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Xiph.Org
aom-rav1e
Commits
d32e000a
Commit
d32e000a
authored
Feb 26, 2014
by
Marco Paniconi
Browse files
Update some comments in vpx_temporal_scalable_patterns.
Change-Id: I747d26c544cc56feaaf7c75403f2f4c16a496bb7
parent
08f250f5
Changes
1
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examples/vpx_temporal_scalable_patterns.c
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d32e000a
...
...
@@ -52,6 +52,12 @@ struct RateControlMetrics {
double
layer_encoding_bitrate
[
VPX_TS_MAX_LAYERS
];
};
// Note: these rate control metrics assume only 1 key frame in the
// sequence (i.e., first frame only). So for temporal pattern# 7
// (which has key frame for every frame on base layer), the metrics
// computation will be off/wrong.
// TODO(marpan): Update these metrics to account for multiple key frames
// in the stream.
static
void
set_rate_control_metrics
(
struct
RateControlMetrics
*
rc
,
vpx_codec_enc_cfg_t
*
cfg
)
{
unsigned
int
i
=
0
;
...
...
@@ -565,6 +571,9 @@ int main(int argc, char **argv) {
}
vpx_codec_control
(
&
codec
,
VP8E_SET_STATIC_THRESHOLD
,
1
);
vpx_codec_control
(
&
codec
,
VP8E_SET_TOKEN_PARTITIONS
,
1
);
// This controls the maximum target size of the key frame.
// For generating smaller key frames, use a smaller max_intra_size_pct
// value, like 100 or 200.
max_intra_size_pct
=
(
int
)
(((
double
)
cfg
.
rc_buf_optimal_sz
*
0
.
5
)
*
((
double
)
cfg
.
g_timebase
.
den
/
cfg
.
g_timebase
.
num
)
/
10
.
0
);
vpx_codec_control
(
&
codec
,
VP8E_SET_MAX_INTRA_BITRATE_PCT
,
max_intra_size_pct
);
...
...
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