static int framemd5_write_header(struct AVFormatContext *s)
{
struct MD5Context *c = s->priv_data;
int res = av_hash_alloc(&c->hash, c->hash_name);
if (res < 0)
return res;
return ff_framehash_write_header(s);
}
static int framemd5_write_header(struct AVFormatContext *s)
{
struct MD5Context *c = s->priv_data;
c->md5 = av_md5_alloc();
if (!c->md5)
return AVERROR(ENOMEM);
return ff_framehash_write_header(s);
}
static int framehash_write_header(struct AVFormatContext *s)
{
struct HashContext *c = s->priv_data;
int res = av_hash_alloc(&c->hash, c->hash_name);
if (res < 0)
return res;
avio_printf(s->pb, "#format: frame checksums\n");
avio_printf(s->pb, "#version: %d\n", c->format_version);
avio_printf(s->pb, "#hash: %s\n", av_hash_get_name(c->hash));
ff_framehash_write_header(s, c->format_version);
avio_printf(s->pb, "#stream#, dts, pts, duration, size, hash\n");
return 0;
}
static int framecrc_write_header(struct AVFormatContext *s)
{
int i;
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
AVCodecContext *avctx = st->codec;
if (avctx->extradata) {
uint32_t crc = av_adler32_update(0, avctx->extradata, avctx->extradata_size);
avio_printf(s->pb, "#extradata %d: %8d, 0x%08"PRIx32"\n",
i, avctx->extradata_size, crc);
}
}
return ff_framehash_write_header(s);
}
