gecko-dev/media/libspeex_resampler/hugemem.patch
Paul Adenot a01cea3a7b Bug 1341254 - Update libspeex_resampler to 79822c. r=karlt
MozReview-Commit-ID: EDYCyjrWmz1

--HG--
extra : rebase_source : 94d87c4b911ac646e755e03dc938da57ce237aad
2017-03-06 17:16:23 +01:00

58 lines
2.0 KiB
Diff

diff --git a/media/libspeex_resampler/src/resample.c b/media/libspeex_resampler/src/resample.c
--- a/media/libspeex_resampler/src/resample.c
+++ b/media/libspeex_resampler/src/resample.c
@@ -56,16 +56,18 @@
(e.g. 2/3), and get rid of the rounding operations in the inner loop.
The latter both reduces CPU time and makes the algorithm more SIMD-friendly.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#define RESAMPLE_HUGEMEM 1
+
#ifdef OUTSIDE_SPEEX
#include <stdlib.h>
static void *speex_alloc (int size) {return calloc(size,1);}
static void *speex_realloc (void *ptr, int size) {return realloc(ptr, size);}
static void speex_free (void *ptr) {free(ptr);}
#include "speex_resampler.h"
#include "arch.h"
#else /* OUTSIDE_SPEEX */
@@ -643,25 +645,26 @@ static int update_filter(SpeexResamplerS
st->oversample >>= 1;
if (st->oversample < 1)
st->oversample = 1;
} else {
/* up-sampling */
st->cutoff = quality_map[st->quality].upsample_bandwidth;
}
- /* Choose the resampling type that requires the least amount of memory */
-#ifdef RESAMPLE_FULL_SINC_TABLE
- use_direct = 1;
- if (INT_MAX/sizeof(spx_word16_t)/st->den_rate < st->filt_len)
- goto fail;
+ use_direct =
+#ifdef RESAMPLE_HUGEMEM
+ /* Choose the direct resampler, even with higher initialization costs,
+ when resampling any multiple of 100 to 44100. */
+ st->den_rate <= 441
#else
- use_direct = st->filt_len*st->den_rate <= st->filt_len*st->oversample+8
+ /* Choose the resampling type that requires the least amount of memory */
+ st->filt_len*st->den_rate <= st->filt_len*st->oversample+8
+#endif
&& INT_MAX/sizeof(spx_word16_t)/st->den_rate >= st->filt_len;
-#endif
if (use_direct)
{
min_sinc_table_length = st->filt_len*st->den_rate;
} else {
if ((INT_MAX/sizeof(spx_word16_t)-8)/st->oversample < st->filt_len)
goto fail;
min_sinc_table_length = st->filt_len*st->oversample+8;