avformat/avformat: Constify AVFormatContext.*_codec pointers

[ffmpeg] / libavcodec / put_bits.h

diff --git a/libavcodec/put_bits.h b/libavcodec/put_bits.h
index d7eaa1792e7861a304ff3d1f961b6da43f2e784a..689c6b282ef50b95229944cf5f6b00b65a606c69 100644 (file)
--- a/libavcodec/put_bits.h
+++ b/libavcodec/put_bits.h
@@ -33,8 +33,6 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/avassert.h"
 
-#include "version.h"
-
 #if ARCH_X86_64
 // TODO: Benchmark and optionally enable on other 64-bit architectures.
 typedef uint64_t BitBuf;
@@ -52,7 +50,6 @@ typedef struct PutBitContext {
     BitBuf bit_buf;
     int bit_left;
     uint8_t *buf, *buf_ptr, *buf_end;
-    int size_in_bits;
 } PutBitContext;
 
 /**
@@ -69,7 +66,6 @@ static inline void init_put_bits(PutBitContext *s, uint8_t *buffer,
         buffer      = NULL;
     }
 
-    s->size_in_bits = 8 * buffer_size;
     s->buf          = buffer;
     s->buf_end      = s->buf + buffer_size;
     s->buf_ptr      = s->buf;
@@ -85,6 +81,26 @@ static inline int put_bits_count(PutBitContext *s)
     return (s->buf_ptr - s->buf) * 8 + BUF_BITS - s->bit_left;
 }
 
+/**
+ * @return the number of bytes output so far; may only be called
+ *         when the PutBitContext is freshly initialized or flushed.
+ */
+static inline int put_bytes_output(const PutBitContext *s)
+{
+    av_assert2(s->bit_left == BUF_BITS);
+    return s->buf_ptr - s->buf;
+}
+
+/**
+ * @param  round_up  When set, the number of bits written so far will be
+ *                   rounded up to the next byte.
+ * @return the number of bytes output so far.
+ */
+static inline int put_bytes_count(const PutBitContext *s, int round_up)
+{
+    return s->buf_ptr - s->buf + ((BUF_BITS - s->bit_left + (round_up ? 7 : 0)) >> 3);
+}
+
 /**
  * Rebase the bit writer onto a reallocated buffer.
  *
@@ -100,7 +116,6 @@ static inline void rebase_put_bits(PutBitContext *s, uint8_t *buffer,
     s->buf_end = buffer + buffer_size;
     s->buf_ptr = buffer + (s->buf_ptr - s->buf);
     s->buf     = buffer;
-    s->size_in_bits = 8 * buffer_size;
 }
 
 /**
@@ -111,6 +126,16 @@ static inline int put_bits_left(PutBitContext* s)
     return (s->buf_end - s->buf_ptr) * 8 - BUF_BITS + s->bit_left;
 }
 
+/**
+ * @param  round_up  When set, the number of bits written will be
+ *                   rounded up to the next byte.
+ * @return the number of bytes left.
+ */
+static inline int put_bytes_left(const PutBitContext *s, int round_up)
+{
+    return s->buf_end - s->buf_ptr - ((BUF_BITS - s->bit_left + (round_up ? 7 : 0)) >> 3);
+}
+
 /**
  * Pad the end of the output stream with zeros.
  */
@@ -147,13 +172,9 @@ static inline void flush_put_bits_le(PutBitContext *s)
     s->bit_buf  = 0;
 }
 
-#if FF_API_AVPRIV_PUT_BITS
-void avpriv_align_put_bits(PutBitContext *s);
-#endif
-
 #ifdef BITSTREAM_WRITER_LE
-#define avpriv_put_string ff_put_string_unsupported_here
-#define avpriv_copy_bits avpriv_copy_bits_unsupported_here
+#define ff_put_string ff_put_string_unsupported_here
+#define ff_copy_bits ff_copy_bits_unsupported_here
 #else
 
 /**
@@ -161,7 +182,7 @@ void avpriv_align_put_bits(PutBitContext *s);
  *
  * @param terminate_string 0-terminates the written string if value is 1
  */
-void avpriv_put_string(PutBitContext *pb, const char *string,
+void ff_put_string(PutBitContext *pb, const char *string,
                        int terminate_string);
 
 /**
@@ -169,7 +190,7 @@ void avpriv_put_string(PutBitContext *pb, const char *string,
  *
  * @param length the number of bits of src to copy
  */
-void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length);
+void ff_copy_bits(PutBitContext *pb, const uint8_t *src, int length);
 #endif
 
 static inline void put_bits_no_assert(PutBitContext *s, int n, BitBuf value)
@@ -383,7 +404,6 @@ static inline void set_put_bits_buffer_size(PutBitContext *s, int size)
 {
     av_assert0(size <= INT_MAX/8 - BUF_BITS);
     s->buf_end = s->buf + size;
-    s->size_in_bits = 8*size;
 }
 
 /**