From 205b8fd078e50aa3f7f401646dbb73de1bb35a10 Mon Sep 17 00:00:00 2001
From: Tobias Rapp <t.rapp@noa-archive.com>
Date: Mon, 6 Mar 2017 08:53:28 +0100
Subject: avcodec: estimate output bitrate for uncompressed video codecs

Allows to get a more realistic total bitrate (and estimated file size)
in avi_write_header. Previously a static default value of 200k was
assumed.

Adds an internal helper function for bitrate guessing.

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/v210enc.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'libavcodec/v210enc.c')

diff --git a/libavcodec/v210enc.c b/libavcodec/v210enc.c
index d3a8e26bc1..a6afbbfc41 100644
--- a/libavcodec/v210enc.c
+++ b/libavcodec/v210enc.c
@@ -110,6 +110,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
     ff_v210enc_init(s);
 
+    avctx->bits_per_coded_sample = 20;
+    avctx->bit_rate = ff_guess_coded_bitrate(avctx) * 16 / 15;
+
     return 0;
 }
 
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