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Merge commit 'afc8685395'

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* commit 'afc8685395':
  avf: split off format register and lookup function

Conflicts:
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-06-16 23:38:27 +02:00
commit 4a522eff00
3 changed files with 188 additions and 150 deletions
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150
libavformat/utils.c
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@ -103,156 +103,6 @@ static int64_t wrap_timestamp(AVStream *st, int64_t timestamp)
MAKE_ACCESSORS(AVStream, stream, AVRational, r_frame_rate)
/** head of registered input format linked list */
static AVInputFormat *first_iformat = NULL;
/** head of registered output format linked list */
static AVOutputFormat *first_oformat = NULL;
AVInputFormat *av_iformat_next(AVInputFormat *f)
{
if(f) return f->next;
else return first_iformat;
}
AVOutputFormat *av_oformat_next(AVOutputFormat *f)
{
if(f) return f->next;
else return first_oformat;
}
void av_register_input_format(AVInputFormat *format)
{
AVInputFormat **p;
p = &first_iformat;
while (*p != NULL) p = &(*p)->next;
*p = format;
format->next = NULL;
}
void av_register_output_format(AVOutputFormat *format)
{
AVOutputFormat **p;
p = &first_oformat;
while (*p != NULL) p = &(*p)->next;
*p = format;
format->next = NULL;
}
int av_match_ext(const char *filename, const char *extensions)
{
const char *ext, *p;
char ext1[32], *q;
if(!filename)
return 0;
ext = strrchr(filename, '.');
if (ext) {
ext++;
p = extensions;
for(;;) {
q = ext1;
while (*p != '\0' && *p != ',' && q-ext1<sizeof(ext1)-1)
*q++ = *p++;
*q = '\0';
if (!av_strcasecmp(ext1, ext))
return 1;
if (*p == '\0')
break;
p++;
}
}
return 0;
}
static int match_format(const char *name, const char *names)
{
const char *p;
int len, namelen;
if (!name || !names)
return 0;
namelen = strlen(name);
while ((p = strchr(names, ','))) {
len = FFMAX(p - names, namelen);
if (!av_strncasecmp(name, names, len))
return 1;
names = p+1;
}
return !av_strcasecmp(name, names);
}
AVOutputFormat *av_guess_format(const char *short_name, const char *filename,
const char *mime_type)
{
AVOutputFormat *fmt = NULL, *fmt_found;
int score_max, score;
/* specific test for image sequences */
#if CONFIG_IMAGE2_MUXER
if (!short_name && filename &&
av_filename_number_test(filename) &&
ff_guess_image2_codec(filename) != AV_CODEC_ID_NONE) {
return av_guess_format("image2", NULL, NULL);
}
#endif
/* Find the proper file type. */
fmt_found = NULL;
score_max = 0;
while ((fmt = av_oformat_next(fmt))) {
score = 0;
if (fmt->name && short_name && match_format(short_name, fmt->name))
score += 100;
if (fmt->mime_type && mime_type && !strcmp(fmt->mime_type, mime_type))
score += 10;
if (filename && fmt->extensions &&
av_match_ext(filename, fmt->extensions)) {
score += 5;
}
if (score > score_max) {
score_max = score;
fmt_found = fmt;
}
}
return fmt_found;
}
enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
const char *filename, const char *mime_type, enum AVMediaType type){
if (!strcmp(fmt->name, "segment") || !strcmp(fmt->name, "ssegment")) {
fmt = av_guess_format(NULL, filename, NULL);
}
if(type == AVMEDIA_TYPE_VIDEO){
enum AVCodecID codec_id= AV_CODEC_ID_NONE;
#if CONFIG_IMAGE2_MUXER
if(!strcmp(fmt->name, "image2") || !strcmp(fmt->name, "image2pipe")){
codec_id= ff_guess_image2_codec(filename);
}
#endif
if(codec_id == AV_CODEC_ID_NONE)
codec_id= fmt->video_codec;
return codec_id;
}else if(type == AVMEDIA_TYPE_AUDIO)
return fmt->audio_codec;
else if (type == AVMEDIA_TYPE_SUBTITLE)
return fmt->subtitle_codec;
else
return AV_CODEC_ID_NONE;
}
AVInputFormat *av_find_input_format(const char *short_name)
{
AVInputFormat *fmt = NULL;
while ((fmt = av_iformat_next(fmt))) {
if (match_format(short_name, fmt->name))
return fmt;
}
return NULL;
}
/* an arbitrarily chosen "sane" max packet size -- 50M */
#define SANE_CHUNK_SIZE (50000000)