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make guid utility function visibile to other modules (ff_guidcmp, ff_get_guid)

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Originally committed as revision 26093 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Peter Ross 2010-12-26 01:26:29 +00:00
parent 141de5a9c1
commit a750050f4c
2 changed files with 44 additions and 42 deletions
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2
libavformat/asf.h
View File

@ -231,5 +231,7 @@ extern const AVMetadataConv ff_asf_metadata_conv[];
extern AVInputFormat asf_demuxer;
int ff_put_str16_nolen(ByteIOContext *s, const char *tag);
int ff_guidcmp(const void *g1, const void *g2);
void ff_get_guid(ByteIOContext *s, ff_asf_guid *g);
#endif /* AVFORMAT_ASF_H */

84
libavformat/asfdec.c
View File

@ -49,14 +49,14 @@ static const ff_asf_guid stream_bitrate_guid = { /* (http://get.to/sdp) */
/**********************************/
/* decoding */
static int guidcmp(const void *g1, const void *g2)
int ff_guidcmp(const void *g1, const void *g2)
{
return memcmp(g1, g2, sizeof(ff_asf_guid));
}
#ifdef DEBUG
#define PRINT_IF_GUID(g,cmp) \
if (!guidcmp(g, &cmp)) \
if (!ff_guidcmp(g, &cmp)) \
dprintf(NULL, "(GUID: %s) ", #cmp)
static void print_guid(const ff_asf_guid *g)
@ -97,7 +97,7 @@ static void print_guid(const ff_asf_guid *g)
#define print_guid(g)
#endif
static void get_guid(ByteIOContext *s, ff_asf_guid *g)
void ff_get_guid(ByteIOContext *s, ff_asf_guid *g)
{
assert(sizeof(*g) == 16);
get_buffer(s, *g, sizeof(*g));
@ -139,7 +139,7 @@ static void get_str16_nolen(ByteIOContext *pb, int len, char *buf, int buf_size)
static int asf_probe(AVProbeData *pd)
{
/* check file header */
if (!guidcmp(pd->buf, &ff_asf_header))
if (!ff_guidcmp(pd->buf, &ff_asf_header))
return AVPROBE_SCORE_MAX;
else
return 0;
@ -196,8 +196,8 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
memset(dar, 0, sizeof(dar));
memset(bitrate, 0, sizeof(bitrate));
get_guid(pb, &g);
if (guidcmp(&g, &ff_asf_header))
ff_get_guid(pb, &g);
if (ff_guidcmp(&g, &ff_asf_header))
return -1;
get_le64(pb);
get_le32(pb);
@ -206,12 +206,12 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid));
for(;;) {
uint64_t gpos= url_ftell(pb);
get_guid(pb, &g);
ff_get_guid(pb, &g);
gsize = get_le64(pb);
dprintf(s, "%08"PRIx64": ", gpos);
print_guid(&g);
dprintf(s, " size=0x%"PRIx64"\n", gsize);
if (!guidcmp(&g, &ff_asf_data_header)) {
if (!ff_guidcmp(&g, &ff_asf_data_header)) {
asf->data_object_offset = url_ftell(pb);
// if not streaming, gsize is not unlimited (how?), and there is enough space in the file..
if (!(asf->hdr.flags & 0x01) && gsize >= 100) {
@ -223,8 +223,8 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
}
if (gsize < 24)
return -1;
if (!guidcmp(&g, &ff_asf_file_header)) {
get_guid(pb, &asf->hdr.guid);
if (!ff_guidcmp(&g, &ff_asf_file_header)) {
ff_get_guid(pb, &asf->hdr.guid);
asf->hdr.file_size = get_le64(pb);
asf->hdr.create_time = get_le64(pb);
asf->nb_packets = get_le64(pb);
@ -237,7 +237,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
asf->hdr.max_pktsize = get_le32(pb);
asf->hdr.max_bitrate = get_le32(pb);
s->packet_size = asf->hdr.max_pktsize;
} else if (!guidcmp(&g, &ff_asf_stream_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_stream_header)) {
enum AVMediaType type;
int type_specific_size, sizeX;
uint64_t total_size;
@ -268,25 +268,25 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->duration = asf->hdr.play_time /
(10000000 / 1000) - start_time;
}
get_guid(pb, &g);
ff_get_guid(pb, &g);
test_for_ext_stream_audio = 0;
if (!guidcmp(&g, &ff_asf_audio_stream)) {
if (!ff_guidcmp(&g, &ff_asf_audio_stream)) {
type = AVMEDIA_TYPE_AUDIO;
} else if (!guidcmp(&g, &ff_asf_video_stream)) {
} else if (!ff_guidcmp(&g, &ff_asf_video_stream)) {
type = AVMEDIA_TYPE_VIDEO;
} else if (!guidcmp(&g, &ff_asf_jfif_media)) {
} else if (!ff_guidcmp(&g, &ff_asf_jfif_media)) {
type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_MJPEG;
} else if (!guidcmp(&g, &ff_asf_command_stream)) {
} else if (!ff_guidcmp(&g, &ff_asf_command_stream)) {
type = AVMEDIA_TYPE_DATA;
} else if (!guidcmp(&g, &ff_asf_ext_stream_embed_stream_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_ext_stream_embed_stream_header)) {
test_for_ext_stream_audio = 1;
type = AVMEDIA_TYPE_UNKNOWN;
} else {
return -1;
}
get_guid(pb, &g);
ff_get_guid(pb, &g);
total_size = get_le64(pb);
type_specific_size = get_le32(pb);
get_le32(pb);
@ -297,15 +297,15 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
get_le32(pb);
if (test_for_ext_stream_audio) {
get_guid(pb, &g);
if (!guidcmp(&g, &ff_asf_ext_stream_audio_stream)) {
ff_get_guid(pb, &g);
if (!ff_guidcmp(&g, &ff_asf_ext_stream_audio_stream)) {
type = AVMEDIA_TYPE_AUDIO;
is_dvr_ms_audio=1;
get_guid(pb, &g);
ff_get_guid(pb, &g);
get_le32(pb);
get_le32(pb);
get_le32(pb);
get_guid(pb, &g);
ff_get_guid(pb, &g);
get_le32(pb);
}
}
@ -413,7 +413,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
}
pos2 = url_ftell(pb);
url_fskip(pb, gsize - (pos2 - pos1 + 24));
} else if (!guidcmp(&g, &ff_asf_comment_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_comment_header)) {
int len1, len2, len3, len4, len5;
len1 = get_le16(pb);
@ -426,7 +426,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
get_tag(s, "copyright", 0, len3);
get_tag(s, "comment" , 0, len4);
url_fskip(pb, len5);
} else if (!guidcmp(&g, &stream_bitrate_guid)) {
} else if (!ff_guidcmp(&g, &stream_bitrate_guid)) {
int stream_count = get_le16(pb);
int j;
@ -441,7 +441,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
// av_log(s, AV_LOG_ERROR, "flags: 0x%x stream id %d, bitrate %d\n", flags, stream_id, bitrate);
asf->stream_bitrates[stream_id]= bitrate;
}
} else if (!guidcmp(&g, &ff_asf_language_guid)) {
} else if (!ff_guidcmp(&g, &ff_asf_language_guid)) {
int j;
int stream_count = get_le16(pb);
for(j = 0; j < stream_count; j++) {
@ -451,7 +451,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
if (j < 128)
av_strlcpy(asf->stream_languages[j], lang, sizeof(*asf->stream_languages));
}
} else if (!guidcmp(&g, &ff_asf_extended_content_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_extended_content_header)) {
int desc_count, i;
desc_count = get_le16(pb);
@ -478,7 +478,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
} else
get_tag(s, name, value_type, value_len);
}
} else if (!guidcmp(&g, &ff_asf_metadata_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_metadata_header)) {
int n, stream_num, name_len, value_len, value_type, value_num;
n = get_le16(pb);
@ -501,7 +501,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
else if(!strcmp(name, "AspectRatioY")) dar[stream_num].den= value_num;
}
}
} else if (!guidcmp(&g, &ff_asf_ext_stream_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_ext_stream_header)) {
int ext_len, payload_ext_ct, stream_ct;
uint32_t ext_d, leak_rate, stream_num;
unsigned int stream_languageid_index;
@ -536,7 +536,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
}
for (i=0; i<payload_ext_ct; i++){
get_guid(pb, &g);
ff_get_guid(pb, &g);
ext_d=get_le16(pb);
ext_len=get_le32(pb);
url_fseek(pb, ext_len, SEEK_CUR);
@ -545,13 +545,13 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
// there could be a optional stream properties object to follow
// if so the next iteration will pick it up
continue;
} else if (!guidcmp(&g, &ff_asf_head1_guid)) {
} else if (!ff_guidcmp(&g, &ff_asf_head1_guid)) {
int v1, v2;
get_guid(pb, &g);
ff_get_guid(pb, &g);
v1 = get_le32(pb);
v2 = get_le16(pb);
continue;
} else if (!guidcmp(&g, &ff_asf_marker_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_marker_header)) {
int i, count, name_len;
char name[1024];
@ -578,12 +578,12 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
ff_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
}
#if 0
} else if (!guidcmp(&g, &ff_asf_codec_comment_header)) {
} else if (!ff_guidcmp(&g, &ff_asf_codec_comment_header)) {
int len, v1, n, num;
char str[256], *q;
char tag[16];
get_guid(pb, &g);
ff_get_guid(pb, &g);
print_guid(&g);
n = get_le32(pb);
@ -606,11 +606,11 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
return -1;
} else {
if (!s->keylen) {
if (!guidcmp(&g, &ff_asf_content_encryption)) {
if (!ff_guidcmp(&g, &ff_asf_content_encryption)) {
av_log(s, AV_LOG_WARNING, "DRM protected stream detected, decoding will likely fail!\n");
} else if (!guidcmp(&g, &ff_asf_ext_content_encryption)) {
} 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");
} else if (!guidcmp(&g, &ff_asf_digital_signature)) {
} else if (!ff_guidcmp(&g, &ff_asf_digital_signature)) {
av_log(s, AV_LOG_WARNING, "Digital signature detected, decoding will likely fail!\n");
}
}
@ -619,7 +619,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
av_log(s, AV_LOG_DEBUG, "gpos mismatch our pos=%"PRIu64", end=%"PRIu64"\n", url_ftell(pb)-gpos, gsize);
url_fseek(pb, gpos + gsize, SEEK_SET);
}
get_guid(pb, &g);
ff_get_guid(pb, &g);
get_le64(pb);
get_byte(pb);
get_byte(pb);
@ -1153,25 +1153,25 @@ static void asf_build_simple_index(AVFormatContext *s, int stream_index)
int i;
url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET);
get_guid(s->pb, &g);
ff_get_guid(s->pb, &g);
/* the data object can be followed by other top-level objects,
skip them until the simple index object is reached */
while (guidcmp(&g, &index_guid)) {
while (ff_guidcmp(&g, &index_guid)) {
int64_t gsize= get_le64(s->pb);
if (gsize < 24 || url_feof(s->pb)) {
url_fseek(s->pb, current_pos, SEEK_SET);
return;
}
url_fseek(s->pb, gsize-24, SEEK_CUR);
get_guid(s->pb, &g);
ff_get_guid(s->pb, &g);
}
{
int64_t itime, last_pos=-1;
int pct, ict;
int64_t av_unused gsize= get_le64(s->pb);
get_guid(s->pb, &g);
ff_get_guid(s->pb, &g);
itime=get_le64(s->pb);
pct=get_le32(s->pb);
ict=get_le32(s->pb);