adapt scripts for new ffmpeg

clean_ffmpeg.sh

@@ -138,6 +138,7 @@ header_files="	libavcodec/x86/inline_asm.h \
 		libavcodec/pixels.h \
 		libavcodec/png.h \
 		libavcodec/pngdsp.h \
+		libavcodec/progressframe.h \
 		libavcodec/put_bits.h \
 		libavcodec/qpeldsp.h \
 		libavcodec/ratecontrol.h \

ffmpeg-clean.patch

@@ -1,10 +1,13 @@
 diff -up third_party/ffmpeg/ffmpeg_generated.gni.me third_party/ffmpeg/ffmpeg_generated.gni
---- third_party/ffmpeg/ffmpeg_generated.gni.me	2024-05-05 00:45:53.017100841 +0200
-+++ third_party/ffmpeg/ffmpeg_generated.gni	2024-05-05 00:46:20.244559951 +0200
-@@ -17,8 +17,8 @@ use_linux_config = is_linux || is_chrome
- if ((is_android && current_cpu == "arm" && arm_use_neon) ||
-     (is_android && current_cpu == "arm64") ||
-     (is_android && current_cpu == "x64") ||
+--- third_party/ffmpeg/ffmpeg_generated.gni.me	2024-07-19 23:49:33.776963768 +0200
++++ third_party/ffmpeg/ffmpeg_generated.gni	2024-07-19 23:50:14.377819007 +0200
+@@ -14,10 +14,10 @@ ffmpeg_asm_sources = []
+ 
+ use_linux_config = is_linux || is_chromeos || is_fuchsia
+ 
+-if (current_cpu == "arm64" || current_cpu == "x64" ||
++if ((current_cpu == "arm64") || (current_cpu == "x64") ||
+     (is_android && current_cpu == "arm" && arm_use_neon) ||
 -    (is_android && current_cpu == "x86") || is_apple || is_win ||
 -    use_linux_config) {
 +    (is_android && current_cpu == "x86") || (is_apple) || (is_win) ||