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Code Issues Releases Wiki Activity

warn users about drm files, patch by zuxy meng

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22427 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
compn 2007-03-03 21:33:40 +00:00
parent bad67f49c3
commit 66d4061303
1 changed files with 46 additions and 0 deletions
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46
libmpdemux/asfheader.c
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@ -62,6 +62,8 @@ const char asf_ext_stream_header[16] = {0xCB, 0xA5, 0xE6, 0x14,
0x72, 0xC6, 0x32, 0x43, 0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A};
const char asf_metadata_header[16] = {0xea, 0xcb, 0xf8, 0xc5,
0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 0x44, 0xfa, 0x4c, 0xca};
const char asf_content_encryption[16] = {0xfb, 0xb3, 0x11, 0x22,
0x23, 0xbd, 0xd2, 0x11, 0xb4, 0xb7, 0x00, 0xa0, 0xc9, 0x55, 0xfc, 0x6e};
typedef struct {
// must be 0 for metadata record, might be non-zero for metadata lib record
@ -283,6 +285,47 @@ static int get_meta(char *buf, int buf_len, int this_stream_num,
return 0;
}
static int is_drm(char* buf, int buf_len)
{
uint32_t data_len, type_len, key_len, url_len;
int pos = find_asf_guid(buf, asf_content_encryption, 0, buf_len);
if (pos < 0)
return 0;
CHECKDEC(buf_len, pos + 4);
buf += pos;
data_len = AV_RL32(buf);
buf += 4;
CHECKDEC(buf_len, data_len);
buf += data_len;
type_len = AV_RL32(buf);
if (type_len < 4)
return 0;
CHECKDEC(buf_len, 4 + type_len + 4);
buf += 4;
if (buf[0] != 'D' || buf[1] != 'R' || buf[2] != 'M' || buf[3] != '\0')
return 0;
buf += type_len;
key_len = AV_RL32(buf);
CHECKDEC(buf_len, key_len + 4);
buf += 4;
buf[key_len - 1] = '\0';
mp_msg(MSGT_HEADER, MSGL_V, "DRM Key ID: %s\n", buf);
buf += key_len;
url_len = AV_RL32(buf);
CHECKDEC(buf_len, url_len);
buf += 4;
buf[url_len - 1] = '\0';
mp_msg(MSGT_HEADER, MSGL_INFO, MSGTR_MPDEMUX_ASFHDR_DRMLicenseURL, buf);
return 1;
}
static int asf_init_audio_stream(demuxer_t *demuxer,struct asf_priv* asf, sh_audio_t* sh_audio, ASF_stream_header_t *streamh, int *ppos, uint8_t** buf, char *hdr, unsigned int hdr_len)
{
uint8_t *buffer = *buf;
@ -351,6 +394,9 @@ int read_asf_header(demuxer_t *demuxer,struct asf_priv* asf){
goto err_out;
}
if (is_drm(hdr, hdr_len))
mp_msg(MSGT_HEADER, MSGL_FATAL, MSGTR_MPDEMUX_ASFHDR_DRMProtected);
if ((pos = find_asf_guid(hdr, asf_ext_stream_audio, 0, hdr_len)) >= 0)
{
// Special case: found GUID for dvr-ms audio.