* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavutil/atomic.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "libavutil/opt.h"
+#include "libavutil/thread.h"
#include "avio_internal.h"
#include "avformat.h"
* @file
* Format register and lookup
*/
-/** head of registered input format linked list */
-static AVInputFormat *first_iformat = NULL;
-/** head of registered output format linked list */
-static AVOutputFormat *first_oformat = NULL;
-
-static AVInputFormat **last_iformat = &first_iformat;
-static AVOutputFormat **last_oformat = &first_oformat;
-
-AVInputFormat *av_iformat_next(const AVInputFormat *f)
-{
- if (f)
- return f->next;
- else
- return first_iformat;
-}
-
-AVOutputFormat *av_oformat_next(const AVOutputFormat *f)
-{
- if (f)
- return f->next;
- else
- return first_oformat;
-}
-
-void av_register_input_format(AVInputFormat *format)
-{
- AVInputFormat **p = last_iformat;
-
- // Note, format could be added after the first 2 checks but that implies that *p is no longer NULL
- while(p != &format->next && !format->next && avpriv_atomic_ptr_cas((void * volatile *)p, NULL, format))
- p = &(*p)->next;
-
- if (!format->next)
- last_iformat = &format->next;
-}
-
-void av_register_output_format(AVOutputFormat *format)
-{
- AVOutputFormat **p = last_oformat;
-
- // Note, format could be added after the first 2 checks but that implies that *p is no longer NULL
- while(p != &format->next && !format->next && avpriv_atomic_ptr_cas((void * volatile *)p, NULL, format))
- p = &(*p)->next;
-
- if (!format->next)
- last_oformat = &format->next;
-}
int av_match_ext(const char *filename, const char *extensions)
{
return 0;
}
-AVOutputFormat *av_guess_format(const char *short_name, const char *filename,
- const char *mime_type)
+const AVOutputFormat *av_guess_format(const char *short_name, const char *filename,
+ const char *mime_type)
{
- AVOutputFormat *fmt = NULL, *fmt_found;
+ const AVOutputFormat *fmt = NULL;
+ AVOutputFormat *fmt_found = NULL;
+ void *i = 0;
int score_max, score;
/* specific test for image sequences */
}
#endif
/* Find the proper file type. */
- fmt_found = NULL;
score_max = 0;
- while ((fmt = av_oformat_next(fmt))) {
+ while ((fmt = av_muxer_iterate(&i))) {
score = 0;
if (fmt->name && short_name && av_match_name(short_name, fmt->name))
score += 100;
}
if (score > score_max) {
score_max = score;
- fmt_found = fmt;
+ fmt_found = (AVOutputFormat*)fmt;
}
}
return fmt_found;
}
-enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
+enum AVCodecID av_guess_codec(const AVOutputFormat *fmt, const char *short_name,
const char *filename, const char *mime_type,
enum AVMediaType type)
{
if (av_match_name("segment", fmt->name) || av_match_name("ssegment", fmt->name)) {
- AVOutputFormat *fmt2 = av_guess_format(NULL, filename, NULL);
+ const AVOutputFormat *fmt2 = av_guess_format(NULL, filename, NULL);
if (fmt2)
fmt = fmt2;
}
return AV_CODEC_ID_NONE;
}
-AVInputFormat *av_find_input_format(const char *short_name)
+const AVInputFormat *av_find_input_format(const char *short_name)
{
- AVInputFormat *fmt = NULL;
- while ((fmt = av_iformat_next(fmt)))
+ const AVInputFormat *fmt = NULL;
+ void *i = 0;
+ while ((fmt = av_demuxer_iterate(&i)))
if (av_match_name(short_name, fmt->name))
- return fmt;
+ return (AVInputFormat*)fmt;
return NULL;
}
-AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened,
- int *score_ret)
+const AVInputFormat *av_probe_input_format3(const AVProbeData *pd,
+ int is_opened, int *score_ret)
{
AVProbeData lpd = *pd;
- AVInputFormat *fmt1 = NULL, *fmt;
+ const AVInputFormat *fmt1 = NULL;
+ const AVInputFormat *fmt = NULL;
int score, score_max = 0;
+ void *i = 0;
const static uint8_t zerobuffer[AVPROBE_PADDING_SIZE];
enum nodat {
NO_ID3,
nodat = ID3_GREATER_PROBE;
}
- fmt = NULL;
- while ((fmt1 = av_iformat_next(fmt1))) {
+ while ((fmt1 = av_demuxer_iterate(&i))) {
if (!is_opened == !(fmt1->flags & AVFMT_NOFILE) && strcmp(fmt1->name, "image2"))
continue;
score = 0;
return fmt;
}
-AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max)
+const AVInputFormat *av_probe_input_format2(const AVProbeData *pd,
+ int is_opened, int *score_max)
{
int score_ret;
- AVInputFormat *fmt = av_probe_input_format3(pd, is_opened, &score_ret);
+ const AVInputFormat *fmt = av_probe_input_format3(pd, is_opened, &score_ret);
if (score_ret > *score_max) {
*score_max = score_ret;
return fmt;
return NULL;
}
-AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened)
+const AVInputFormat *av_probe_input_format(const AVProbeData *pd, int is_opened)
{
int score = 0;
return av_probe_input_format2(pd, is_opened, &score);
}
-int av_probe_input_buffer2(AVIOContext *pb, AVInputFormat **fmt,
- const char *filename, void *logctx,
- unsigned int offset, unsigned int max_probe_size)
+int av_probe_input_buffer2(AVIOContext *pb, const AVInputFormat **fmt,
+ const char *filename, void *logctx,
+ unsigned int offset, unsigned int max_probe_size)
{
AVProbeData pd = { filename ? filename : "" };
uint8_t *buf = NULL;
*semi = '\0';
}
}
-#if 0
- if (!*fmt && pb->av_class && av_opt_get(pb, "mime_type", AV_OPT_SEARCH_CHILDREN, &mime_type) >= 0 && mime_type) {
- if (!av_strcasecmp(mime_type, "audio/aacp")) {
- *fmt = av_find_input_format("aac");
- }
- av_freep(&mime_type);
- }
-#endif
for (probe_size = PROBE_BUF_MIN; probe_size <= max_probe_size && !*fmt;
probe_size = FFMIN(probe_size << 1,
return ret < 0 ? ret : score;
}
-int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
+int av_probe_input_buffer(AVIOContext *pb, const AVInputFormat **fmt,
const char *filename, void *logctx,
unsigned int offset, unsigned int max_probe_size)
{
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