avf: split off format register and lookup function

1 files changed, 0 insertions, 146 deletions

diff --git a/libavformat/utils.c b/libavformat/utils.c
index f415eae45c..951f3f13b4 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -66,152 +66,6 @@ const char *avformat_license(void)
     return LICENSE_PREFIX LIBAV_LICENSE + sizeof(LICENSE_PREFIX) - 1;
 }
 
-/** 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 && !av_strcasecmp(fmt->name, short_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(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)