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winemp3: Try to find a valid header instead of failing immediately. 

After seeking there might be some initial garbage, this makes it ignore it.
This commit is contained in:
Maarten Lankhorst 2008-06-10 16:52:06 +02:00 committed by Alexandre Julliard
parent 1328150193
commit 586d9e140e
3 changed files with 18 additions and 7 deletions
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8
dlls/winemp3.acm/common.c
View File

@ -71,7 +71,7 @@ int head_check(unsigned long head)
/*
* the code a header and write the information
* decode a header and write the information
* into the frame structure
*/
int decode_header(struct frame *fr,unsigned long newhead)
@ -127,10 +127,11 @@ int decode_header(struct frame *fr,unsigned long newhead)
fr->framesize = (long) tabsel_123[fr->lsf][0][fr->bitrate_index] * 12000;
fr->framesize /= freqs[fr->sampling_frequency];
fr->framesize = ((fr->framesize+fr->padding)<<2)-4;
break;
#else
FIXME("Layer 1 not supported!\n");
return 0;
#endif
break;
case 2:
#ifdef LAYER2
#if 0
@ -140,10 +141,11 @@ int decode_header(struct frame *fr,unsigned long newhead)
fr->framesize = (long) tabsel_123[fr->lsf][1][fr->bitrate_index] * 144000;
fr->framesize /= freqs[fr->sampling_frequency];
fr->framesize += fr->padding - 4;
break;
#else
FIXME("Layer 2 not supported!\n");
return 0;
#endif
break;
case 3:
#if 0
fr->do_layer = do_layer3;

11
dlls/winemp3.acm/interface.c
View File

@ -170,12 +170,19 @@ int decodeMP3(struct mpstr *mp,const unsigned char *in,int isize,unsigned char *
/* First decode header */
if(mp->framesize == 0) {
int ret;
if(mp->bsize < 4) {
return MP3_NEED_MORE;
}
read_head(mp);
if (decode_header(&mp->fr,mp->header) == 0) {
return MP3_ERR;
while (!(ret = decode_header(&mp->fr,mp->header)) && mp->bsize)
{
mp->header = mp->header << 8;
mp->header |= read_buf_byte(mp);
}
if (!ret) {
return MP3_NEED_MORE;
}
mp->framesize = mp->fr.framesize;
}

6
dlls/winemp3.acm/mpegl3.c
View File

@ -167,6 +167,8 @@ static void mp3_horse(PACMDRVSTREAMINSTANCE adsi,
buffered_during = get_num_buffered_bytes(&amd->mp);
if (ret != MP3_OK)
{
if (ret == MP3_ERR)
FIXME("Error occured during decoding!\n");
*ndst = *nsrc = 0;
return;
}
@ -394,7 +396,7 @@ static LRESULT MPEG3_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
* MPEG3_Reset
*
*/
static void MPEG3_Reset(PACMDRVSTREAMINSTANCE adsi, AcmMpeg3Data* aad)
static void MPEG3_Reset(PACMDRVSTREAMINSTANCE adsi, AcmMpeg3Data* aad)
{
ClearMP3Buffer(&aad->mp);
InitMP3(&aad->mp);
@ -540,7 +542,7 @@ static LRESULT MPEG3_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEAD
*/
if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
{
MPEG3_Reset(adsi, aad);
MPEG3_Reset(adsi, aad);
}
aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);