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Code Issues Releases Activity

Combine output_subframe_verbatim() and output_subframe_lpc().

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Originally committed as revision 24608 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2010-07-30 21:06:38 +00:00
parent 6266cfb4ce
commit 6d263f41ae
1 changed files with 12 additions and 22 deletions
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34
libavcodec/flacenc.c
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@ -1101,25 +1101,20 @@ static void output_frame_header(FlacEncodeContext *s)
}
static void output_subframe_verbatim(FlacEncodeContext *s, FlacSubframe *sub)
{
put_sbits(&s->pb, sub->obits, sub->residual[0]);
if (sub->type == FLAC_SUBFRAME_VERBATIM) {
int i;
for (i = 0; i < s->frame.blocksize; i++)
put_sbits(&s->pb, sub->obits, sub->residual[i]);
}
}
static void output_subframe_lpc(FlacEncodeContext *s, FlacSubframe *sub)
static void output_subframe(FlacEncodeContext *s, FlacSubframe *sub)
{
int i, p, porder, psize;
int32_t *res, *part_end, *frame_end;
int32_t *part_end;
int32_t *res = sub->residual;
int32_t *frame_end = &sub->residual[s->frame.blocksize];
if (sub->type == FLAC_SUBFRAME_CONSTANT) {
put_sbits(&s->pb, sub->obits, res[0]);
} else if (sub->type == FLAC_SUBFRAME_VERBATIM) {
while (res < frame_end)
put_sbits(&s->pb, sub->obits, *res++);
} else {
/* warm-up samples */
res = sub->residual;
for (i = 0; i < sub->order; i++)
put_sbits(&s->pb, sub->obits, *res++);
@ -1142,7 +1137,6 @@ static void output_subframe_lpc(FlacEncodeContext *s, FlacSubframe *sub)
/* residual */
part_end = &sub->residual[psize ];
frame_end = &sub->residual[s->frame.blocksize];
for (p = 0; p < 1 << porder; p++) {
int k = sub->rc.params[p];
put_bits(&s->pb, 4, k);
@ -1150,6 +1144,7 @@ static void output_subframe_lpc(FlacEncodeContext *s, FlacSubframe *sub)
set_sr_golomb_flac(&s->pb, *res++, k, INT32_MAX, 0);
part_end = FFMIN(frame_end, part_end + psize);
}
}
}
@ -1170,12 +1165,7 @@ static void output_subframes(FlacEncodeContext *s)
put_bits(&s->pb, 1, 0); /* no wasted bits */
/* subframe */
switch (sub->type) {
case FLAC_SUBFRAME_CONSTANT:
case FLAC_SUBFRAME_VERBATIM: output_subframe_verbatim(s, sub); break;
case FLAC_SUBFRAME_FIXED:
case FLAC_SUBFRAME_LPC: output_subframe_lpc( s, sub); break;
}
output_subframe(s, sub);
}
}