dsputil: Split off FDCT bits into their own context

5 files changed, 52 insertions, 14 deletions

diff --git a/libavcodec/ppc/Makefile b/libavcodec/ppc/Makefile
index 256c081dc1..5118b9e6c4 100644
--- a/libavcodec/ppc/Makefile
+++ b/libavcodec/ppc/Makefile
@@ -9,6 +9,7 @@ OBJS-$(CONFIG_H264DSP)                 += ppc/h264dsp.o
 OBJS-$(CONFIG_H264QPEL)                += ppc/h264qpel.o
 OBJS-$(CONFIG_HPELDSP)                 += ppc/hpeldsp_altivec.o
 OBJS-$(CONFIG_HUFFYUVDSP)              += ppc/huffyuvdsp_altivec.o
+OBJS-$(CONFIG_FDCTDSP)                 += ppc/fdctdsp.o
 OBJS-$(CONFIG_IDCTDSP)                 += ppc/idctdsp.o
 OBJS-$(CONFIG_MPEGAUDIODSP)            += ppc/mpegaudiodsp_altivec.o
 OBJS-$(CONFIG_MPEGVIDEO)               += ppc/mpegvideo_altivec.o      \
@@ -25,7 +26,6 @@ OBJS-$(CONFIG_VP7_DECODER)             += ppc/vp8dsp_altivec.o
 OBJS-$(CONFIG_VP8_DECODER)             += ppc/vp8dsp_altivec.o
 
 ALTIVEC-OBJS-$(CONFIG_DSPUTIL)         += ppc/dsputil_altivec.o         \
-                                          ppc/fdct_altivec.o            \
 
 FFT-OBJS-$(HAVE_GNU_AS)                += ppc/fft_altivec_s.o
 ALTIVEC-OBJS-$(CONFIG_FFT)             += $(FFT-OBJS-yes)
diff --git a/libavcodec/ppc/dsputil_altivec.h b/libavcodec/ppc/dsputil_altivec.h
index be5fd58669..bbf9a9d5b7 100644
--- a/libavcodec/ppc/dsputil_altivec.h
+++ b/libavcodec/ppc/dsputil_altivec.h
@@ -27,8 +27,6 @@
 
 #include "libavcodec/dsputil.h"
 
-void ff_fdct_altivec(int16_t *block);
-
 void ff_dsputil_init_altivec(DSPContext *c, AVCodecContext *avctx,
                              unsigned high_bit_depth);
 
diff --git a/libavcodec/ppc/dsputil_ppc.c b/libavcodec/ppc/dsputil_ppc.c
index b54111310e..890157fc1c 100644
--- a/libavcodec/ppc/dsputil_ppc.c
+++ b/libavcodec/ppc/dsputil_ppc.c
@@ -34,14 +34,5 @@ av_cold void ff_dsputil_init_ppc(DSPContext *c, AVCodecContext *avctx,
 {
     if (PPC_ALTIVEC(av_get_cpu_flags())) {
         ff_dsputil_init_altivec(c, avctx, high_bit_depth);
-
-        if (!high_bit_depth) {
-#if CONFIG_ENCODERS
-            if (avctx->dct_algo == FF_DCT_AUTO ||
-                avctx->dct_algo == FF_DCT_ALTIVEC) {
-                c->fdct = ff_fdct_altivec;
-            }
-#endif //CONFIG_ENCODERS
-        }
     }
 }
diff --git a/libavcodec/ppc/fdct_altivec.c b/libavcodec/ppc/fdctdsp.c
index 8914d9bf9b..d7b5b7ab7c 100644
--- a/libavcodec/ppc/fdct_altivec.c
+++ b/libavcodec/ppc/fdctdsp.c
@@ -23,8 +23,13 @@
 #include <altivec.h>
 #endif
 
-#include "libavutil/common.h"
-#include "dsputil_altivec.h"
+#include "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/ppc/cpu.h"
+#include "libavcodec/fdctdsp.h"
+#include "fdctdsp.h"
+
+#if HAVE_ALTIVEC
 
 #define vs16(v)   ((vector signed short) (v))
 #define vs32(v)     ((vector signed int) (v))
@@ -454,3 +459,21 @@ void ff_fdct_altivec(int16_t *block)
 #undef CTS
     /* }}} */
 }
+
+#endif /* HAVE_ALTIVEC */
+
+av_cold void ff_fdctdsp_init_ppc(FDCTDSPContext *c, AVCodecContext *avctx,
+                                 unsigned high_bit_depth)
+{
+#if HAVE_ALTIVEC
+    if (!PPC_ALTIVEC(av_get_cpu_flags()))
+        return;
+
+    if (!high_bit_depth) {
+        if (avctx->dct_algo == FF_DCT_AUTO ||
+            avctx->dct_algo == FF_DCT_ALTIVEC) {
+            c->fdct = ff_fdct_altivec;
+        }
+    }
+#endif /* HAVE_ALTIVEC */
+}
diff --git a/libavcodec/ppc/fdctdsp.h b/libavcodec/ppc/fdctdsp.h
new file mode 100644
index 0000000000..845b4fe554
--- /dev/null
+++ b/libavcodec/ppc/fdctdsp.h
@@ -0,0 +1,26 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PPC_FDCTDSP_H
+#define AVCODEC_PPC_FDCTDSP_H
+
+#include <stdint.h>
+
+void ff_fdct_altivec(int16_t *block);
+
+#endif /* AVCODEC_PPC_FDCTDSP_H */