diff options
Diffstat (limited to 'gnu/packages')
| -rw-r--r-- | gnu/packages/patches/ffmpeg-prefer-dav1d.patch | 43 | ||||
| -rw-r--r-- | gnu/packages/video.scm | 2 |
2 files changed, 45 insertions, 0 deletions
diff --git a/gnu/packages/patches/ffmpeg-prefer-dav1d.patch b/gnu/packages/patches/ffmpeg-prefer-dav1d.patch new file mode 100644 index 0000000000..95e3712a7f --- /dev/null +++ b/gnu/packages/patches/ffmpeg-prefer-dav1d.patch @@ -0,0 +1,43 @@ +When decoding AV1 files, prefer dav1d over libaom for performance +reasons. + +Patch copied from upstream source repository: + +<https://git.videolan.org/gitweb.cgi/ffmpeg.git/?p=ffmpeg.git;a=commitdiff;h=dc0806dd25882f41f6085c8356712f95fded56c7> + +From dc0806dd25882f41f6085c8356712f95fded56c7 Mon Sep 17 00:00:00 2001 +From: James Almer <jamrial@gmail.com> +Date: Sun, 15 Sep 2019 11:29:56 -0300 +Subject: [PATCH] avcodec/allcodecs: make libdav1d the preferred AV1 decoder + +It's considerably faster than libaom in most systems. + +Reviewed-by: BBB +Signed-off-by: James Almer <jamrial@gmail.com> +--- + libavcodec/allcodecs.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c +index 5130fca026..d5dfba1877 100644 +--- a/libavcodec/allcodecs.c ++++ b/libavcodec/allcodecs.c +@@ -680,7 +680,6 @@ extern AVCodec ff_pcm_mulaw_at_encoder; + extern AVCodec ff_pcm_mulaw_at_decoder; + extern AVCodec ff_qdmc_at_decoder; + extern AVCodec ff_qdm2_at_decoder; +-extern AVCodec ff_libaom_av1_decoder; + extern AVCodec ff_libaom_av1_encoder; + extern AVCodec ff_libaribb24_decoder; + extern AVCodec ff_libcelt_decoder; +@@ -738,6 +737,7 @@ extern AVCodec ff_idf_decoder; + /* external libraries, that shouldn't be used by default if one of the + * above is available */ + extern AVCodec ff_h263_v4l2m2m_encoder; ++extern AVCodec ff_libaom_av1_decoder; + extern AVCodec ff_libopenh264_encoder; + extern AVCodec ff_libopenh264_decoder; + extern AVCodec ff_h264_amf_encoder; +-- +2.20.1 + diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm index 0c245ece6e..d0c35e8e77 100644 --- a/gnu/packages/video.scm +++ b/gnu/packages/video.scm @@ -922,6 +922,8 @@ operate properly.") (method url-fetch) (uri (string-append "https://ffmpeg.org/releases/ffmpeg-" version ".tar.xz")) + ;; See <https://issues.guix.gnu.org/issue/39719> + (patches (search-patches "ffmpeg-prefer-dav1d.patch")) (sha256 (base32 "176jn1lcdf0gk7sa5l2mv0faqp5dsqdhx1gqcrgymqhfmdal4xfb")))) |