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| author | Alex Converse <alex.converse@gmail.com> | 2011-01-28 06:13:50 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2011-01-30 03:41:00 +0100 |
| commit | 79615a3e50d870d4b222e6bc59b0cb66ac22ff19 (patch) | |
| tree | 1b186f1026056a8b4685db743560c4da0c3a2687 | |
| parent | 6219b67e8433325a7a159497262f7a9aaf48ad67 (diff) | |
| download | ffmpeg-79615a3e50d870d4b222e6bc59b0cb66ac22ff19.tar.gz | |
aacdec: Convert some loop copies into memcpy()s.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e5c82df80ef49957fe532d0992985012d6d97955)
| -rw-r--r-- | libavcodec/aacdec.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c index 2d5fb540a9..21270994da 100644 --- a/libavcodec/aacdec.c +++ b/libavcodec/aacdec.c @@ -1723,8 +1723,7 @@ static void imdct_and_windowing(AACContext *ac, SingleChannelElement *sce) (ics->window_sequence[0] == ONLY_LONG_SEQUENCE || ics->window_sequence[0] == LONG_START_SEQUENCE)) { ac->dsp.vector_fmul_window( out, saved, buf, lwindow_prev, 0, 512); } else { - for (i = 0; i < 448; i++) - out[i] = saved[i]; + memcpy( out, saved, 448 * sizeof(float)); if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) { ac->dsp.vector_fmul_window(out + 448 + 0*128, saved + 448, buf + 0*128, swindow_prev, 0, 64); @@ -1735,15 +1734,13 @@ static void imdct_and_windowing(AACContext *ac, SingleChannelElement *sce) memcpy( out + 448 + 4*128, temp, 64 * sizeof(float)); } else { ac->dsp.vector_fmul_window(out + 448, saved + 448, buf, swindow_prev, 0, 64); - for (i = 576; i < 1024; i++) - out[i] = buf[i-512]; + memcpy( out + 576, buf + 64, 448 * sizeof(float)); } } // buffer update if (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) { - for (i = 0; i < 64; i++) - saved[i] = temp[64 + i]; + memcpy( saved, temp + 64, 64 * sizeof(float)); ac->dsp.vector_fmul_window(saved + 64, buf + 4*128 + 64, buf + 5*128, swindow, 0, 64); ac->dsp.vector_fmul_window(saved + 192, buf + 5*128 + 64, buf + 6*128, swindow, 0, 64); ac->dsp.vector_fmul_window(saved + 320, buf + 6*128 + 64, buf + 7*128, swindow, 0, 64); |