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asf: export encryption information from asf.

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This way user apps can choose to skip such content.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2011-10-16 04:41:11 +02:00
parent 2822361ed1
commit 410c06d2f3
1 changed files with 2 additions and 0 deletions
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2
libavformat/asfdec.c
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@@ -637,8 +637,10 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
if (!s->keylen) {
if (!ff_guidcmp(&g, &ff_asf_content_encryption)) {
av_log(s, AV_LOG_WARNING, "DRM protected stream detected, decoding will likely fail!\n");
av_dict_set(&s->metadata, "encryption", "ASF Content Encryption", 0);
} else if (!ff_guidcmp(&g, &ff_asf_ext_content_encryption)) {
av_log(s, AV_LOG_WARNING, "Ext DRM protected stream detected, decoding will likely fail!\n");
av_dict_set(&s->metadata, "encryption", "ASF Extended Content Encryption", 0);
} else if (!ff_guidcmp(&g, &ff_asf_digital_signature)) {
av_log(s, AV_LOG_WARNING, "Digital signature detected, decoding will likely fail!\n");
}