lavc/aomenc: Force default qmax of 0 if crf was set to 0.

Fixes lossless encoding without setting qmax to 0.
4 years ago · 288ca1c667
parent 9f8c81efc5
commit 288ca1c667
1 changed files with 4 additions and 1 deletions
--- a/libavcodec/libaomenc.c
+++ b/libavcodec/libaomenc.c
@ -654,8 +654,11 @@ static av_cold int aom_init(AVCodecContext *avctx,

    if (avctx->qmin >= 0)
        enccfg.rc_min_quantizer = avctx->qmin;
-    if (avctx->qmax >= 0)
+    if (avctx->qmax >= 0) {
        enccfg.rc_max_quantizer = avctx->qmax;
+    } else if (!ctx->crf) {
+        enccfg.rc_max_quantizer = 0;
+    }

    if (enccfg.rc_end_usage == AOM_CQ || enccfg.rc_end_usage == AOM_Q) {
        if (ctx->crf < enccfg.rc_min_quantizer || ctx->crf > enccfg.rc_max_quantizer) {