From e40539535a46fb846bcb11b33e4f0337bf472262 Mon Sep 17 00:00:00 2001
From: nunks <nunks@nunks.org>
Date: Sat, 21 Feb 2026 18:36:35 -0300
Subject: [PATCH] Add ffmpeg

---
 ffmpeg.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 ffmpeg.md

diff --git a/ffmpeg.md b/ffmpeg.md
new file mode 100644
index 0000000..046eb2b
--- /dev/null
+++ b/ffmpeg.md
@@ -0,0 +1,22 @@
+Oneliners (e afins) uteis de FFMPEG pra lembrar
+
+* Converter SSA pra SRT
+``` 
+for f in *.ssa; do ffmpeg -i "$f" "${f%.ssa}.srt"; done 
+ ```
+ * Extrair legendas embarcadas no container de video (sem ocr, só funciona com formatos de texto)
+```
+EXT=mkv;
+for F in *${EXT}; do 
+    while read L FI SI LN SF; do
+        [[ -z $LN ]] && continue;
+        L=$(( L - 1 )); 
+        FN=${F%.$EXT}.$LN.srt;
+        ffmpeg -i "$F" -map $FI:s:$L -c:s srt tmp.srt;
+
+        sed -e 's/<[^>]*>//g' -e 's/{[^}]*}//g' tmp.srt > "$FN";
+        rm tmp.srt;
+        read FI SI LN SF <<< '';
+    done < <(ffprobe "$F" 2>&1 | sed -nr '/Subtitle:/s/^.*Stream #([0-9]):([0-9])\(([a-z-]+)\).*Subtitle: ([a-z]+) .*$/\1 \2 \3 \4/p' | cat -n); 
+done;
+```
\ No newline at end of file