diff options
| author | Mans Rullgard <mans@mansr.com> | 2011-07-16 01:38:10 +0400 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2011-11-05 16:18:32 +0400 |
| commit | 5ed9457260cadfcf350ae9aece476e2a5fbc490c (patch) | |
| tree | 4f402ede83b297abfefc56a3f869760b1010cc14 /libavcodec | |
| parent | 002e6d185c3febb60131be23907210f35fdf0cb8 (diff) | |
aacps: skip some memcpy() if src and dst would be equal
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e5902d60ce8f7cf10b6e87a57eec536b316261a3)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/aacps.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/libavcodec/aacps.c b/libavcodec/aacps.c index fc124d1972..3cfd18d959 100644 --- a/libavcodec/aacps.c +++ b/libavcodec/aacps.c @@ -813,14 +813,17 @@ static void stereo_processing(PSContext *ps, float (*l)[32][2], float (*r)[32][2 const float (*H_LUT)[8][4] = (PS_BASELINE || ps->icc_mode < 3) ? HA : HB; //Remapping - memcpy(H11[0][0], H11[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[0][0][0])); - memcpy(H11[1][0], H11[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[1][0][0])); - memcpy(H12[0][0], H12[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[0][0][0])); - memcpy(H12[1][0], H12[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[1][0][0])); - memcpy(H21[0][0], H21[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[0][0][0])); - memcpy(H21[1][0], H21[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[1][0][0])); - memcpy(H22[0][0], H22[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[0][0][0])); - memcpy(H22[1][0], H22[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[1][0][0])); + if (ps->num_env_old) { + memcpy(H11[0][0], H11[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[0][0][0])); + memcpy(H11[1][0], H11[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H11[1][0][0])); + memcpy(H12[0][0], H12[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[0][0][0])); + memcpy(H12[1][0], H12[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H12[1][0][0])); + memcpy(H21[0][0], H21[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[0][0][0])); + memcpy(H21[1][0], H21[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H21[1][0][0])); + memcpy(H22[0][0], H22[0][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[0][0][0])); + memcpy(H22[1][0], H22[1][ps->num_env_old], PS_MAX_NR_IIDICC*sizeof(H22[1][0][0])); + } + if (is34) { remap34(&iid_mapped, ps->iid_par, ps->nr_iid_par, ps->num_env, 1); remap34(&icc_mapped, ps->icc_par, ps->nr_icc_par, ps->num_env, 1); |