57 lines
2.0 KiB
Diff
57 lines
2.0 KiB
Diff
diff --git a/media/libspeex_resampler/src/resample.c b/media/libspeex_resampler/src/resample.c
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--- a/media/libspeex_resampler/src/resample.c
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+++ b/media/libspeex_resampler/src/resample.c
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@@ -56,16 +56,18 @@
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(e.g. 2/3), and get rid of the rounding operations in the inner loop.
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The latter both reduces CPU time and makes the algorithm more SIMD-friendly.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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+#define RESAMPLE_HUGEMEM 1
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+
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#ifdef OUTSIDE_SPEEX
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#include <stdlib.h>
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static void *speex_alloc (int size) {return calloc(size,1);}
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static void *speex_realloc (void *ptr, int size) {return realloc(ptr, size);}
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static void speex_free (void *ptr) {free(ptr);}
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#include "speex_resampler.h"
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#include "arch.h"
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#else /* OUTSIDE_SPEEX */
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@@ -632,25 +634,26 @@ static int update_filter(SpeexResamplerS
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st->oversample >>= 1;
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if (st->oversample < 1)
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st->oversample = 1;
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} else {
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/* up-sampling */
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st->cutoff = quality_map[st->quality].upsample_bandwidth;
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}
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- /* Choose the resampling type that requires the least amount of memory */
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-#ifdef RESAMPLE_FULL_SINC_TABLE
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- use_direct = 1;
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- if (INT_MAX/sizeof(spx_word16_t)/st->den_rate < st->filt_len)
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- goto fail;
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+ use_direct =
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+#ifdef RESAMPLE_HUGEMEM
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+ /* Choose the direct resampler, even with higher initialization costs,
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+ when resampling any multiple of 100 to 44100. */
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+ st->den_rate <= 441
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#else
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- use_direct = st->filt_len*st->den_rate <= st->filt_len*st->oversample+8
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+ /* Choose the resampling type that requires the least amount of memory */
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+ st->filt_len*st->den_rate <= st->filt_len*st->oversample+8
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+#endif
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&& INT_MAX/sizeof(spx_word16_t)/st->den_rate >= st->filt_len;
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-#endif
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if (use_direct)
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{
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min_sinc_table_length = st->filt_len*st->den_rate;
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} else {
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if ((INT_MAX/sizeof(spx_word16_t)-8)/st->oversample < st->filt_len)
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goto fail;
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min_sinc_table_length = st->filt_len*st->oversample+8;
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