FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/put_bits.h	Lines:	111	142	78.2 %
Date:	2020-08-11 16:46:18	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"

#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;
}

#ifdef BITSTREAM_WRITER_LE
#define avpriv_align_put_bits align_put_bits_unsupported_here
#define avpriv_put_string ff_put_string_unsupported_here
#define avpriv_copy_bits avpriv_copy_bits_unsupported_here
#else
/**
 * Pad the bitstream with zeros up to the next byte boundary.
 */
void avpriv_align_put_bits(PutBitContext *s);

/**
 * Put the string string in the bitstream.
 *
 * @param terminate_string 0-terminates the written string if value is 1
 */
void avpriv_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 avpriv_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;
}

#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			#if ARCH_X86_64
37			// TODO: Benchmark and optionally enable on other 64-bit architectures.
38			typedef uint64_t BitBuf;
39			#define AV_WBBUF AV_WB64
40			#define AV_WLBUF AV_WL64
41			#else
42			typedef uint32_t BitBuf;
43			#define AV_WBBUF AV_WB32
44			#define AV_WLBUF AV_WL32
45			#endif
46
47			static const int BUF_BITS = 8 * sizeof(BitBuf);
48
49			typedef struct PutBitContext {
50			BitBuf bit_buf;
51			int bit_left;
52			uint8_t buf, buf_ptr, *buf_end;
53			int size_in_bits;
54			} PutBitContext;
55
56			/**
57			* Initialize the PutBitContext s.
58			*
59			* @param buffer the buffer where to put bits
60			* @param buffer_size the size in bytes of buffer
61			*/
62		25853272	static inline void init_put_bits(PutBitContext s, uint8_t buffer,
63			int buffer_size)
64			{
65	✗✓	25853272	if (buffer_size < 0) {
66			buffer_size = 0;
67			buffer = NULL;
68			}
69
70		25853272	s->size_in_bits = 8 * buffer_size;
71		25853272	s->buf = buffer;
72		25853272	s->buf_end = s->buf + buffer_size;
73		25853272	s->buf_ptr = s->buf;
74		25853272	s->bit_left = BUF_BITS;
75		25853272	s->bit_buf = 0;
76		25853272	}
77
78			/**
79			* @return the total number of bits written to the bitstream.
80			*/
81		48038690	static inline int put_bits_count(PutBitContext *s)
82			{
83		48038690	return (s->buf_ptr - s->buf) * 8 + BUF_BITS - s->bit_left;
84			}
85
86			/**
87			* Rebase the bit writer onto a reallocated buffer.
88			*
89			* @param buffer the buffer where to put bits
90			* @param buffer_size the size in bytes of buffer,
91			* must be large enough to hold everything written so far
92			*/
93		25	static inline void rebase_put_bits(PutBitContext s, uint8_t buffer,
94			int buffer_size)
95			{
96	✗✓	25	av_assert0(8*buffer_size >= put_bits_count(s));
97
98		25	s->buf_end = buffer + buffer_size;
99		25	s->buf_ptr = buffer + (s->buf_ptr - s->buf);
100		25	s->buf = buffer;
101		25	s->size_in_bits = 8 * buffer_size;
102		25	}
103
104			/**
105			* @return the number of bits available in the bitstream.
106			*/
107		271353732	static inline int put_bits_left(PutBitContext* s)
108			{
109		271353732	return (s->buf_end - s->buf_ptr) * 8 - BUF_BITS + s->bit_left;
110			}
111
112			/**
113			* Pad the end of the output stream with zeros.
114			*/
115		27045792	static inline void flush_put_bits(PutBitContext *s)
116			{
117			#ifndef BITSTREAM_WRITER_LE
118	✓✓	27044774	if (s->bit_left < BUF_BITS)
119		24295199	s->bit_buf <<= s->bit_left;
120			#endif
121	✓✓	110638097	while (s->bit_left < BUF_BITS) {
122	✗✓	83592305	av_assert0(s->buf_ptr < s->buf_end);
123			#ifdef BITSTREAM_WRITER_LE
124		3406	*s->buf_ptr++ = s->bit_buf;
125		3406	s->bit_buf >>= 8;
126			#else
127		83588899	*s->buf_ptr++ = s->bit_buf >> (BUF_BITS - 8);
128		83588899	s->bit_buf <<= 8;
129			#endif
130		83592305	s->bit_left += 8;
131			}
132		27045792	s->bit_left = BUF_BITS;
133		27045792	s->bit_buf = 0;
134		27045792	}
135
136		1063	static inline void flush_put_bits_le(PutBitContext *s)
137			{
138	✓✓	5774	while (s->bit_left < BUF_BITS) {
139	✗✓	4711	av_assert0(s->buf_ptr < s->buf_end);
140		4711	*s->buf_ptr++ = s->bit_buf;
141		4711	s->bit_buf >>= 8;
142		4711	s->bit_left += 8;
143			}
144		1063	s->bit_left = BUF_BITS;
145		1063	s->bit_buf = 0;
146		1063	}
147
148			#ifdef BITSTREAM_WRITER_LE
149			#define avpriv_align_put_bits align_put_bits_unsupported_here
150			#define avpriv_put_string ff_put_string_unsupported_here
151			#define avpriv_copy_bits avpriv_copy_bits_unsupported_here
152			#else
153			/**
154			* Pad the bitstream with zeros up to the next byte boundary.
155			*/
156			void avpriv_align_put_bits(PutBitContext *s);
157
158			/**
159			* Put the string string in the bitstream.
160			*
161			* @param terminate_string 0-terminates the written string if value is 1
162			*/
163			void avpriv_put_string(PutBitContext pb, const char string,
164			int terminate_string);
165
166			/**
167			* Copy the content of src to the bitstream.
168			*
169			* @param length the number of bits of src to copy
170			*/
171			void avpriv_copy_bits(PutBitContext pb, const uint8_t src, int length);
172			#endif
173
174		2509312345	static inline void put_bits_no_assert(PutBitContext *s, int n, BitBuf value)
175			{
176			BitBuf bit_buf;
177			int bit_left;
178
179		2509312345	bit_buf = s->bit_buf;
180		2509312345	bit_left = s->bit_left;
181
182			/* XXX: optimize */
183			#ifdef BITSTREAM_WRITER_LE
184		2868805	bit_buf \|= value << (BUF_BITS - bit_left);
185	✓✓	2868805	if (n >= bit_left) {
186	✓✗	137390	if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
187		137390	AV_WLBUF(s->buf_ptr, bit_buf);
188		137390	s->buf_ptr += sizeof(BitBuf);
189			} else {
190			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
191			av_assert2(0);
192			}
193		137390	bit_buf = value >> bit_left;
194		137390	bit_left += BUF_BITS;
195			}
196		2868805	bit_left -= n;
197			#else
198	✓✓	2506443540	if (n < bit_left) {
199		2332444385	bit_buf = (bit_buf << n) \| value;
200		2332444385	bit_left -= n;
201			} else {
202		173999155	bit_buf <<= bit_left;
203		173999155	bit_buf \|= value >> (n - bit_left);
204	✓✗	173999155	if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
205		173999155	AV_WBBUF(s->buf_ptr, bit_buf);
206		173999155	s->buf_ptr += sizeof(BitBuf);
207			} else {
208			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
209			av_assert2(0);
210			}
211		173999155	bit_left += BUF_BITS - n;
212		173999155	bit_buf = value;
213			}
214			#endif
215
216		2509312345	s->bit_buf = bit_buf;
217		2509312345	s->bit_left = bit_left;
218		2509312345	}
219
220			/**
221			* Write up to 31 bits into a bitstream.
222			* Use put_bits32 to write 32 bits.
223			*/
224		2505634352	static inline void put_bits(PutBitContext *s, int n, BitBuf value)
225			{
226			av_assert2(n <= 31 && value < (1UL << n));
227		2505634352	put_bits_no_assert(s, n, value);
228		2505634352	}
229
230		1631075	static inline void put_bits_le(PutBitContext *s, int n, BitBuf value)
231			{
232			BitBuf bit_buf;
233			int bit_left;
234
235			av_assert2(n <= 31 && value < (1UL << n));
236
237		1631075	bit_buf = s->bit_buf;
238		1631075	bit_left = s->bit_left;
239
240		1631075	bit_buf \|= value << (BUF_BITS - bit_left);
241	✓✓	1631075	if (n >= bit_left) {
242	✓✗	279465	if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
243		279465	AV_WLBUF(s->buf_ptr, bit_buf);
244		279465	s->buf_ptr += sizeof(BitBuf);
245			} else {
246			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
247			av_assert2(0);
248			}
249		279465	bit_buf = value >> bit_left;
250		279465	bit_left += BUF_BITS;
251			}
252		1631075	bit_left -= n;
253
254		1631075	s->bit_buf = bit_buf;
255		1631075	s->bit_left = bit_left;
256		1631075	}
257
258		198870214	static inline void put_sbits(PutBitContext *pb, int n, int32_t value)
259			{
260			av_assert2(n >= 0 && n <= 31);
261
262		198870214	put_bits(pb, n, av_mod_uintp2(value, n));
263		198870214	}
264
265			/**
266			* Write exactly 32 bits into a bitstream.
267			*/
268		3677993	static void av_unused put_bits32(PutBitContext *s, uint32_t value)
269			{
270			BitBuf bit_buf;
271			int bit_left;
272
273	✓✗	3677993	if (BUF_BITS > 32) {
274		3677993	put_bits_no_assert(s, 32, value);
275		3677993	return;
276			}
277
278			bit_buf = s->bit_buf;
279			bit_left = s->bit_left;
280
281			#ifdef BITSTREAM_WRITER_LE
282			bit_buf \|= (BitBuf)value << (BUF_BITS - bit_left);
283			if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
284			AV_WLBUF(s->buf_ptr, bit_buf);
285			s->buf_ptr += sizeof(BitBuf);
286			} else {
287			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
288			av_assert2(0);
289			}
290			bit_buf = (uint64_t)value >> bit_left;
291			#else
292			bit_buf = (uint64_t)bit_buf << bit_left;
293			bit_buf \|= (BitBuf)value >> (BUF_BITS - bit_left);
294			if (s->buf_end - s->buf_ptr >= sizeof(BitBuf)) {
295			AV_WBBUF(s->buf_ptr, bit_buf);
296			s->buf_ptr += sizeof(BitBuf);
297			} else {
298			av_log(NULL, AV_LOG_ERROR, "Internal error, put_bits buffer too small\n");
299			av_assert2(0);
300			}
301			bit_buf = value;
302			#endif
303
304			s->bit_buf = bit_buf;
305			s->bit_left = bit_left;
306			}
307
308			/**
309			* Write up to 64 bits into a bitstream.
310			*/
311		8175	static inline void put_bits64(PutBitContext *s, int n, uint64_t value)
312			{
313			av_assert2((n == 64) \|\| (n < 64 && value < (UINT64_C(1) << n)));
314
315	✓✓	8175	if (n < 32)
316		4079	put_bits(s, n, value);
317	✗✓	4096	else if (n == 32)
318			put_bits32(s, value);
319	✓✗	4096	else if (n < 64) {
320		4096	uint32_t lo = value & 0xffffffff;
321		4096	uint32_t hi = value >> 32;
322			#ifdef BITSTREAM_WRITER_LE
323			put_bits32(s, lo);
324			put_bits(s, n - 32, hi);
325			#else
326		4096	put_bits(s, n - 32, hi);
327		4096	put_bits32(s, lo);
328			#endif
329			} else {
330			uint32_t lo = value & 0xffffffff;
331			uint32_t hi = value >> 32;
332			#ifdef BITSTREAM_WRITER_LE
333			put_bits32(s, lo);
334			put_bits32(s, hi);
335			#else
336			put_bits32(s, hi);
337			put_bits32(s, lo);
338			#endif
339
340			}
341		8175	}
342
343			/**
344			* Return the pointer to the byte where the bitstream writer will put
345			* the next bit.
346			*/
347		639765	static inline uint8_t put_bits_ptr(PutBitContext s)
348			{
349		639765	return s->buf_ptr;
350			}
351
352			/**
353			* Skip the given number of bytes.
354			* PutBitContext must be flushed & aligned to a byte boundary before calling this.
355			*/
356		168047	static inline void skip_put_bytes(PutBitContext *s, int n)
357			{
358			av_assert2((put_bits_count(s) & 7) == 0);
359			av_assert2(s->bit_left == BUF_BITS);
360	✗✓	168047	av_assert0(n <= s->buf_end - s->buf_ptr);
361		168047	s->buf_ptr += n;
362		168047	}
363
364			/**
365			* Skip the given number of bits.
366			* Must only be used if the actual values in the bitstream do not matter.
367			* If n is < 0 the behavior is undefined.
368			*/
369			static inline void skip_put_bits(PutBitContext *s, int n)
370			{
371			unsigned bits = BUF_BITS - s->bit_left + n;
372			s->buf_ptr += sizeof(BitBuf) * (bits / BUF_BITS);
373			s->bit_left = BUF_BITS - (bits & (BUF_BITS - 1));
374			}
375
376			/**
377			* Change the end of the buffer.
378			*
379			* @param size the new size in bytes of the buffer where to put bits
380			*/
381		4054	static inline void set_put_bits_buffer_size(PutBitContext *s, int size)
382			{
383	✗✓	4054	av_assert0(size <= INT_MAX/8 - BUF_BITS);
384		4054	s->buf_end = s->buf + size;
385		4054	s->size_in_bits = 8*size;
386		4054	}
387
388			#undef AV_WBBUF
389			#undef AV_WLBUF
390
391			#endif /* AVCODEC_PUT_BITS_H */