From 9223a333f0779ab1f344aee611ef7881eb2ab7ca Mon Sep 17 00:00:00 2001
From: Arkadiusz Wieczorek <kontakt@arkadiusz-wieczorek.pl>
Date: Sun, 3 Oct 2021 22:21:04 +0200
Subject: [PATCH] Provide original bitrate to ffmpeg

---
 dziurkacz-fast.mjs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dziurkacz-fast.mjs b/dziurkacz-fast.mjs
index a3943fd..77a2ea5 100755
--- a/dziurkacz-fast.mjs
+++ b/dziurkacz-fast.mjs
@@ -12,6 +12,9 @@ const FREQ = 48000;
 const FRAMERATE = parseFloat(
   (await $`mediainfo --Output="Video;%FrameRate%" ${video}`).stdout
 );
+const BITRATE = parseFloat(
+  (await $`mediainfo --Inform="Video;%BitRate/String%" ${video}`).stdout
+);
 
 const labels_contents = (await $`awk '{print $3, $4, $5}' < ${labels}`).stdout;
 
@@ -182,4 +185,4 @@ ${audio_filter}
 ${ns.map((n) => `[copy${n}t][copy${n}ta]`).join(" ")} 
 concat=n=${pieces.length}:v=1:a=1 [out_video] [out_audio]`;
 
-await $`ffmpeg -i ${video} -b:v 20000k -filter_complex ${filter} -map '[out_video]' -map '[out_audio]' ${`${video}.cut-complex.mp4`}`;
+await $`ffmpeg -i ${video} -b:v ${BITRATE}M -filter_complex ${filter} -map '[out_video]' -map '[out_audio]' ${`${video}.cut-complex.mp4`}`;