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Fix rate_control for other LP-GOPS

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This commit is contained in:
Joose Sainio 2018-11-06 14:20:44 +02:00
parent 67a6ba667e
commit d95ac11a3b
1 changed files with 12 additions and 1 deletions
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13
src/rate_control.c
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@ -79,8 +79,19 @@ static double gop_allocate_bits(encoder_state_t * const state)
int pictures_coded = MAX(0, state->frame->num - encoder->cfg.owf); int pictures_coded = MAX(0, state->frame->num - encoder->cfg.owf);
int gop_offset = (state->frame->gop_offset - encoder->cfg.owf) % MAX(1, encoder->cfg.gop_len); int gop_offset = (state->frame->gop_offset - encoder->cfg.owf) % MAX(1, encoder->cfg.gop_len);
if(encoder->cfg.gop_lp_definition.d != 0 && encoder->cfg.gop_lp_definition.t != 0)
{
// With LP-GOP the bits coded is not always updated correctly so this is
// a band-aid fix for getting a better bit allocation
uint64_t previous_bits = state->previous_encoder_state->frame->cur_pic_target_bits;
bits_coded = previous_bits > bits_coded ? 0 : bits_coded - previous_bits;
// Subtract number of pictures in the partially coded GOP.
pictures_coded -= gop_offset + 1;
}
// Only take fully coded GOPs into account. // Only take fully coded GOPs into account.
if (encoder->cfg.gop_len > 0 && gop_offset != encoder->cfg.gop_len - 1) { else if (encoder->cfg.gop_len > 0 && gop_offset != encoder->cfg.gop_len - 1) {
// Subtract number of bits in the partially coded GOP. // Subtract number of bits in the partially coded GOP.
bits_coded -= state->frame->cur_gop_bits_coded; bits_coded -= state->frame->cur_gop_bits_coded;
// Subtract number of pictures in the partially coded GOP. // Subtract number of pictures in the partially coded GOP.