From c121b2426879e531e42fb57b837dcc4ebabb8abe Mon Sep 17 00:00:00 2001
From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Thu, 13 Mar 2025 18:37:42 +0100
Subject: [PATCH] set audio encoder timebase to the first video stream timebase
 automatically

This allows e.g. PCM encoder to calculate frame length.
---
 src/main.rs | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 6878a87..a093604 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -589,7 +589,7 @@ impl Transcoder {
                         _ => {},
                     };
                 }
-                if self.global_tb != (0, 0) {
+                if self.global_tb != (0, 0) && oopts.enc_params.format.is_audio() {
                     oopts.enc_params.tb_num = self.global_tb.0;
                     oopts.enc_params.tb_den = self.global_tb.1;
                 }
@@ -1033,7 +1033,6 @@ fn main() {
     let full_reg = FullRegister::new();
 
     let mut transcoder = Transcoder::new();
-    let mut use_video_tb = false;
 
     let mut arg_idx = 1;
     let mut printed_info = false;
@@ -1185,9 +1184,6 @@ fn main() {
             "--calc-len" => {
                 transcoder.calc_len = true;
             },
-            "--use-video-tb" => {
-                use_video_tb = true;
-            },
             "--verbose" | "-v" => transcoder.verbose = 1,
             "-vv" => transcoder.verbose = 2,
             "-v-" => transcoder.verbose = 0,
@@ -1277,7 +1273,7 @@ fn main() {
         let max_id = sm.iter().fold(0u32, |id, strm| id.max(strm.id));
         for stream in sm.iter() {
             let mut newstream = (*stream).clone();
-            if use_video_tb && transcoder.global_tb == (0, 0) && newstream.get_media_type() == StreamType::Video {
+            if transcoder.global_tb == (0, 0) && newstream.get_media_type() == StreamType::Video {
                 transcoder.global_tb = newstream.get_timebase();
             }
             newstream.id += start;
-- 
2.39.5