avcodec/mips: [loongson] optimize theora decoding in vp3dsp.

Optimize theora decoding with msa in functions:
1. ff_vp3_idct_add_msa
2. ff_vp3_idct_put_msa
3. ff_vp3_idct_dc_add_msa
4. ff_vp3_v_loop_filter_msa
5. ff_vp3_h_loop_filter_msa
6. ff_put_no_rnd_pixels_l2_msa

Theora decoding speed improved about 36%(from 22fps to 30fps, Tested on loongson 2K1000).

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 46 insertions, 0 deletions

diff --git a/libavcodec/mips/vp3dsp_init_mips.c b/libavcodec/mips/vp3dsp_init_mips.c
new file mode 100644
index 0000000000..d72e8ece71
--- /dev/null
+++ b/libavcodec/mips/vp3dsp_init_mips.c
@@ -0,0 +1,46 @@
+
+/*
+ * Copyright (c) 2018 gxw <guxiwei-hf@loongson.cn>
+ *
+ * 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 "config.h"
+#include "libavutil/attributes.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/vp3dsp.h"
+#include "vp3dsp_mips.h"
+
+#if HAVE_MSA
+static av_cold void vp3dsp_init_msa(VP3DSPContext *c, int flags)
+{
+    c->put_no_rnd_pixels_l2 = ff_put_no_rnd_pixels_l2_msa;
+
+    c->idct_add      = ff_vp3_idct_add_msa;
+    c->idct_put      = ff_vp3_idct_put_msa;
+    c->idct_dc_add   = ff_vp3_idct_dc_add_msa;
+    c->v_loop_filter = ff_vp3_v_loop_filter_msa;
+    c->h_loop_filter = ff_vp3_h_loop_filter_msa;
+}
+#endif /* HAVE_MSA */
+
+av_cold void ff_vp3dsp_init_mips(VP3DSPContext *c, int flags)
+{
+#if HAVE_MSA
+    vp3dsp_init_msa(c, flags);
+#endif /* HAVE_MSA */
+}