diff options
| -rw-r--r-- | libavcodec/mpegvideo_enc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c index 8aca1d0b3a..76eb40f073 100644 --- a/libavcodec/mpegvideo_enc.c +++ b/libavcodec/mpegvideo_enc.c @@ -1824,16 +1824,18 @@ vbv_retry: if (avctx->rc_buffer_size) { RateControlContext *rcc = &s->rc_context; int max_size = FFMAX(rcc->buffer_index * avctx->rc_max_available_vbv_use, rcc->buffer_index - 500); + int hq = (s->avctx->mb_decision == FF_MB_DECISION_RD || s->avctx->trellis); + int min_step = hq ? 1 : (1<<(FF_LAMBDA_SHIFT + 7))/139; if (put_bits_count(&s->pb) > max_size && s->lambda < s->lmax) { - s->next_lambda = FFMAX(s->lambda + 1, s->lambda * + s->next_lambda = FFMAX(s->lambda + min_step, s->lambda * (s->qscale + 1) / s->qscale); if (s->adaptive_quant) { int i; for (i = 0; i < s->mb_height * s->mb_stride; i++) s->lambda_table[i] = - FFMAX(s->lambda_table[i] + 1, + FFMAX(s->lambda_table[i] + min_step, s->lambda_table[i] * (s->qscale + 1) / s->qscale); } |