Function hash_init

libavformat/hashenc.c:86–99

#if CONFIG_HASH_MUXER || CONFIG_MD5_MUXER
static int hash_init(struct AVFormatContext *s)
{
    int res;
    struct HashContext *c = s->priv_data;
    c->per_stream = 0;
    c->hashes = av_mallocz(sizeof(*c->hashes));
    if (!c->hashes)
        return AVERROR(ENOMEM);
    res = av_hash_alloc(&c->hashes[0], c->hash_name);
    if (res < 0)
        return res;
    av_hash_init(c->hashes[0]);
    return 0;
}
#endif

#if CONFIG_STREAMHASH_MUXER