adding ffmpeg specific version

1 files changed, 52 insertions, 0 deletions

diff --git a/ffmpeg1/libavcodec/arm/mpegvideo_arm.c b/ffmpeg1/libavcodec/arm/mpegvideo_arm.c
new file mode 100644
index 0000000..6566798
--- /dev/null
+++ b/ffmpeg1/libavcodec/arm/mpegvideo_arm.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2002 Michael Niedermayer
+ *
+ * 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 "libavutil/arm/cpu.h"
+#include "libavcodec/avcodec.h"
+#include "libavcodec/mpegvideo.h"
+#include "mpegvideo_arm.h"
+#include "asm-offsets.h"
+
+#if HAVE_NEON
+CHK_OFFS(MpegEncContext, y_dc_scale,       Y_DC_SCALE);
+CHK_OFFS(MpegEncContext, c_dc_scale,       C_DC_SCALE);
+CHK_OFFS(MpegEncContext, ac_pred,          AC_PRED);
+CHK_OFFS(MpegEncContext, block_last_index, BLOCK_LAST_INDEX);
+CHK_OFFS(MpegEncContext, inter_scantable.raster_end, INTER_SCANTAB_RASTER_END);
+CHK_OFFS(MpegEncContext, h263_aic,         H263_AIC);
+#endif
+
+void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, int16_t *block,
+                                       int n, int qscale);
+void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, int16_t *block,
+                                       int n, int qscale);
+
+av_cold void ff_MPV_common_init_arm(MpegEncContext *s)
+{
+    int cpu_flags = av_get_cpu_flags();
+
+    if (have_armv5te(cpu_flags))
+        ff_MPV_common_init_armv5te(s);
+
+    if (have_neon(cpu_flags)) {
+        s->dct_unquantize_h263_intra = ff_dct_unquantize_h263_intra_neon;
+        s->dct_unquantize_h263_inter = ff_dct_unquantize_h263_inter_neon;
+    }
+}