FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/put_bits.h	Lines:	114	145	78.6 %
Date:	2021-01-20 23:14:43	Branches:	26	42	61.9 %


/*
 * copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
 *
 * 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
 */

/**
 * @file
 * bitstream writer API
 */

#ifndef AVCODEC_PUT_BITS_H
#define AVCODEC_PUT_BITS_H

#include <stdint.h>
#include <stddef.h>

#include "config.h"
#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;
#define AV_WBBUF AV_WB64
#define AV_WLBUF AV_WL64
#else
typedef uint32_t BitBuf;
#define AV_WBBUF AV_WB32
#define AV_WLBUF AV_WL32
#endif

static const int BUF_BITS = 8 * sizeof(BitBuf);

typedef struct PutBitContext {
    BitBuf bit_buf;
    int bit_left;
    uint8_t *buf, *buf_ptr, *buf_end;
    int size_in_bits;
} PutBitContext;

/**
 * Initialize the PutBitContext s.
 *
 * @param buffer the buffer where to put bits
 * @param buffer_size the size in bytes of buffer
 */
static inline void init_put_bits(PutBitContext *s, uint8_t *buffer,
                                 int buffer_size)
{
    if (buffer_size < 0) {
        buffer_size = 0;
        buffer      = NULL;
    }

    s->size_in_bits = 8 * buffer_size;
    s->buf          = buffer;
    s->buf_end      = s->buf + buffer_size;
    s->buf_ptr      = s->buf;
    s->bit_left     = BUF_BITS;
    s->bit_buf      = 0;
}

/**
 * @return the total number of bits written to the bitstream.
 */
static inline int put_bits_count(PutBitContext *s)
{
    return (s->buf_ptr - s->buf) * 8 + BUF_BITS - s->bit_left;
}

/**
 * Rebase the bit writer onto a reallocated buffer.
 *
 * @param buffer the buffer where to put bits
 * @param buffer_size the size in bytes of buffer,
 *                    must be large enough to hold everything written so far
 */
static inline void rebase_put_bits(PutBitContext *s, uint8_t *buffer,
                                   int buffer_size)
{
    av_assert0(8*buffer_size >= put_bits_count(s));

    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;
}

/**
 * @return the number of bits available in the bitstream.
 */
static inline int put_bits_left(PutBitContext* s)
{
    return (s->buf_end - s->buf_ptr) * 8 - BUF_BITS + s->bit_left;
}

/**
 * Pad the end of the output stream with zeros.
 */
static inline void flush_put_bits(PutBitContext *s)
{
#ifndef BITSTREAM_WRITER_LE
    if (s->bit_left < BUF_BITS)
        s->bit_buf <<= s->bit_left;
#endif
    while (s->bit_left < BUF_BITS) {
        av_assert0(s->buf_ptr < s->buf_end);
#ifdef BITSTREAM_WRITER_LE
        *s->buf_ptr++ = s->bit_buf;
        s->bit_buf  >>= 8;
#else
        *s->buf_ptr++ = s->bit_buf >> (BUF_BITS - 8);
        s->bit_buf  <<= 8;
#endif
        s->bit_left  += 8;
    }
    s->bit_left = BUF_BITS;
    s->bit_buf  = 0;
}

static inline void flush_put_bits_le(PutBitContext *s)
{
    while (s->bit_left < BUF_BITS) {
        av_assert0(s->buf_ptr < s->buf_end);
        *s->buf_ptr++ = s->bit_buf;
        s->bit_buf  >>= 8;
        s->bit_left  += 8;
    }
    s->bit_left = BUF_BITS;
    s->bit_buf  = 0;
}

#if FF_API_AVPRIV_PUT_BITS
void avpriv_align_put_bits(PutBitContext *s);
void avpriv_copy_bits(PutBitContext *pb, const uint8_t *src, int length);
#endif

#ifdef BITSTREAM_WRITER_LE
#define ff_put_string ff_put_string_unsupported_here
#define ff_copy_bits ff_copy_bits_unsupported_here
#else

/**
 * Put the string string in the bitstream.
 *
 * @param terminate_string 0-terminates the written string if value is 1
 */
void ff_put_string(PutBitContext *pb, const char *string,
                       int terminate_string);

/**
 * Copy the content of src to the bitstream.
 *
 * @param length the number of bits of src to copy
 */
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)
{
    BitBuf bit_buf;
    int bit_left;

    bit_buf  = s->bit_buf;
    bit_left = s->bit_left;

    /* XXX: optimize */
#ifdef BITSTREAM_WRITER_LE
    bit_buf |= value << (BUF_BITS - bit_left);
    if (n >= bit_left) {
        if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
            AV_WLBUF(s->buf_ptr, bit_buf);
            s->buf_ptr += sizeof(BitBuf);
        } else {
            av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
            av_assert2(0);
        }
        bit_buf     = value >> bit_left;
        bit_left   += BUF_BITS;
    }
    bit_left -= n;
#else
    if (n < bit_left) {
        bit_buf     = (bit_buf << n) | value;
        bit_left   -= n;
    } else {
        bit_buf   <<= bit_left;
        bit_buf    |= value >> (n - bit_left);
        if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
            AV_WBBUF(s->buf_ptr, bit_buf);
            s->buf_ptr += sizeof(BitBuf);
        } else {
            av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
            av_assert2(0);
        }
        bit_left   += BUF_BITS - n;
        bit_buf     = value;
    }
#endif

    s->bit_buf  = bit_buf;
    s->bit_left = bit_left;
}

/**
 * Write up to 31 bits into a bitstream.
 * Use put_bits32 to write 32 bits.
 */
static inline void put_bits(PutBitContext *s, int n, BitBuf value)
{
    av_assert2(n <= 31 && value < (1UL << n));
    put_bits_no_assert(s, n, value);
}

static inline void put_bits_le(PutBitContext *s, int n, BitBuf value)
{
    BitBuf bit_buf;
    int bit_left;

    av_assert2(n <= 31 && value < (1UL << n));

    bit_buf  = s->bit_buf;
    bit_left = s->bit_left;

    bit_buf |= value << (BUF_BITS - bit_left);
    if (n >= bit_left) {
        if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
            AV_WLBUF(s->buf_ptr, bit_buf);
            s->buf_ptr += sizeof(BitBuf);
        } else {
            av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
            av_assert2(0);
        }
        bit_buf     = value >> bit_left;
        bit_left   += BUF_BITS;
    }
    bit_left -= n;

    s->bit_buf  = bit_buf;
    s->bit_left = bit_left;
}

static inline void put_sbits(PutBitContext *pb, int n, int32_t value)
{
    av_assert2(n >= 0 && n <= 31);

    put_bits(pb, n, av_mod_uintp2(value, n));
}

/**
 * Write exactly 32 bits into a bitstream.
 */
static void av_unused put_bits32(PutBitContext *s, uint32_t value)
{
    BitBuf bit_buf;
    int bit_left;

    if (BUF_BITS > 32) {
        put_bits_no_assert(s, 32, value);
        return;
    }

    bit_buf  = s->bit_buf;
    bit_left = s->bit_left;

#ifdef BITSTREAM_WRITER_LE
    bit_buf |= (BitBuf)value << (BUF_BITS - bit_left);
    if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
        AV_WLBUF(s->buf_ptr, bit_buf);
        s->buf_ptr += sizeof(BitBuf);
    } else {
        av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
        av_assert2(0);
    }
    bit_buf     = (uint64_t)value >> bit_left;
#else
    bit_buf     = (uint64_t)bit_buf << bit_left;
    bit_buf    |= (BitBuf)value >> (BUF_BITS - bit_left);
    if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
        AV_WBBUF(s->buf_ptr, bit_buf);
        s->buf_ptr += sizeof(BitBuf);
    } else {
        av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
        av_assert2(0);
    }
    bit_buf     = value;
#endif

    s->bit_buf  = bit_buf;
    s->bit_left = bit_left;
}

/**
 * Write up to 64 bits into a bitstream.
 */
static inline void put_bits64(PutBitContext *s, int n, uint64_t value)
{
    av_assert2((n == 64) || (n < 64 && value < (UINT64_C(1) << n)));

    if (n < 32)
        put_bits(s, n, value);
    else if (n == 32)
        put_bits32(s, value);
    else if (n < 64) {
        uint32_t lo = value & 0xffffffff;
        uint32_t hi = value >> 32;
#ifdef BITSTREAM_WRITER_LE
        put_bits32(s, lo);
        put_bits(s, n - 32, hi);
#else
        put_bits(s, n - 32, hi);
        put_bits32(s, lo);
#endif
    } else {
        uint32_t lo = value & 0xffffffff;
        uint32_t hi = value >> 32;
#ifdef BITSTREAM_WRITER_LE
        put_bits32(s, lo);
        put_bits32(s, hi);
#else
        put_bits32(s, hi);
        put_bits32(s, lo);
#endif

    }
}

/**
 * Return the pointer to the byte where the bitstream writer will put
 * the next bit.
 */
static inline uint8_t *put_bits_ptr(PutBitContext *s)
{
    return s->buf_ptr;
}

/**
 * Skip the given number of bytes.
 * PutBitContext must be flushed & aligned to a byte boundary before calling this.
 */
static inline void skip_put_bytes(PutBitContext *s, int n)
{
    av_assert2((put_bits_count(s) & 7) == 0);
    av_assert2(s->bit_left == BUF_BITS);
    av_assert0(n <= s->buf_end - s->buf_ptr);
    s->buf_ptr += n;
}

/**
 * Skip the given number of bits.
 * Must only be used if the actual values in the bitstream do not matter.
 * If n is < 0 the behavior is undefined.
 */
static inline void skip_put_bits(PutBitContext *s, int n)
{
    unsigned bits = BUF_BITS - s->bit_left + n;
    s->buf_ptr += sizeof(BitBuf) * (bits / BUF_BITS);
    s->bit_left = BUF_BITS - (bits & (BUF_BITS - 1));
}

/**
 * Change the end of the buffer.
 *
 * @param size the new size in bytes of the buffer where to put bits
 */
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;
}

/**
 * Pad the bitstream with zeros up to the next byte boundary.
 */
static inline void align_put_bits(PutBitContext *s)
{
    put_bits(s, s->bit_left & 7, 0);
}

#undef AV_WBBUF
#undef AV_WLBUF

#endif /* AVCODEC_PUT_BITS_H */


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			* copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
3			*
4			* This file is part of FFmpeg.
5			*
6			* FFmpeg is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* FFmpeg is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with FFmpeg; if not, write to the Free Software
18			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19			*/
20
21			/**
22			* @file
23			* bitstream writer API
24			*/
25
26			#ifndef AVCODEC_PUT_BITS_H
27			#define AVCODEC_PUT_BITS_H
28
29			#include <stdint.h>
30			#include <stddef.h>
31
32			#include "config.h"
33			#include "libavutil/intreadwrite.h"
34			#include "libavutil/avassert.h"
35
36			#include "version.h"
37
38			#if ARCH_X86_64
39			// TODO: Benchmark and optionally enable on other 64-bit architectures.
40			typedef uint64_t BitBuf;
41			#define AV_WBBUF AV_WB64
42			#define AV_WLBUF AV_WL64
43			#else
44			typedef uint32_t BitBuf;
45			#define AV_WBBUF AV_WB32
46			#define AV_WLBUF AV_WL32
47			#endif
48
49			static const int BUF_BITS = 8 * sizeof(BitBuf);
50
51			typedef struct PutBitContext {
52			BitBuf bit_buf;
53			int bit_left;
54			uint8_t buf, buf_ptr, *buf_end;
55			int size_in_bits;
56			} PutBitContext;
57
58			/**
59			* Initialize the PutBitContext s.
60			*
61			* @param buffer the buffer where to put bits
62			* @param buffer_size the size in bytes of buffer
63			*/
64		25853294	static inline void init_put_bits(PutBitContext s, uint8_t buffer,
65			int buffer_size)
66			{
67	✗✓	25853294	if (buffer_size < 0) {
68			buffer_size = 0;
69			buffer = NULL;
70			}
71
72		25853294	s->size_in_bits = 8 * buffer_size;
73		25853294	s->buf = buffer;
74		25853294	s->buf_end = s->buf + buffer_size;
75		25853294	s->buf_ptr = s->buf;
76		25853294	s->bit_left = BUF_BITS;
77		25853294	s->bit_buf = 0;
78		25853294	}
79
80			/**
81			* @return the total number of bits written to the bitstream.
82			*/
83		48037332	static inline int put_bits_count(PutBitContext *s)
84			{
85		48037332	return (s->buf_ptr - s->buf) * 8 + BUF_BITS - s->bit_left;
86			}
87
88			/**
89			* Rebase the bit writer onto a reallocated buffer.
90			*
91			* @param buffer the buffer where to put bits
92			* @param buffer_size the size in bytes of buffer,
93			* must be large enough to hold everything written so far
94			*/
95		25	static inline void rebase_put_bits(PutBitContext s, uint8_t buffer,
96			int buffer_size)
97			{
98	✗✓	25	av_assert0(8*buffer_size >= put_bits_count(s));
99
100		25	s->buf_end = buffer + buffer_size;
101		25	s->buf_ptr = buffer + (s->buf_ptr - s->buf);
102		25	s->buf = buffer;
103		25	s->size_in_bits = 8 * buffer_size;
104		25	}
105
106			/**
107			* @return the number of bits available in the bitstream.
108			*/
109		271353359	static inline int put_bits_left(PutBitContext* s)
110			{
111		271353359	return (s->buf_end - s->buf_ptr) * 8 - BUF_BITS + s->bit_left;
112			}
113
114			/**
115			* Pad the end of the output stream with zeros.
116			*/
117		27045614	static inline void flush_put_bits(PutBitContext *s)
118			{
119			#ifndef BITSTREAM_WRITER_LE
120	✓✓	27044596	if (s->bit_left < BUF_BITS)
121		24294965	s->bit_buf <<= s->bit_left;
122			#endif
123	✓✓	110636759	while (s->bit_left < BUF_BITS) {
124	✗✓	83591145	av_assert0(s->buf_ptr < s->buf_end);
125			#ifdef BITSTREAM_WRITER_LE
126		3406	*s->buf_ptr++ = s->bit_buf;
127		3406	s->bit_buf >>= 8;
128			#else
129		83587739	*s->buf_ptr++ = s->bit_buf >> (BUF_BITS - 8);
130		83587739	s->bit_buf <<= 8;
131			#endif
132		83591145	s->bit_left += 8;
133			}
134		27045614	s->bit_left = BUF_BITS;
135		27045614	s->bit_buf = 0;
136		27045614	}
137
138		1263	static inline void flush_put_bits_le(PutBitContext *s)
139			{
140	✓✓	6831	while (s->bit_left < BUF_BITS) {
141	✗✓	5568	av_assert0(s->buf_ptr < s->buf_end);
142		5568	*s->buf_ptr++ = s->bit_buf;
143		5568	s->bit_buf >>= 8;
144		5568	s->bit_left += 8;
145			}
146		1263	s->bit_left = BUF_BITS;
147		1263	s->bit_buf = 0;
148		1263	}
149
150			#if FF_API_AVPRIV_PUT_BITS
151			void avpriv_align_put_bits(PutBitContext *s);
152			void avpriv_copy_bits(PutBitContext pb, const uint8_t src, int length);
153			#endif
154
155			#ifdef BITSTREAM_WRITER_LE
156			#define ff_put_string ff_put_string_unsupported_here
157			#define ff_copy_bits ff_copy_bits_unsupported_here
158			#else
159
160			/**
161			* Put the string string in the bitstream.
162			*
163			* @param terminate_string 0-terminates the written string if value is 1
164			*/
165			void ff_put_string(PutBitContext pb, const char string,
166			int terminate_string);
167
168			/**
169			* Copy the content of src to the bitstream.
170			*
171			* @param length the number of bits of src to copy
172			*/
173			void ff_copy_bits(PutBitContext pb, const uint8_t src, int length);
174			#endif
175
176		2503531545	static inline void put_bits_no_assert(PutBitContext *s, int n, BitBuf value)
177			{
178			BitBuf bit_buf;
179			int bit_left;
180
181		2503531545	bit_buf = s->bit_buf;
182		2503531545	bit_left = s->bit_left;
183
184			/* XXX: optimize */
185			#ifdef BITSTREAM_WRITER_LE
186		2868805	bit_buf \|= value << (BUF_BITS - bit_left);
187	✓✓	2868805	if (n >= bit_left) {
188	✓✗	137390	if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
189		137390	AV_WLBUF(s->buf_ptr, bit_buf);
190		137390	s->buf_ptr += sizeof(BitBuf);
191			} else {
192			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
193			av_assert2(0);
194			}
195		137390	bit_buf = value >> bit_left;
196		137390	bit_left += BUF_BITS;
197			}
198		2868805	bit_left -= n;
199			#else
200	✓✓	2500662740	if (n < bit_left) {
201		2326973676	bit_buf = (bit_buf << n) \| value;
202		2326973676	bit_left -= n;
203			} else {
204		173689064	bit_buf <<= bit_left;
205		173689064	bit_buf \|= value >> (n - bit_left);
206	✓✗	173689064	if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
207		173689064	AV_WBBUF(s->buf_ptr, bit_buf);
208		173689064	s->buf_ptr += sizeof(BitBuf);
209			} else {
210			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
211			av_assert2(0);
212			}
213		173689064	bit_left += BUF_BITS - n;
214		173689064	bit_buf = value;
215			}
216			#endif
217
218		2503531545	s->bit_buf = bit_buf;
219		2503531545	s->bit_left = bit_left;
220		2503531545	}
221
222			/**
223			* Write up to 31 bits into a bitstream.
224			* Use put_bits32 to write 32 bits.
225			*/
226		2499853552	static inline void put_bits(PutBitContext *s, int n, BitBuf value)
227			{
228			av_assert2(n <= 31 && value < (1UL << n));
229		2499853552	put_bits_no_assert(s, n, value);
230		2499853552	}
231
232		8360325	static inline void put_bits_le(PutBitContext *s, int n, BitBuf value)
233			{
234			BitBuf bit_buf;
235			int bit_left;
236
237			av_assert2(n <= 31 && value < (1UL << n));
238
239		8360325	bit_buf = s->bit_buf;
240		8360325	bit_left = s->bit_left;
241
242		8360325	bit_buf \|= value << (BUF_BITS - bit_left);
243	✓✓	8360325	if (n >= bit_left) {
244	✓✗	646946	if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
245		646946	AV_WLBUF(s->buf_ptr, bit_buf);
246		646946	s->buf_ptr += sizeof(BitBuf);
247			} else {
248			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
249			av_assert2(0);
250			}
251		646946	bit_buf = value >> bit_left;
252		646946	bit_left += BUF_BITS;
253			}
254		8360325	bit_left -= n;
255
256		8360325	s->bit_buf = bit_buf;
257		8360325	s->bit_left = bit_left;
258		8360325	}
259
260		198827031	static inline void put_sbits(PutBitContext *pb, int n, int32_t value)
261			{
262			av_assert2(n >= 0 && n <= 31);
263
264		198827031	put_bits(pb, n, av_mod_uintp2(value, n));
265		198827031	}
266
267			/**
268			* Write exactly 32 bits into a bitstream.
269			*/
270		3677993	static void av_unused put_bits32(PutBitContext *s, uint32_t value)
271			{
272			BitBuf bit_buf;
273			int bit_left;
274
275	✓✗	3677993	if (BUF_BITS > 32) {
276		3677993	put_bits_no_assert(s, 32, value);
277		3677993	return;
278			}
279
280			bit_buf = s->bit_buf;
281			bit_left = s->bit_left;
282
283			#ifdef BITSTREAM_WRITER_LE
284			bit_buf \|= (BitBuf)value << (BUF_BITS - bit_left);
285			if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
286			AV_WLBUF(s->buf_ptr, bit_buf);
287			s->buf_ptr += sizeof(BitBuf);
288			} else {
289			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
290			av_assert2(0);
291			}
292			bit_buf = (uint64_t)value >> bit_left;
293			#else
294			bit_buf = (uint64_t)bit_buf << bit_left;
295			bit_buf \|= (BitBuf)value >> (BUF_BITS - bit_left);
296			if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
297			AV_WBBUF(s->buf_ptr, bit_buf);
298			s->buf_ptr += sizeof(BitBuf);
299			} else {
300			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
301			av_assert2(0);
302			}
303			bit_buf = value;
304			#endif
305
306			s->bit_buf = bit_buf;
307			s->bit_left = bit_left;
308			}
309
310			/**
311			* Write up to 64 bits into a bitstream.
312			*/
313		8175	static inline void put_bits64(PutBitContext *s, int n, uint64_t value)
314			{
315			av_assert2((n == 64) \|\| (n < 64 && value < (UINT64_C(1) << n)));
316
317	✓✓	8175	if (n < 32)
318		4079	put_bits(s, n, value);
319	✗✓	4096	else if (n == 32)
320			put_bits32(s, value);
321	✓✗	4096	else if (n < 64) {
322		4096	uint32_t lo = value & 0xffffffff;
323		4096	uint32_t hi = value >> 32;
324			#ifdef BITSTREAM_WRITER_LE
325			put_bits32(s, lo);
326			put_bits(s, n - 32, hi);
327			#else
328		4096	put_bits(s, n - 32, hi);
329		4096	put_bits32(s, lo);
330			#endif
331			} else {
332			uint32_t lo = value & 0xffffffff;
333			uint32_t hi = value >> 32;
334			#ifdef BITSTREAM_WRITER_LE
335			put_bits32(s, lo);
336			put_bits32(s, hi);
337			#else
338			put_bits32(s, hi);
339			put_bits32(s, lo);
340			#endif
341
342			}
343		8175	}
344
345			/**
346			* Return the pointer to the byte where the bitstream writer will put
347			* the next bit.
348			*/
349		639863	static inline uint8_t put_bits_ptr(PutBitContext s)
350			{
351		639863	return s->buf_ptr;
352			}
353
354			/**
355			* Skip the given number of bytes.
356			* PutBitContext must be flushed & aligned to a byte boundary before calling this.
357			*/
358		168047	static inline void skip_put_bytes(PutBitContext *s, int n)
359			{
360			av_assert2((put_bits_count(s) & 7) == 0);
361			av_assert2(s->bit_left == BUF_BITS);
362	✗✓	168047	av_assert0(n <= s->buf_end - s->buf_ptr);
363		168047	s->buf_ptr += n;
364		168047	}
365
366			/**
367			* Skip the given number of bits.
368			* Must only be used if the actual values in the bitstream do not matter.
369			* If n is < 0 the behavior is undefined.
370			*/
371			static inline void skip_put_bits(PutBitContext *s, int n)
372			{
373			unsigned bits = BUF_BITS - s->bit_left + n;
374			s->buf_ptr += sizeof(BitBuf) * (bits / BUF_BITS);
375			s->bit_left = BUF_BITS - (bits & (BUF_BITS - 1));
376			}
377
378			/**
379			* Change the end of the buffer.
380			*
381			* @param size the new size in bytes of the buffer where to put bits
382			*/
383		4054	static inline void set_put_bits_buffer_size(PutBitContext *s, int size)
384			{
385	✗✓	4054	av_assert0(size <= INT_MAX/8 - BUF_BITS);
386		4054	s->buf_end = s->buf + size;
387		4054	s->size_in_bits = 8*size;
388		4054	}
389
390			/**
391			* Pad the bitstream with zeros up to the next byte boundary.
392			*/
393		401186	static inline void align_put_bits(PutBitContext *s)
394			{
395		401186	put_bits(s, s->bit_left & 7, 0);
396		401186	}
397
398			#undef AV_WBBUF
399			#undef AV_WLBUF
400
401			#endif /* AVCODEC_PUT_BITS_H */