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Enable experimental rate control for GOP 16

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This commit is contained in:
Ari Lemmetti 2020-02-14 18:58:47 +02:00
parent a0a22dec8a
commit 9849fb7c77
1 changed files with 13 additions and 3 deletions
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16
src/encoder.c
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@ -732,7 +732,8 @@ void kvz_encoder_control_input_init(encoder_control_t * const encoder,
* \return 1 on success, 0 on failure.
*
* Selects appropriate weights for layers according to the target bpp.
* Only GOP structures with exactly four layers are supported.
* Only GOP structures with exactly four layers are supported with the.
* exception of experimental GOP 16.
*/
static int encoder_control_init_gop_layer_weights(encoder_control_t * const encoder)
{
@ -807,8 +808,17 @@ static int encoder_control_init_gop_layer_weights(encoder_control_t * const enco
break;
default:
fprintf(stderr, "Unsupported number of GOP layers (%d)\n", num_layers);
return 0;
if (!encoder->cfg.gop_lowdelay && encoder->cfg.gop_len == 16) {
fprintf(stdout,
"Rate control: Using experimental weights for GOP layers (%d)\n",
num_layers);
for (int i = 0; i < MAX_GOP_LAYERS; ++i) {
encoder->gop_layer_weights[i] = (i == 0) ? 10 : 2;
}
} else {
fprintf(stderr, "Unsupported number of GOP layers (%d)\n", num_layers);
return 0;
}
}
// Normalize weights so that the sum of weights in a GOP is one.