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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
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