From: Ovaron <ovaron@myovaron.de>
Date: Thu, 10 Feb 2022 20:51:21 +0000 (+0100)
Subject: Update buffer size for h264 and hevc
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f90831c015889b5430602b34ba224358243540b5;p=thirdparty%2Ftvheadend.git

Update buffer size for h264 and hevc

Increased buffer for h264 and hevc transcoding (from ((self->bit_rate) * 1000) * 2 to ((self->bit_rate) * 1000) * 3).
With bigger buffer picture creates less artefacts on lower bitrates.
---

diff --git a/src/transcoding/codec/codecs/libs/vaapi.c b/src/transcoding/codec/codecs/libs/vaapi.c
index 8fa33402d..6c18d596c 100644
--- a/src/transcoding/codec/codecs/libs/vaapi.c
+++ b/src/transcoding/codec/codecs/libs/vaapi.c
@@ -177,7 +177,7 @@ tvh_codec_profile_vaapi_h264_open(tvh_codec_profile_vaapi_t *self,
     if (self->bit_rate) {
         AV_DICT_SET_BIT_RATE(opts, self->bit_rate);
         AV_DICT_SET_INT(opts, "maxrate", (self->bit_rate) * 1000, AV_DICT_DONT_OVERWRITE);
-        AV_DICT_SET_INT(opts, "bufsize", ((self->bit_rate) * 1000) * 2, AV_DICT_DONT_OVERWRITE);
+        AV_DICT_SET_INT(opts, "bufsize", ((self->bit_rate) * 1000) * 3, AV_DICT_DONT_OVERWRITE);
         AV_DICT_SET(opts, "force_key_frames", "expr:gte(t,n_forced*3)", AV_DICT_DONT_OVERWRITE);
     }
     else {
@@ -239,7 +239,7 @@ tvh_codec_profile_vaapi_hevc_open(tvh_codec_profile_vaapi_t *self,
     if (self->bit_rate) {
         AV_DICT_SET_BIT_RATE(opts, self->bit_rate);
         AV_DICT_SET_INT(opts, "maxrate", (self->bit_rate) * 1000, AV_DICT_DONT_OVERWRITE);
-        AV_DICT_SET_INT(opts, "bufsize", ((self->bit_rate) * 1000) * 2, AV_DICT_DONT_OVERWRITE);
+        AV_DICT_SET_INT(opts, "bufsize", ((self->bit_rate) * 1000) * 3, AV_DICT_DONT_OVERWRITE);
         AV_DICT_SET(opts, "force_key_frames", "expr:gte(t,n_forced*3)", AV_DICT_DONT_OVERWRITE);
     }
     else {