vp9: split out generic decoding skeleton interface API from VP9 types.

This allows vp9dsp.h to only include the VP9 types header, and not the
decoder skeleton interface which is for hardware decoders (dxva2/vaapi).

8 files changed, 178 insertions, 147 deletions

diff --git a/libavcodec/arm/vp9dsp_init_16bpp_arm_template.c b/libavcodec/arm/vp9dsp_init_16bpp_arm_template.c
index 3620535065..1b0007859d 100644
--- a/libavcodec/arm/vp9dsp_init_16bpp_arm_template.c
+++ b/libavcodec/arm/vp9dsp_init_16bpp_arm_template.c
@@ -21,6 +21,7 @@
 #include <stdint.h>
 
 #include "libavutil/attributes.h"
+#include "libavutil/internal.h"
 #include "libavutil/arm/cpu.h"
 #include "vp9dsp_init.h"
 
diff --git a/libavcodec/arm/vp9dsp_init_arm.c b/libavcodec/arm/vp9dsp_init_arm.c
index 4c57fd6ba0..cb7f48d5ca 100644
--- a/libavcodec/arm/vp9dsp_init_arm.c
+++ b/libavcodec/arm/vp9dsp_init_arm.c
@@ -21,6 +21,7 @@
 #include <stdint.h>
 
 #include "libavutil/attributes.h"
+#include "libavutil/internal.h"
 #include "libavutil/arm/cpu.h"
 #include "libavcodec/vp9dsp.h"
 #include "vp9dsp_init.h"
diff --git a/libavcodec/dxva2_vp9.c b/libavcodec/dxva2_vp9.c
index d53b32764a..fd7bd98afd 100644
--- a/libavcodec/dxva2_vp9.c
+++ b/libavcodec/dxva2_vp9.c
@@ -23,7 +23,7 @@
 #include "libavutil/avassert.h"
 #include "libavutil/pixdesc.h"
 
-#include "vp9.h"
+#include "vp9shared.h"
 
 // The headers above may include w32threads.h, which uses the original
 // _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
diff --git a/libavcodec/vaapi_vp9.c b/libavcodec/vaapi_vp9.c
index 7374465d49..d8ece75df4 100644
--- a/libavcodec/vaapi_vp9.c
+++ b/libavcodec/vaapi_vp9.c
@@ -24,7 +24,7 @@
 
 #include "hwaccel.h"
 #include "vaapi_decode.h"
-#include "vp9.h"
+#include "vp9shared.h"
 
 static VASurfaceID vaapi_vp9_surface_id(const VP9Frame *vf)
 {
diff --git a/libavcodec/vp9.h b/libavcodec/vp9.h
index 6d2abaf24e..c8d07ad986 100644
--- a/libavcodec/vp9.h
+++ b/libavcodec/vp9.h
@@ -24,13 +24,6 @@
 #ifndef AVCODEC_VP9_H
 #define AVCODEC_VP9_H
 
-#include <stddef.h>
-#include <stdint.h>
-
-#include "avcodec.h"
-#include "thread.h"
-#include "vp56.h"
-
 enum TxfmMode {
     TX_4X4,
     TX_8X8,
@@ -73,142 +66,8 @@ enum FilterMode {
     FILTER_8TAP_REGULAR,
     FILTER_8TAP_SHARP,
     FILTER_BILINEAR,
-    FILTER_SWITCHABLE,
-};
-
-enum BlockPartition {
-    PARTITION_NONE,    // [ ] <-.
-    PARTITION_H,       // [-]   |
-    PARTITION_V,       // [|]   |
-    PARTITION_SPLIT,   // [+] --'
-};
-
-enum InterPredMode {
-    NEARESTMV = 10,
-    NEARMV    = 11,
-    ZEROMV    = 12,
-    NEWMV     = 13,
-};
-
-enum CompPredMode {
-    PRED_SINGLEREF,
-    PRED_COMPREF,
-    PRED_SWITCHABLE,
+    N_FILTERS,
+    FILTER_SWITCHABLE = N_FILTERS,
 };
 
-typedef struct VP9mvrefPair {
-    VP56mv mv[2];
-    int8_t ref[2];
-} VP9mvrefPair;
-
-typedef struct VP9Frame {
-    ThreadFrame tf;
-    AVBufferRef *extradata;
-    uint8_t *segmentation_map;
-    VP9mvrefPair *mv;
-    int uses_2pass;
-
-    AVBufferRef *hwaccel_priv_buf;
-    void *hwaccel_picture_private;
-} VP9Frame;
-
-enum BlockLevel {
-    BL_64X64,
-    BL_32X32,
-    BL_16X16,
-    BL_8X8,
-};
-
-enum BlockSize {
-    BS_64x64,
-    BS_64x32,
-    BS_32x64,
-    BS_32x32,
-    BS_32x16,
-    BS_16x32,
-    BS_16x16,
-    BS_16x8,
-    BS_8x16,
-    BS_8x8,
-    BS_8x4,
-    BS_4x8,
-    BS_4x4,
-    N_BS_SIZES,
-};
-
-typedef struct VP9BitstreamHeader {
-    // bitstream header
-    uint8_t profile;
-    uint8_t bpp;
-    uint8_t keyframe;
-    uint8_t invisible;
-    uint8_t errorres;
-    uint8_t intraonly;
-    uint8_t resetctx;
-    uint8_t refreshrefmask;
-    uint8_t highprecisionmvs;
-    enum FilterMode filtermode;
-    uint8_t allowcompinter;
-    uint8_t refreshctx;
-    uint8_t parallelmode;
-    uint8_t framectxid;
-    uint8_t use_last_frame_mvs;
-    uint8_t refidx[3];
-    uint8_t signbias[3];
-    uint8_t fixcompref;
-    uint8_t varcompref[2];
-    struct {
-        uint8_t level;
-        int8_t sharpness;
-    } filter;
-    struct {
-        uint8_t enabled;
-        uint8_t updated;
-        int8_t mode[2];
-        int8_t ref[4];
-    } lf_delta;
-    uint8_t yac_qi;
-    int8_t ydc_qdelta, uvdc_qdelta, uvac_qdelta;
-    uint8_t lossless;
-#define MAX_SEGMENT 8
-    struct {
-        uint8_t enabled;
-        uint8_t temporal;
-        uint8_t absolute_vals;
-        uint8_t update_map;
-        uint8_t prob[7];
-        uint8_t pred_prob[3];
-        struct {
-            uint8_t q_enabled;
-            uint8_t lf_enabled;
-            uint8_t ref_enabled;
-            uint8_t skip_enabled;
-            uint8_t ref_val;
-            int16_t q_val;
-            int8_t lf_val;
-            int16_t qmul[2][2];
-            uint8_t lflvl[4][2];
-        } feat[MAX_SEGMENT];
-    } segmentation;
-    enum TxfmMode txfmmode;
-    enum CompPredMode comppredmode;
-    struct {
-        unsigned log2_tile_cols, log2_tile_rows;
-        unsigned tile_cols, tile_rows;
-    } tiling;
-
-    int uncompressed_header_size;
-    int compressed_header_size;
-} VP9BitstreamHeader;
-
-typedef struct VP9SharedContext {
-    VP9BitstreamHeader h;
-
-    ThreadFrame refs[8];
-#define CUR_FRAME 0
-#define REF_FRAME_MVPAIR 1
-#define REF_FRAME_SEGMAP 2
-    VP9Frame frames[3];
-} VP9SharedContext;
-
 #endif /* AVCODEC_VP9_H */
diff --git a/libavcodec/vp9dec.h b/libavcodec/vp9dec.h
index f05e478a4a..4002b3a694 100644
--- a/libavcodec/vp9dec.h
+++ b/libavcodec/vp9dec.h
@@ -32,6 +32,7 @@
 
 #include "vp9.h"
 #include "vp9dsp.h"
+#include "vp9shared.h"
 
 enum MVJoint {
     MV_JOINT_ZERO,
diff --git a/libavcodec/vp9dsp.h b/libavcodec/vp9dsp.h
index d2c48b4d1b..e2256316a8 100644
--- a/libavcodec/vp9dsp.h
+++ b/libavcodec/vp9dsp.h
@@ -111,13 +111,13 @@ typedef struct VP9DSPContext {
      *
      * dst/stride are aligned by hsize
      */
-    vp9_mc_func mc[5][4][2][2][2];
+    vp9_mc_func mc[5][N_FILTERS][2][2][2];
 
     /*
      * for scalable MC, first 3 dimensions identical to above, the other two
      * don't exist since it changes per stepsize.
      */
-    vp9_scaled_mc_func smc[5][4][2];
+    vp9_scaled_mc_func smc[5][N_FILTERS][2];
 } VP9DSPContext;
 
 extern const int16_t ff_vp9_subpel_filters[3][16][8];
diff --git a/libavcodec/vp9shared.h b/libavcodec/vp9shared.h
new file mode 100644
index 0000000000..54726df742
--- /dev/null
+++ b/libavcodec/vp9shared.h
@@ -0,0 +1,169 @@
+/*
+ * VP9 compatible video decoder
+ *
+ * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
+ * Copyright (C) 2013 Clément Bœsch <u pkh me>
+ *
+ * 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
+ */
+
+#ifndef AVCODEC_VP9SHARED_H
+#define AVCODEC_VP9SHARED_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "vp9.h"
+#include "thread.h"
+#include "vp56.h"
+
+enum BlockPartition {
+    PARTITION_NONE,    // [ ] <-.
+    PARTITION_H,       // [-]   |
+    PARTITION_V,       // [|]   |
+    PARTITION_SPLIT,   // [+] --'
+};
+
+enum InterPredMode {
+    NEARESTMV = 10,
+    NEARMV    = 11,
+    ZEROMV    = 12,
+    NEWMV     = 13,
+};
+
+enum CompPredMode {
+    PRED_SINGLEREF,
+    PRED_COMPREF,
+    PRED_SWITCHABLE,
+};
+
+typedef struct VP9mvrefPair {
+    VP56mv mv[2];
+    int8_t ref[2];
+} VP9mvrefPair;
+
+typedef struct VP9Frame {
+    ThreadFrame tf;
+    AVBufferRef *extradata;
+    uint8_t *segmentation_map;
+    VP9mvrefPair *mv;
+    int uses_2pass;
+
+    AVBufferRef *hwaccel_priv_buf;
+    void *hwaccel_picture_private;
+} VP9Frame;
+
+enum BlockLevel {
+    BL_64X64,
+    BL_32X32,
+    BL_16X16,
+    BL_8X8,
+};
+
+enum BlockSize {
+    BS_64x64,
+    BS_64x32,
+    BS_32x64,
+    BS_32x32,
+    BS_32x16,
+    BS_16x32,
+    BS_16x16,
+    BS_16x8,
+    BS_8x16,
+    BS_8x8,
+    BS_8x4,
+    BS_4x8,
+    BS_4x4,
+    N_BS_SIZES,
+};
+
+typedef struct VP9BitstreamHeader {
+    // bitstream header
+    uint8_t profile;
+    uint8_t bpp;
+    uint8_t keyframe;
+    uint8_t invisible;
+    uint8_t errorres;
+    uint8_t intraonly;
+    uint8_t resetctx;
+    uint8_t refreshrefmask;
+    uint8_t highprecisionmvs;
+    enum FilterMode filtermode;
+    uint8_t allowcompinter;
+    uint8_t refreshctx;
+    uint8_t parallelmode;
+    uint8_t framectxid;
+    uint8_t use_last_frame_mvs;
+    uint8_t refidx[3];
+    uint8_t signbias[3];
+    uint8_t fixcompref;
+    uint8_t varcompref[2];
+    struct {
+        uint8_t level;
+        int8_t sharpness;
+    } filter;
+    struct {
+        uint8_t enabled;
+        uint8_t updated;
+        int8_t mode[2];
+        int8_t ref[4];
+    } lf_delta;
+    uint8_t yac_qi;
+    int8_t ydc_qdelta, uvdc_qdelta, uvac_qdelta;
+    uint8_t lossless;
+#define MAX_SEGMENT 8
+    struct {
+        uint8_t enabled;
+        uint8_t temporal;
+        uint8_t absolute_vals;
+        uint8_t update_map;
+        uint8_t prob[7];
+        uint8_t pred_prob[3];
+        struct {
+            uint8_t q_enabled;
+            uint8_t lf_enabled;
+            uint8_t ref_enabled;
+            uint8_t skip_enabled;
+            uint8_t ref_val;
+            int16_t q_val;
+            int8_t lf_val;
+            int16_t qmul[2][2];
+            uint8_t lflvl[4][2];
+        } feat[MAX_SEGMENT];
+    } segmentation;
+    enum TxfmMode txfmmode;
+    enum CompPredMode comppredmode;
+    struct {
+        unsigned log2_tile_cols, log2_tile_rows;
+        unsigned tile_cols, tile_rows;
+    } tiling;
+
+    int uncompressed_header_size;
+    int compressed_header_size;
+} VP9BitstreamHeader;
+
+typedef struct VP9SharedContext {
+    VP9BitstreamHeader h;
+
+    ThreadFrame refs[8];
+#define CUR_FRAME 0
+#define REF_FRAME_MVPAIR 1
+#define REF_FRAME_SEGMAP 2
+    VP9Frame frames[3];
+} VP9SharedContext;
+
+#endif /* AVCODEC_VP9SHARED_H */