diff options
| author | Nicolas Bertrand <nicoinattendu@gmail.com> | 2013-07-12 23:15:43 +0200 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2013-07-13 07:54:12 +0200 |
| commit | f56fe04de3cc4cdc6b618dfe7a3506fc2ea79795 (patch) | |
| tree | b6311f6651e417a2abb23940f01b3e3c4c2fe140 /libavcodec/mqc.c | |
| parent | bec509db4364b9c8b00437939a4197fc12fec3e8 (diff) | |
jpeg2000: Initialize only once mqc arrays
Improves decoding speed.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Diffstat (limited to 'libavcodec/mqc.c')
| -rw-r--r-- | libavcodec/mqc.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/libavcodec/mqc.c b/libavcodec/mqc.c index 4a8ce0356c..60d87ba1a6 100644 --- a/libavcodec/mqc.c +++ b/libavcodec/mqc.c @@ -92,14 +92,9 @@ uint16_t ff_mqc_qe [2 * 47]; uint8_t ff_mqc_nlps[2 * 47]; uint8_t ff_mqc_nmps[2 * 47]; -void ff_mqc_init_contexts(MqcState *mqc) +void ff_mqc_init_context_tables(void) { int i; - memset(mqc->cx_states, 0, sizeof(mqc->cx_states)); - mqc->cx_states[MQC_CX_UNI] = 2 * 46; - mqc->cx_states[MQC_CX_RL] = 2 * 3; - mqc->cx_states[0] = 2 * 4; - for (i = 0; i < 47; i++) { ff_mqc_qe[2 * i] = ff_mqc_qe[2 * i + 1] = cx_states[i].qe; @@ -110,3 +105,11 @@ void ff_mqc_init_contexts(MqcState *mqc) ff_mqc_nmps[2 * i + 1] = 2 * cx_states[i].nmps + 1; } } + +void ff_mqc_init_contexts(MqcState *mqc) +{ + memset(mqc->cx_states, 0, sizeof(mqc->cx_states)); + mqc->cx_states[MQC_CX_UNI] = 2 * 46; + mqc->cx_states[MQC_CX_RL] = 2 * 3; + mqc->cx_states[0] = 2 * 4; +} |