— Update ffmpeg

— Refactor ffmpeg usage to modern APIs
— Update media encoding and decoding

submodules/ffmpeg/Sources/FFMpeg/ffmpeg-7.1/libavcodec/riscv/bswapdsp_init.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright © 2022 Rémi Denis-Courmont.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdint.h>
+
+#include "config.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavcodec/bswapdsp.h"
+
+void ff_bswap32_buf_rvb(uint32_t *dst, const uint32_t *src, int len);
+void ff_bswap16_buf_rvv(uint16_t *dst, const uint16_t *src, int len);
+void ff_bswap32_buf_rvvb(uint32_t *dst, const uint32_t *src, int len);
+void ff_bswap16_buf_rvvb(uint16_t *dst, const uint16_t *src, int len);
+
+av_cold void ff_bswapdsp_init_riscv(BswapDSPContext *c)
+{
+#if HAVE_RV
+    int flags = av_get_cpu_flags();
+
+#if (__riscv_xlen >= 64)
+    if (flags & AV_CPU_FLAG_RVB_BASIC)
+        c->bswap_buf = ff_bswap32_buf_rvb;
+#endif
+#if HAVE_RVV
+    if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB)) {
+        c->bswap16_buf = ff_bswap16_buf_rvv;
+#if HAVE_RV_ZVBB
+        if (flags & AV_CPU_FLAG_RV_ZVBB) {
+            c->bswap_buf = ff_bswap32_buf_rvvb;
+            c->bswap16_buf = ff_bswap16_buf_rvvb;
+        }
+#endif
+    }
+#endif
+#endif
+}