Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

avformat/avio: Constify data pointees of write callbacks

Browse Source 
They are currently non-const for reasons unknown, although
avio_write() accepts a const buffer.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
pull/390/head
Andreas Rheinhardt 1 year ago
parent e8704a8f60
commit 2a68d945cd
10 changed files with 71 additions and 1 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 4
      doc/APIchanges
  2. 4
      libavformat/avio.c
  3. 13
      libavformat/avio.h
  4. 4
      libavformat/avio_internal.h
  5. 28
      libavformat/aviobuf.c
  6. 4
      libavformat/hdsenc.c
  7. 4
      libavformat/smoothstreamingenc.c
  8. 8
      libavformat/url.h
  9. 2
      libavformat/version.h
  10. 1
      libavformat/version_major.h

4
doc/APIchanges
Unescape View File

@ -2,6 +2,10 @@ The last version increases of all libraries were on 2023-02-09
API changes, most recent first:
2023-09-07 - xxxxxxxxxx - lavf 60.12.100 - avio.h
Constify the buffer pointees in the write_packet and write_data_type
callbacks of AVIOContext on the next major bump.
2023-09-07 - xxxxxxxxxx - lavc 60.26.100 - defs.h
Add AV_PROFILE_* and AV_LEVEL_* replacements in defs.h for the
defines from avcodec.h. The latter are deprecated.

4
libavformat/avio.c
Unescape View File

@ -408,7 +408,11 @@ int ffurl_read_complete(URLContext *h, unsigned char *buf, int size)
return retry_transfer_wrapper(h, buf, size, size, h->prot->url_read);
}
#if FF_API_AVIO_WRITE_NONCONST
int ffurl_write2(void *urlcontext, uint8_t *buf, int size)
#else
int ffurl_write2(void *urlcontext, const uint8_t *buf, int size)
#endif
{
URLContext *h = urlcontext;

13
libavformat/avio.h
Unescape View File

@ -238,7 +238,11 @@ typedef struct AVIOContext {
void *opaque; /**< A private pointer, passed to the read/write/seek/...
functions. */
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
#if FF_API_AVIO_WRITE_NONCONST
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
#else
int (*write_packet)(void *opaque, const uint8_t *buf, int buf_size);
#endif
int64_t (*seek)(void *opaque, int64_t offset, int whence);
int64_t pos; /**< position in the file of the current buffer */
int eof_reached; /**< true if was unable to read due to error or eof */
@ -286,8 +290,13 @@ typedef struct AVIOContext {
/**
* A callback that is used instead of write_packet.
*/
#if FF_API_AVIO_WRITE_NONCONST
int (*write_data_type)(void *opaque, uint8_t *buf, int buf_size,
enum AVIODataMarkerType type, int64_t time);
#else
int (*write_data_type)(void *opaque, const uint8_t *buf, int buf_size,
enum AVIODataMarkerType type, int64_t time);
#endif
/**
* If set, don't call write_data_type separately for AVIO_DATA_MARKER_BOUNDARY_POINT,
* but ignore them and treat them as AVIO_DATA_MARKER_UNKNOWN (to avoid needlessly
@ -407,7 +416,11 @@ AVIOContext *avio_alloc_context(
int write_flag,
void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
#if FF_API_AVIO_WRITE_NONCONST
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
#else
int (*write_packet)(void *opaque, const uint8_t *buf, int buf_size),
#endif
int64_t (*seek)(void *opaque, int64_t offset, int whence));
/**

4
libavformat/avio_internal.h
Unescape View File

@ -89,7 +89,11 @@ void ffio_init_context(FFIOContext *s,
int write_flag,
void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
#if FF_API_AVIO_WRITE_NONCONST
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
#else
int (*write_packet)(void *opaque, const uint8_t *buf, int buf_size),
#endif
int64_t (*seek)(void *opaque, int64_t offset, int whence));
/**

28
libavformat/aviobuf.c
Unescape View File

@ -84,7 +84,11 @@ void ffio_init_context(FFIOContext *ctx,
int write_flag,
void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
#if FF_API_AVIO_WRITE_NONCONST
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
#else
int (*write_packet)(void *opaque, const uint8_t *buf, int buf_size),
#endif
int64_t (*seek)(void *opaque, int64_t offset, int whence))
{
AVIOContext *const s = &ctx->pub;
@ -143,7 +147,11 @@ AVIOContext *avio_alloc_context(
int write_flag,
void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
#if FF_API_AVIO_WRITE_NONCONST
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
#else
int (*write_packet)(void *opaque, const uint8_t *buf, int buf_size),
#endif
int64_t (*seek)(void *opaque, int64_t offset, int whence))
{
FFIOContext *s = av_malloc(sizeof(*s));
@ -165,12 +173,20 @@ static void writeout(AVIOContext *s, const uint8_t *data, int len)
if (!s->error) {
int ret = 0;
if (s->write_data_type)
#if FF_API_AVIO_WRITE_NONCONST
ret = s->write_data_type(s->opaque, (uint8_t *)data,
#else
ret = s->write_data_type(s->opaque, data,
#endif
len,
ctx->current_type,
ctx->last_time);
else if (s->write_packet)
#if FF_API_AVIO_WRITE_NONCONST
ret = s->write_packet(s->opaque, (uint8_t *)data, len);
#else
ret = s->write_packet(s->opaque, data, len);
#endif
if (ret < 0) {
s->error = ret;
} else {
@ -1396,7 +1412,11 @@ typedef struct DynBuffer {
uint8_t io_buffer[1];
} DynBuffer;
#if FF_API_AVIO_WRITE_NONCONST
static int dyn_buf_write(void *opaque, uint8_t *buf, int buf_size)
#else
static int dyn_buf_write(void *opaque, const uint8_t *buf, int buf_size)
#endif
{
DynBuffer *d = opaque;
unsigned new_size;
@ -1428,7 +1448,11 @@ static int dyn_buf_write(void *opaque, uint8_t *buf, int buf_size)
return buf_size;
}
#if FF_API_AVIO_WRITE_NONCONST
static int dyn_packet_buf_write(void *opaque, uint8_t *buf, int buf_size)
#else
static int dyn_packet_buf_write(void *opaque, const uint8_t *buf, int buf_size)
#endif
{
unsigned char buf1[4];
int ret;
@ -1565,7 +1589,11 @@ void ffio_free_dyn_buf(AVIOContext **s)
avio_context_free(s);
}
#if FF_API_AVIO_WRITE_NONCONST
static int null_buf_write(void *opaque, uint8_t *buf, int buf_size)
#else
static int null_buf_write(void *opaque, const uint8_t *buf, int buf_size)
#endif
{
DynBuffer *d = opaque;

4
libavformat/hdsenc.c
Unescape View File

@ -112,7 +112,11 @@ static int parse_header(OutputStream *os, const uint8_t *buf, int buf_size)
return 0;
}
#if FF_API_AVIO_WRITE_NONCONST
static int hds_write(void *opaque, uint8_t *buf, int buf_size)
#else
static int hds_write(void *opaque, const uint8_t *buf, int buf_size)
#endif
{
OutputStream *os = opaque;
if (os->out) {

4
libavformat/smoothstreamingenc.c
Unescape View File

@ -75,7 +75,11 @@ typedef struct SmoothStreamingContext {
int nb_fragments;
} SmoothStreamingContext;
#if FF_API_AVIO_WRITE_NONCONST
static int ism_write(void *opaque, uint8_t *buf, int buf_size)
#else
static int ism_write(void *opaque, const uint8_t *buf, int buf_size)
#endif
{
OutputStream *os = opaque;
if (os->out)

8
libavformat/url.h
Unescape View File

@ -194,7 +194,11 @@ static inline int ffurl_read(URLContext *h, uint8_t *buf, int size)
*/
int ffurl_read_complete(URLContext *h, unsigned char *buf, int size);
#if FF_API_AVIO_WRITE_NONCONST
int ffurl_write2(void *urlcontext, uint8_t *buf, int size);
#else
int ffurl_write2(void *urlcontext, const uint8_t *buf, int size);
#endif
/**
* Write size bytes from buf to the resource accessed by h.
*
@ -203,7 +207,11 @@ int ffurl_write2(void *urlcontext, uint8_t *buf, int size);
*/
static inline int ffurl_write(URLContext *h, const uint8_t *buf, int size)
{
#if FF_API_AVIO_WRITE_NONCONST
return ffurl_write2(h, (uint8_t*)buf, size);
#else
return ffurl_write2(h, buf, size);
#endif
}
int64_t ffurl_seek2(void *urlcontext, int64_t pos, int whence);

2
libavformat/version.h
Unescape View File

@ -31,7 +31,7 @@
#include "version_major.h"
#define LIBAVFORMAT_VERSION_MINOR 11
#define LIBAVFORMAT_VERSION_MINOR 12
#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \

1
libavformat/version_major.h
Unescape View File

@ -45,6 +45,7 @@
#define FF_API_GET_END_PTS (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_AVIODIRCONTEXT (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_AVFORMAT_IO_CLOSE (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_AVIO_WRITE_NONCONST (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_R_FRAME_RATE 1

Write Preview
Loading…
Cancel
Save