From 4c8485ace3c702cf78a3e9f8d0fc20354627f5d8 Mon Sep 17 00:00:00 2001
From: gnattu <gnattuoc@me.com>
Date: Mon, 9 Sep 2024 01:35:09 +0800
Subject: [PATCH] lavc/videotoolbox: allow software fallback for all codecs

Apple disabled hardware decoding for some h264 files with certain
condition and now ffmpeg will error out for such inputs because the
software fallback is disabled. Allow software fallback for all codecs
instead of only for HEVC to workaround this as the error handling
outside ffmpeg would be harder. Allowing software fallback has no
measurable performance impact when the hardware decoder is not
overloaded.
---
 ...0071-allow-vt-sw-decoder-for-every-codec.patch | 15 +++++++++++++++
 debian/patches/series                             |  1 +
 2 files changed, 16 insertions(+)
 create mode 100644 debian/patches/0071-allow-vt-sw-decoder-for-every-codec.patch

diff --git a/debian/patches/0071-allow-vt-sw-decoder-for-every-codec.patch b/debian/patches/0071-allow-vt-sw-decoder-for-every-codec.patch
new file mode 100644
index 00000000000..eda581789e4
--- /dev/null
+++ b/debian/patches/0071-allow-vt-sw-decoder-for-every-codec.patch
@@ -0,0 +1,15 @@
+Index: FFmpeg/libavcodec/videotoolbox.c
+===================================================================
+--- FFmpeg.orig/libavcodec/videotoolbox.c
++++ FFmpeg/libavcodec/videotoolbox.c
+@@ -812,9 +812,7 @@ static CFDictionaryRef videotoolbox_deco
+                                                                    &kCFTypeDictionaryValueCallBacks);
+ 
+     CFDictionarySetValue(config_info,
+-                         codec_type == kCMVideoCodecType_HEVC ?
+-                            kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder :
+-                            kVTVideoDecoderSpecification_RequireHardwareAcceleratedVideoDecoder,
++                         kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder,
+                          kCFBooleanTrue);
+ 
+     avc_info = CFDictionaryCreateMutable(kCFAllocatorDefault,
diff --git a/debian/patches/series b/debian/patches/series
index 673e304d493..a98ff7b05d1 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -68,3 +68,4 @@
 0068-add-pgs-support-to-vulkan-overlay.patch
 0069-add-fixes-x265-build-from-upstream.patch
 0070-fix-yuv420p-to-p01x-unscaled-conversion.patch
+0071-allow-vt-sw-decoder-for-every-codec.patch