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extend dbg messages for invalid sample loops

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Tom M 2017-08-04 18:57:31 +02:00 committed by GitHub
parent cc84b40736
commit 5ea1e34100
1 changed files with 17 additions and 9 deletions
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26
fluidsynth/src/sfloader/fluid_defsfont.c
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@ -3160,8 +3160,8 @@ fixup_sample (SFData * sf)
fluid_list_t *p;
SFSample *sam;
int invalid_loops=FALSE;
int inv_start;
int inv_end;
int invalid_loopstart;
int invalid_loopend, loopend_end_mismatch;
p = sf->sample;
while (p)
@ -3169,14 +3169,16 @@ fixup_sample (SFData * sf)
sam = (SFSample *) (p->data);
/* The SoundFont 2.4 spec defines the loop start index as the first sample point of the loop */
inv_start = (sam->loopstart < sam->start) || (sam->loopstart >= sam->loopend);
invalid_loopstart = (sam->loopstart < sam->start) || (sam->loopstart >= sam->loopend);
/* while loop end is the first point AFTER the last sample of the loop.
* this is as it should be. however we cannot be sure whether any of sam.loopend or sam.end
* is correct. hours of thinking through this have concluded, that it would be best practice
* to mangle with loops as little as necessary by only making sure loopend is within
* sdtachunk_size. incorrect soundfont shall preferably fail loudly. */
inv_end = (sam->loopend > sdtachunk_size) || (sam->loopstart >= sam->loopend);
invalid_loopend = (sam->loopend > sdtachunk_size) || (sam->loopstart >= sam->loopend);
loopend_end_mismatch = (sam->loopend > sam->end);
/* if sample is not a ROM sample and end is over the sample data chunk
or sam start is greater than 4 less than the end (at least 4 samples) */
if ((!(sam->sampletype & FLUID_SAMPLETYPE_ROM)
@ -3190,26 +3192,32 @@ fixup_sample (SFData * sf)
return (OK);
}
else if (inv_start || inv_end)
else if (invalid_loopstart || invalid_loopend || loopend_end_mismatch)
{
/* loop is fowled?? (cluck cluck :) */
invalid_loops |= TRUE;
/* force incorrect loop points into the sample range, ignore padding */
if(inv_start)
if(invalid_loopstart)
{
FLUID_LOG (FLUID_DBG, _("Sample '%s' has invalid loop start '%d',"
FLUID_LOG (FLUID_DBG, _("Sample '%s' has unusable loop start '%d',"
" setting to sample start at '%d'+1"), sam->name, sam->loopstart, sam->start);
sam->loopstart = sam->start + 1;
}
if(inv_end)
if(invalid_loopend)
{
FLUID_LOG (FLUID_DBG, _("Sample '%s' has invalid loop stop '%d',"
FLUID_LOG (FLUID_DBG, _("Sample '%s' has out-of-range loop stop '%d',"
" setting to sample stop at '%d'-1"), sam->name, sam->loopend, sam->end);
/* since sam->end points after valid sample data, set loopend to last sample available */
sam->loopend = sam->end - 1;
}
if(loopend_end_mismatch)
{
FLUID_LOG (FLUID_DBG, _("Sample '%s' has invalid loop stop '%d',"
", sample stop at '%d', using it anyway"), sam->name, sam->loopend, sam->end);
}
}
/* convert sample end, loopstart, loopend to offsets from sam->start */