@ -660,13 +659,14 @@ fail:
* (ie. 1st stream skips 2, 2nd stream skips 1, 3rd stream skips 0)
* - repeat again for granule1
*/
static int ealayer3_skip_data(VGMSTREAMCHANNEL *stream, mpeg_codec_data *data, int num_stream, int at_start, size_t last_eaframe_size) {
static int ealayer3_skip_data(VGMSTREAMCHANNEL *stream, mpeg_codec_data *data, int num_stream, int at_start) {
int ok, i;
ealayer3_frame_info eaf;
ealayer3_bitstream is = {0};
uint8_t ibuf[EALAYER3_EA_FRAME_BUFFER_SIZE];
int skips = at_start ? num_stream : data->streams_size - 1 - num_stream;
for (i = 0; i < skips; i++) {
is.buf = ibuf;
is.bufsize = read_streamfile(ibuf,stream->offset,EALAYER3_EA_FRAME_BUFFER_SIZE, stream->streamfile); /* reads less at EOF */
@ -677,6 +677,7 @@ static int ealayer3_skip_data(VGMSTREAMCHANNEL *stream, mpeg_codec_data *data, i
stream->offset += eaf.eaframe_size;
}
//;VGM_LOG("s%i: skipped %i frames, now at %lx\n", num_stream,skips,stream->offset);
return 1;
fail:

5
src/layout/blocked_ea_sns.c
View File

@ -35,6 +35,11 @@ void block_update_ea_sns(off_t block_offset, VGMSTREAM * vgmstream) {
for (i = 0; i < vgmstream->channels; i++) {
off_t channel_start = 0x00;
vgmstream->ch[i].offset = block_offset + 0x08 + channel_start;
/* also fix first offset (for EALayer3) */
if (block_offset == vgmstream->ch[i].channel_start_offset) {
vgmstream->ch[i].channel_start_offset = vgmstream->ch[i].offset;
}
}
vgmstream->current_block_offset = block_offset;

1
src/meta/ea_eaac.c
View File

@ -130,7 +130,6 @@ static VGMSTREAM * init_vgmstream_eaaudiocore_header(STREAMFILE * streamHead, ST
/* seen in sfx and Dead Space ambient tracks */
if (flags & 0x20) {
VGM_LOG("flg=%x\n",flags);
loop_flag = 1;
loop_start = 0;
loop_end = num_samples;