Initial commit

Makefile

+all:
+	tar xf libav-12.3.tar.xz
+	patch -Np1 -d libav-12.3 < libav-12.3-new_libx264.patch
+	cd libav-12.3 && ./configure --prefix=/usr --enable-gpl --enable-version3 --enable-nonfree --disable-static --enable-shared --enable-libx264
+	$(MAKE) -C libav-12.3
+	$(MAKE) -C libav-12.3 install
+	rm -rf libav-12.3

libav-12.3-new_libx264.patch

+From: Vladimir Bashkirtsev <vladimir@bashkirtsev.com>
+Date: Sun, 7 Feb 2021 08:41:09 +0000
+Subject: avcodec/libx264: fix compilation with x264 >= 153
+
+avcodec/libx264: fix compilation with x264 >= 153
+
+libav uses very dated libx264. Modern libx264 is needed to avoid incompatibilities
+with modern browsers (which use relative new libx264 with support of current
+levels of H264 standard).
+
+Signed-off-by: Vladimir Bashkirtsev <vladimir@bashkirtsev.com>
+---
+
+diff -uNr libav-12.3/libavcodec/libx264.c libav-12.3-new_libx264/libavcodec/libx264.c
+--- libav-12.3/libavcodec/libx264.c	2018-02-13 07:55:59.000000000 +1030
++++ libav-12.3-new_libx264/libavcodec/libx264.c	2021-02-08 12:20:00.116829209 +1030
+@@ -243,7 +243,11 @@
+ 
+     x264_picture_init( &x4->pic );
+     x4->pic.img.i_csp   = x4->params.i_csp;
++#if X264_BUILD >= 153
++    if (x4->params.i_bitdepth > 8)
++#else
+     if (x264_bit_depth > 8)
++#endif
+         x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH;
+     x4->pic.img.i_plane = 3;
+ 
+@@ -395,6 +399,9 @@
+     x4->params.p_log_private        = avctx;
+     x4->params.i_log_level          = X264_LOG_DEBUG;
+     x4->params.i_csp                = convert_pix_fmt(avctx->pix_fmt);
++#if X264_BUILD >= 153
++    x4->params.i_bitdepth           = av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth;
++#endif
+ 
+     if (avctx->bit_rate) {
+         x4->params.rc.i_bitrate   = avctx->bit_rate / 1000;
+@@ -701,15 +708,40 @@
+     AV_PIX_FMT_NV20,
+     AV_PIX_FMT_NONE
+ };
++static const enum AVPixelFormat pix_fmts_all[] = {
++    AV_PIX_FMT_YUV420P,
++    AV_PIX_FMT_YUVJ420P,
++    AV_PIX_FMT_YUV422P,
++    AV_PIX_FMT_YUVJ422P,
++    AV_PIX_FMT_YUV444P,
++    AV_PIX_FMT_YUVJ444P,
++    AV_PIX_FMT_NV12,
++    AV_PIX_FMT_NV16,
++#ifdef X264_CSP_NV21
++    AV_PIX_FMT_NV21,
++#endif
++    AV_PIX_FMT_YUV420P10,
++    AV_PIX_FMT_YUV422P10,
++    AV_PIX_FMT_YUV444P10,
++    AV_PIX_FMT_NV20,
++#ifdef X264_CSP_I400
++    AV_PIX_FMT_GRAY8,
++#endif
++    AV_PIX_FMT_NONE
++};
+ 
+ static av_cold void X264_init_static(AVCodec *codec)
+ {
++#if X264_BUILD < 153
+     if (x264_bit_depth == 8)
+         codec->pix_fmts = pix_fmts_8bit;
+     else if (x264_bit_depth == 9)
+         codec->pix_fmts = pix_fmts_9bit;
+     else if (x264_bit_depth == 10)
+         codec->pix_fmts = pix_fmts_10bit;
++#else
++    codec->pix_fmts = pix_fmts_all;
++#endif
+ }
+ 
+ #define OFFSET(x) offsetof(X264Context, x)