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Add -lavfdopts cryptokey

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24785 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2007-10-14 12:11:28 +00:00
parent b74521d77b
commit 7713841e4d
2 changed files with 27 additions and 0 deletions
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5
DOCS/man/en/mplayer.1
View File

@ -10154,6 +10154,11 @@ Maximum amount of data to probe during the detection phase.
In the case of MPEG-TS this value identifies the maximum number
of TS packets to scan.
.
.TP
.B cryptokey=<hexstring>
Encryption key the demuxer should use.
This is the raw binary data of the key converted to a hexadecimal string.
.
.
.
.SS FFmpeg libavformat muxers (\-lavfopts) (also see \-of lavf)

22
libmpdemux/demux_lavf.c
View File

@ -49,11 +49,13 @@ extern char *audio_lang;
static unsigned int opt_probesize = 0;
static unsigned int opt_analyzeduration = 0;
static char *opt_format;
static char *opt_cryptokey;
m_option_t lavfdopts_conf[] = {
{"probesize", &(opt_probesize), CONF_TYPE_INT, CONF_RANGE, 32, INT_MAX, NULL},
{"format", &(opt_format), CONF_TYPE_STRING, 0, 0, 0, NULL},
{"analyzeduration", &(opt_analyzeduration), CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
{"cryptokey", &(opt_cryptokey), CONF_TYPE_STRING, 0, 0, 0, NULL},
{NULL, NULL, 0, 0, 0, 0, NULL}
};
@ -250,6 +252,23 @@ static int lavf_check_preferred_file(demuxer_t *demuxer){
return 0;
}
static uint8_t char2int(char c) {
if (c >= '0' && c <= '9') return c - '0';
if (c >= 'a' && c <= 'f') return c - 'a' + 10;
if (c >= 'A' && c <= 'F') return c - 'A' + 10;
return 0;
}
static void parse_cryptokey(AVFormatContext *avfc, const char *str) {
int len = strlen(str) / 2;
uint8_t *key = av_mallocz(len);
int i;
avfc->keylen = len;
avfc->key = key;
for (i = 0; i < len; i++, str += 2)
*key++ = (char2int(str[0]) << 4) | char2int(str[1]);
}
static demuxer_t* demux_open_lavf(demuxer_t *demuxer){
AVFormatContext *avfc;
AVFormatParameters ap;
@ -266,6 +285,8 @@ static demuxer_t* demux_open_lavf(demuxer_t *demuxer){
avfc = av_alloc_format_context();
if (opt_cryptokey)
parse_cryptokey(avfc, opt_cryptokey);
if (correct_pts)
avfc->flags |= AVFMT_FLAG_GENPTS;
if (index_mode == 0)
@ -668,6 +689,7 @@ static void demux_close_lavf(demuxer_t *demuxer)
if (priv){
if(priv->avfc)
{
av_freep(&priv->avfc->key);
av_close_input_file(priv->avfc); priv->avfc= NULL;
}
free(priv); demuxer->priv= NULL;