From ddce86afaf99392089e65cfa30464bbe1754e66e Mon Sep 17 00:00:00 2001
From: MeexReay <meexreay@gmail.com>
Date: Thu, 24 Apr 2025 23:24:26 +0300
Subject: [PATCH] some fixes

---
 README.md          | 18 +++++++++++++++---
 compress-videos.sh | 17 +++++++++++++++++
 convert-to-av1.sh  | 18 +++++++++++++++---
 dl-video.sh        |  8 ++++++++
 4 files changed, 55 insertions(+), 6 deletions(-)
 create mode 100644 compress-videos.sh

diff --git a/README.md b/README.md
index d1741dc..cb7fce9 100644
--- a/README.md
+++ b/README.md
@@ -53,12 +53,24 @@ sudo dd if=build/youtube2.iso of=/dev/sdX bs=4M status=progress
 
 ## Сжатие видео
 
-Для сжатия всех видео в `.av1` формат, используйте эту ffmpeg команду (если у вас изначальный формат не `.mp4` то замените)
+### Сжатие до Full HD
 
-Используйте скрипт `convert-to-av1.sh`:
+Используйте скрипт `compress-videos.sh` для сжатия до Full HD:
+
+```bash
+./compress-videos.sh
+```
+
+Он сожмет все видео в папке `videos/`
+
+### Конвертация в AV1
+
+Используйте скрипт `convert-to-av1.sh` для сжатия в `AV1`:
 
 ```bash
 ./convert-to-av1.sh
 ```
 
-Учтите что формат видео `.av1` поддерживается не везде!
\ No newline at end of file
+Он переконвернирует все видео в папке `videos/`
+
+Этот вариант лучше сжимает видео без потери качества, но минус в том что формат может не везде поддерживаться
\ No newline at end of file
diff --git a/compress-videos.sh b/compress-videos.sh
new file mode 100644
index 0000000..de3cf40
--- /dev/null
+++ b/compress-videos.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+for video_file in videos/*.mp4; do
+    base_name=$(basename "$video_file" .mp4)
+
+    ffmpeg -i "$video_file" \
+        -vf "scale='min(1920,iw)':'min(1080,ih)':force_original_aspect_ratio=decrease" \
+        -c:v libx264 -preset slow -crf 23 \
+        -c:a copy \
+        "videos/${base_name}.compressed.mp4" || exit 1
+
+    for json_file in videos/*.json; do
+        sed -i "s/$base_name.mp4/$base_name.compressed.mp4/g" "$json_file"
+    done
+
+    rm videos/$base_name.mp4
+done
\ No newline at end of file
diff --git a/convert-to-av1.sh b/convert-to-av1.sh
index 75bdc9d..dbcfa3d 100644
--- a/convert-to-av1.sh
+++ b/convert-to-av1.sh
@@ -3,7 +3,19 @@
 for video_file in videos/*.mp4; do
     base_name=$(basename "$video_file" .mp4)
 
-    ffmpeg -i "$video_file" -c:v libaom-av1 -crf 23 -b:v 0 -cpu-used 4 -g 240 -strict -2 "videos/$base_name.av1.mp4" || exit 1
-    
-    mv "videos/$base_name.av1.mp4" "$video_file"
+    codec_check=$(ffmpeg -i "$video_file" 2>&1 | grep -o 'Video: av1')
+    if [[ -n "$codec_check" ]]; then
+        echo "Skipping $video_file as it already AV1 encoded"
+        continue
+    fi
+
+    echo "Converting videos/$base_name.mp4 to videos/$base_name.av1.mp4"
+
+    ffmpeg -i "videos/$base_name.mp4" -c:v libsvtav1 -crf 23 -b:v 0 -cpu-used 4 -g 240 -strict -2 "videos/$base_name.av1.mp4" || exit 1
+
+    for json_file in videos/*.json; do
+        sed -i "s/$base_name.mp4/$base_name.av1.mp4/g" "$json_file"
+    done
+
+    rm videos/$base_name.mp4
 done
\ No newline at end of file
diff --git a/dl-video.sh b/dl-video.sh
index 407e103..9d725b2 100644
--- a/dl-video.sh
+++ b/dl-video.sh
@@ -19,6 +19,14 @@ PREVIEW_FILENAME=$(find videos -type f -iname "${VIDEO_ID}_preview*")
 yt-dlp -f "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best" -o "videos/${VIDEO_ID}_video" "$VIDEO_URL" $ADDITIONAL_ARGS
 VIDEO_FILENAME=$(find videos -type f -iname "${VIDEO_ID}_video*")
 
+# ffmpeg -i "$VIDEO_FILENAME" \
+#   -vf "scale='min(1920,iw)':'min(1080,ih)':force_original_aspect_ratio=decrease" \
+#   -c:v libx264 -preset slow -crf 23 \
+#   -c:a copy \
+#   "videos/${VIDEO_ID}_video_compressed.mp4"
+
+# mv "videos/${VIDEO_ID}_video_compressed.mp4" "$VIDEO_FILENAME"
+
 NAME=$(jq -r '.fulltitle' "videos/${VIDEO_ID}.info.json")
 DESCRIPTION=$(jq -r '.description' "videos/${VIDEO_ID}.info.json")
 CHANNEL_NAME=$(jq -r '.uploader' "videos/${VIDEO_ID}.info.json")