Browse code
aacenc_ltp: disable LTP with high lambda values
Makes no sense to enable for high bitrates, the coder does well enough.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Rostislav Pehlivanov authored on 2015/12/08 22:24:48Showing 2 changed files
| ... | ... |
@@ -173,7 +173,7 @@ void ff_aac_search_for_ltp(AACEncContext *s, SingleChannelElement *sce, |
| 173 | 173 |
return; |
| 174 | 174 |
} |
| 175 | 175 |
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- if (!sce->ics.ltp.lag) |
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+ if (!sce->ics.ltp.lag || s->lambda > 120.0f) |
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| 177 | 177 |
return; |
| 178 | 178 |
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| 179 | 179 |
for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) {
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| ... | ... |
@@ -209,7 +209,7 @@ fate-aac-ltp-encode: CMD = enc_dec_pcm adts wav s16le $(TARGET_SAMPLES)/audio-re |
| 209 | 209 |
fate-aac-ltp-encode: CMP = stddev |
| 210 | 210 |
fate-aac-ltp-encode: REF = $(SAMPLES)/audio-reference/luckynight_2ch_44kHz_s16.wav |
| 211 | 211 |
fate-aac-ltp-encode: CMP_SHIFT = -4096 |
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-fate-aac-ltp-encode: CMP_TARGET = 1273 |
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+fate-aac-ltp-encode: CMP_TARGET = 1270 |
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| 213 | 213 |
fate-aac-ltp-encode: SIZE_TOLERANCE = 3560 |
| 214 | 214 |
fate-aac-ltp-encode: FUZZ = 17 |
| 215 | 215 |
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