Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / libavcodec / bytestream.h
index d315e3f..cba2dbb 100644 (file)
@@ -24,6 +24,7 @@
 #define AVCODEC_BYTESTREAM_H
 
 #include <string.h>
+
 #include "libavutil/common.h"
 #include "libavutil/intreadwrite.h"
 
@@ -36,46 +37,52 @@ typedef struct {
     int eof;
 } PutByteContext;
 
-#define DEF_T(type, name, bytes, read, write)                             \
-static av_always_inline type bytestream_get_ ## name(const uint8_t **b){\
-    (*b) += bytes;\
-    return read(*b - bytes);\
-}\
-static av_always_inline void bytestream_put_ ##name(uint8_t **b, const type value){\
-    write(*b, value);\
-    (*b) += bytes;\
-}\
-static av_always_inline void bytestream2_put_ ## name ## u(PutByteContext *p, const type value)\
-{\
-    bytestream_put_ ## name(&p->buffer, value);\
-}\
-static av_always_inline void bytestream2_put_ ## name(PutByteContext *p, const type value){\
-    if (!p->eof && (p->buffer_end - p->buffer >= bytes)) {\
-        write(p->buffer, value);\
-        p->buffer += bytes;\
-    } else\
-        p->eof = 1;\
-}\
-static av_always_inline type bytestream2_get_ ## name ## u(GetByteContext *g)\
-{\
-    return bytestream_get_ ## name(&g->buffer);\
-}\
-static av_always_inline type bytestream2_get_ ## name(GetByteContext *g)\
-{\
-    if (g->buffer_end - g->buffer < bytes)\
-        return 0;\
-    return bytestream2_get_ ## name ## u(g);\
-}\
-static av_always_inline type bytestream2_peek_ ## name(GetByteContext *g)\
-{\
-    if (g->buffer_end - g->buffer < bytes)\
-        return 0;\
-    return read(g->buffer);\
+#define DEF_T(type, name, bytes, read, write)                                  \
+static av_always_inline type bytestream_get_ ## name(const uint8_t **b)        \
+{                                                                              \
+    (*b) += bytes;                                                             \
+    return read(*b - bytes);                                                   \
+}                                                                              \
+static av_always_inline void bytestream_put_ ## name(uint8_t **b,              \
+                                                     const type value)         \
+{                                                                              \
+    write(*b, value);                                                          \
+    (*b) += bytes;                                                             \
+}                                                                              \
+static av_always_inline void bytestream2_put_ ## name ## u(PutByteContext *p,  \
+                                                           const type value)   \
+{                                                                              \
+    bytestream_put_ ## name(&p->buffer, value);                                \
+}                                                                              \
+static av_always_inline void bytestream2_put_ ## name(PutByteContext *p,       \
+                                                      const type value)        \
+{                                                                              \
+    if (!p->eof && (p->buffer_end - p->buffer >= bytes)) {                     \
+        write(p->buffer, value);                                               \
+        p->buffer += bytes;                                                    \
+    } else                                                                     \
+        p->eof = 1;                                                            \
+}                                                                              \
+static av_always_inline type bytestream2_get_ ## name ## u(GetByteContext *g)  \
+{                                                                              \
+    return bytestream_get_ ## name(&g->buffer);                                \
+}                                                                              \
+static av_always_inline type bytestream2_get_ ## name(GetByteContext *g)       \
+{                                                                              \
+    if (g->buffer_end - g->buffer < bytes)                                     \
+        return 0;                                                              \
+    return bytestream2_get_ ## name ## u(g);                                   \
+}                                                                              \
+static av_always_inline type bytestream2_peek_ ## name(GetByteContext *g)      \
+{                                                                              \
+    if (g->buffer_end - g->buffer < bytes)                                     \
+        return 0;                                                              \
+    return read(g->buffer);                                                    \
 }
 
-#define DEF(name, bytes, read, write) \
+#define DEF(name, bytes, read, write)                                          \
     DEF_T(unsigned int, name, bytes, read, write)
-#define DEF64(name, bytes, read, write) \
+#define DEF64(name, bytes, read, write)                                        \
     DEF_T(uint64_t, name, bytes, read, write)
 
 DEF64(le64, 8, AV_RL64, AV_WL64)
@@ -129,15 +136,17 @@ DEF  (byte, 1, AV_RB8 , AV_WB8 )
 #endif
 
 static av_always_inline void bytestream2_init(GetByteContext *g,
-                                              const uint8_t *buf, int buf_size)
+                                              const uint8_t *buf,
+                                              int buf_size)
 {
-    g->buffer  buf;
+    g->buffer       = buf;
     g->buffer_start = buf;
-    g->buffer_end = buf + buf_size;
+    g->buffer_end   = buf + buf_size;
 }
 
 static av_always_inline void bytestream2_init_writer(PutByteContext *p,
-                                                     uint8_t *buf, int buf_size)
+                                                     uint8_t *buf,
+                                                     int buf_size)
 {
     p->buffer       = buf;
     p->buffer_start = buf;
@@ -183,21 +192,22 @@ static av_always_inline int bytestream2_tell_p(PutByteContext *p)
     return (int)(p->buffer - p->buffer_start);
 }
 
-static av_always_inline int bytestream2_seek(GetByteContext *g, int offset,
+static av_always_inline int bytestream2_seek(GetByteContext *g,
+                                             int offset,
                                              int whence)
 {
     switch (whence) {
     case SEEK_CUR:
-        offset = av_clip(offset, -(g->buffer - g->buffer_start),
-                         g->buffer_end - g->buffer);
+        offset     = av_clip(offset, -(g->buffer - g->buffer_start),
+                             g->buffer_end - g->buffer);
         g->buffer += offset;
         break;
     case SEEK_END:
-        offset = av_clip(offset, -(g->buffer_end - g->buffer_start), 0);
+        offset    = av_clip(offset, -(g->buffer_end - g->buffer_start), 0);
         g->buffer = g->buffer_end + offset;
         break;
     case SEEK_SET:
-        offset = av_clip(offset, 0, g->buffer_end - g->buffer_start);
+        offset    = av_clip(offset, 0, g->buffer_end - g->buffer_start);
         g->buffer = g->buffer_start + offset;
         break;
     default:
@@ -206,7 +216,8 @@ static av_always_inline int bytestream2_seek(GetByteContext *g, int offset,
     return bytestream2_tell(g);
 }
 
-static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset,
+static av_always_inline int bytestream2_seek_p(PutByteContext *p,
+                                               int offset,
                                                int whence)
 {
     p->eof = 0;
@@ -214,20 +225,20 @@ static av_always_inline int bytestream2_seek_p(PutByteContext *p, int offset,
     case SEEK_CUR:
         if (p->buffer_end - p->buffer < offset)
             p->eof = 1;
-        offset = av_clip(offset, -(p->buffer - p->buffer_start),
-                         p->buffer_end - p->buffer);
+        offset     = av_clip(offset, -(p->buffer - p->buffer_start),
+                             p->buffer_end - p->buffer);
         p->buffer += offset;
         break;
     case SEEK_END:
         if (offset > 0)
             p->eof = 1;
-        offset = av_clip(offset, -(p->buffer_end - p->buffer_start), 0);
+        offset    = av_clip(offset, -(p->buffer_end - p->buffer_start), 0);
         p->buffer = p->buffer_end + offset;
         break;
     case SEEK_SET:
         if (p->buffer_end - p->buffer_start < offset)
             p->eof = 1;
-        offset = av_clip(offset, 0, p->buffer_end - p->buffer_start);
+        offset    = av_clip(offset, 0, p->buffer_end - p->buffer_start);
         p->buffer = p->buffer_start + offset;
         break;
     default:
@@ -280,14 +291,18 @@ static av_always_inline unsigned int bytestream2_get_eof(PutByteContext *p)
     return p->eof;
 }
 
-static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b, uint8_t *dst, unsigned int size)
+static av_always_inline unsigned int bytestream_get_buffer(const uint8_t **b,
+                                                           uint8_t *dst,
+                                                           unsigned int size)
 {
     memcpy(dst, *b, size);
     (*b) += size;
     return size;
 }
 
-static av_always_inline void bytestream_put_buffer(uint8_t **b, const uint8_t *src, unsigned int size)
+static av_always_inline void bytestream_put_buffer(uint8_t **b,
+                                                   const uint8_t *src,
+                                                   unsigned int size)
 {
     memcpy(*b, src, size);
     (*b) += size;