xdcam hd422 720p24 fourcc in mov

[ffmpeg] / libavcodec / vp56.h

diff --git a/libavcodec/vp56.h b/libavcodec/vp56.h
index 1eacdc2158c6488605a2d6cfba1dc63c8a4b9f16..da6b1b64b8ae2b58f111c1e1a1509d699b9463aa 100644 (file)
--- a/libavcodec/vp56.h
+++ b/libavcodec/vp56.h
@@ -170,30 +170,23 @@ struct vp56_context {
 };
 
 
-void vp56_init(AVCodecContext *avctx, int flip, int has_alpha);
-int vp56_free(AVCodecContext *avctx);
-void vp56_init_dequant(VP56Context *s, int quantizer);
-int vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
-                      AVPacket *avpkt);
+void ff_vp56_init(AVCodecContext *avctx, int flip, int has_alpha);
+int ff_vp56_free(AVCodecContext *avctx);
+void ff_vp56_init_dequant(VP56Context *s, int quantizer);
+int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+                         AVPacket *avpkt);
 
 
 /**
  * vp56 specific range coder implementation
  */
 
-static inline void vp56_init_range_decoder(VP56RangeCoder *c,
-                                           const uint8_t *buf, int buf_size)
-{
-    c->high = 255;
-    c->bits = -8;
-    c->buffer = buf;
-    c->end = buf + buf_size;
-    c->code_word = bytestream_get_be16(&c->buffer);
-}
+extern const uint8_t ff_vp56_norm_shift[256];
+void ff_vp56_init_range_decoder(VP56RangeCoder *c, const uint8_t *buf, int buf_size);
 
 static av_always_inline unsigned int vp56_rac_renorm(VP56RangeCoder *c)
 {
-    int shift = ff_h264_norm_shift[c->high] - 1;
+    int shift = ff_vp56_norm_shift[c->high];
     int bits = c->bits;
     unsigned int code_word = c->code_word;
 
@@ -201,8 +194,8 @@ static av_always_inline unsigned int vp56_rac_renorm(VP56RangeCoder *c)
     code_word <<= shift;
     bits       += shift;
     if(bits >= 0 && c->buffer < c->end) {
-        code_word |= *c->buffer++ << bits;
-        bits -= 8;
+        code_word |= bytestream_get_be16(&c->buffer) << bits;
+        bits -= 16;
     }
     c->bits = bits;
     return code_word;
@@ -214,11 +207,11 @@ static av_always_inline unsigned int vp56_rac_renorm(VP56RangeCoder *c)
 
 #ifndef vp56_rac_get_prob
 #define vp56_rac_get_prob vp56_rac_get_prob
-static inline int vp56_rac_get_prob(VP56RangeCoder *c, uint8_t prob)
+static av_always_inline int vp56_rac_get_prob(VP56RangeCoder *c, uint8_t prob)
 {
     unsigned int code_word = vp56_rac_renorm(c);
     unsigned int low = 1 + (((c->high - 1) * prob) >> 8);
-    unsigned int low_shift = low << 8;
+    unsigned int low_shift = low << 16;
     int bit = code_word >= low_shift;
 
     c->high = bit ? c->high - low : low;
@@ -233,7 +226,7 @@ static av_always_inline int vp56_rac_get_prob_branchy(VP56RangeCoder *c, int pro
 {
     unsigned long code_word = vp56_rac_renorm(c);
     unsigned low = 1 + (((c->high - 1) * prob) >> 8);
-    unsigned low_shift = low << 8;
+    unsigned low_shift = low << 16;
 
     if (code_word >= low_shift) {
         c->high     -= low;
@@ -246,12 +239,12 @@ static av_always_inline int vp56_rac_get_prob_branchy(VP56RangeCoder *c, int pro
     return 0;
 }
 
-static inline int vp56_rac_get(VP56RangeCoder *c)
+static av_always_inline int vp56_rac_get(VP56RangeCoder *c)
 {
     unsigned int code_word = vp56_rac_renorm(c);
     /* equiprobable */
     int low = (c->high + 1) >> 1;
-    unsigned int low_shift = low << 8;
+    unsigned int low_shift = low << 16;
     int bit = code_word >= low_shift;
     if (bit) {
         c->high   -= low;
@@ -265,12 +258,12 @@ static inline int vp56_rac_get(VP56RangeCoder *c)
 }
 
 // rounding is different than vp56_rac_get, is vp56_rac_get wrong?
-static inline int vp8_rac_get(VP56RangeCoder *c)
+static av_always_inline int vp8_rac_get(VP56RangeCoder *c)
 {
     return vp56_rac_get_prob(c, 128);
 }
 
-static inline int vp56_rac_gets(VP56RangeCoder *c, int bits)
+static av_unused int vp56_rac_gets(VP56RangeCoder *c, int bits)
 {
     int value = 0;
 
@@ -281,7 +274,7 @@ static inline int vp56_rac_gets(VP56RangeCoder *c, int bits)
     return value;
 }
 
-static inline int vp8_rac_get_uint(VP56RangeCoder *c, int bits)
+static av_unused int vp8_rac_get_uint(VP56RangeCoder *c, int bits)
 {
     int value = 0;
 
@@ -293,7 +286,7 @@ static inline int vp8_rac_get_uint(VP56RangeCoder *c, int bits)
 }
 
 // fixme: add 1 bit to all the calls to this?
-static inline int vp8_rac_get_sint(VP56RangeCoder *c, int bits)
+static av_unused int vp8_rac_get_sint(VP56RangeCoder *c, int bits)
 {
     int v;
 
@@ -309,21 +302,22 @@ static inline int vp8_rac_get_sint(VP56RangeCoder *c, int bits)
 }
 
 // P(7)
-static inline int vp56_rac_gets_nn(VP56RangeCoder *c, int bits)
+static av_unused int vp56_rac_gets_nn(VP56RangeCoder *c, int bits)
 {
     int v = vp56_rac_gets(c, 7) << 1;
     return v + !v;
 }
 
-static inline int vp8_rac_get_nn(VP56RangeCoder *c)
+static av_unused int vp8_rac_get_nn(VP56RangeCoder *c)
 {
     int v = vp8_rac_get_uint(c, 7) << 1;
     return v + !v;
 }
 
-static inline int vp56_rac_get_tree(VP56RangeCoder *c,
-                                    const VP56Tree *tree,
-                                    const uint8_t *probs)
+static av_always_inline
+int vp56_rac_get_tree(VP56RangeCoder *c,
+                      const VP56Tree *tree,
+                      const uint8_t *probs)
 {
     while (tree->val > 0) {
         if (vp56_rac_get_prob(c, probs[tree->prob_idx]))
@@ -339,8 +333,9 @@ static inline int vp56_rac_get_tree(VP56RangeCoder *c,
  * on a node other than the root node, needed for coeff decode where this is
  * used to save a bit after a 0 token (by disallowing EOB to immediately follow.)
  */
-static inline int vp8_rac_get_tree_with_offset(VP56RangeCoder *c, const int8_t (*tree)[2],
-                                               const uint8_t *probs, int i)
+static av_always_inline
+int vp8_rac_get_tree_with_offset(VP56RangeCoder *c, const int8_t (*tree)[2],
+                                 const uint8_t *probs, int i)
 {
     do {
         i = tree[i][vp56_rac_get_prob(c, probs[i])];
@@ -351,14 +346,15 @@ static inline int vp8_rac_get_tree_with_offset(VP56RangeCoder *c, const int8_t (
 
 // how probabilities are associated with decisions is different I think
 // well, the new scheme fits in the old but this way has one fewer branches per decision
-static inline int vp8_rac_get_tree(VP56RangeCoder *c, const int8_t (*tree)[2],
-                                   const uint8_t *probs)
+static av_always_inline
+int vp8_rac_get_tree(VP56RangeCoder *c, const int8_t (*tree)[2],
+                     const uint8_t *probs)
 {
     return vp8_rac_get_tree_with_offset(c, tree, probs, 0);
 }
 
 // DCTextra
-static inline int vp8_rac_get_coeff(VP56RangeCoder *c, const uint8_t *prob)
+static av_always_inline int vp8_rac_get_coeff(VP56RangeCoder *c, const uint8_t *prob)
 {
     int v = 0;