mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
asfdec: split asf_read_header()
Only trivial splits are done here -- i.e. copy/paste + reindent + missing variable declarations. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
This commit is contained in:
Anton Khirnov
Ronald S. Bultje
parent
68137ba386
commit
c1fea23070
@ -184,6 +184,213 @@ finish:
|
||||
url_fseek(s->pb, off + len, SEEK_SET);
|
||||
}
|
||||
|
||||
static int asf_read_file_properties(AVFormatContext *s, int64_t size)
|
||||
{
|
||||
ASFContext *asf = s->priv_data;
|
||||
ByteIOContext *pb = s->pb;
|
||||
|
||||
ff_get_guid(pb, &asf->hdr.guid);
|
||||
asf->hdr.file_size = get_le64(pb);
|
||||
asf->hdr.create_time = get_le64(pb);
|
||||
get_le64(pb); /* number of packets */
|
||||
asf->hdr.play_time = get_le64(pb);
|
||||
asf->hdr.send_time = get_le64(pb);
|
||||
asf->hdr.preroll = get_le32(pb);
|
||||
asf->hdr.ignore = get_le32(pb);
|
||||
asf->hdr.flags = get_le32(pb);
|
||||
asf->hdr.min_pktsize = get_le32(pb);
|
||||
asf->hdr.max_pktsize = get_le32(pb);
|
||||
asf->hdr.max_bitrate = get_le32(pb);
|
||||
s->packet_size = asf->hdr.max_pktsize;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int asf_read_ext_stream_properties(AVFormatContext *s, int64_t size)
|
||||
{
|
||||
ASFContext *asf = s->priv_data;
|
||||
ByteIOContext *pb = s->pb;
|
||||
ff_asf_guid g;
|
||||
int ext_len, payload_ext_ct, stream_ct, i;
|
||||
uint32_t ext_d, leak_rate, stream_num;
|
||||
unsigned int stream_languageid_index;
|
||||
|
||||
get_le64(pb); // starttime
|
||||
get_le64(pb); // endtime
|
||||
leak_rate = get_le32(pb); // leak-datarate
|
||||
get_le32(pb); // bucket-datasize
|
||||
get_le32(pb); // init-bucket-fullness
|
||||
get_le32(pb); // alt-leak-datarate
|
||||
get_le32(pb); // alt-bucket-datasize
|
||||
get_le32(pb); // alt-init-bucket-fullness
|
||||
get_le32(pb); // max-object-size
|
||||
get_le32(pb); // flags (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved)
|
||||
stream_num = get_le16(pb); // stream-num
|
||||
|
||||
stream_languageid_index = get_le16(pb); // stream-language-id-index
|
||||
if (stream_num < 128)
|
||||
asf->streams[stream_num].stream_language_index = stream_languageid_index;
|
||||
|
||||
get_le64(pb); // avg frametime in 100ns units
|
||||
stream_ct = get_le16(pb); //stream-name-count
|
||||
payload_ext_ct = get_le16(pb); //payload-extension-system-count
|
||||
|
||||
if (stream_num < 128)
|
||||
asf->stream_bitrates[stream_num] = leak_rate;
|
||||
|
||||
for (i=0; i<stream_ct; i++){
|
||||
get_le16(pb);
|
||||
ext_len = get_le16(pb);
|
||||
url_fseek(pb, ext_len, SEEK_CUR);
|
||||
}
|
||||
|
||||
for (i=0; i<payload_ext_ct; i++){
|
||||
ff_get_guid(pb, &g);
|
||||
ext_d=get_le16(pb);
|
||||
ext_len=get_le32(pb);
|
||||
url_fseek(pb, ext_len, SEEK_CUR);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int asf_read_content_desc(AVFormatContext *s, int64_t size)
|
||||
{
|
||||
ByteIOContext *pb = s->pb;
|
||||
int len1, len2, len3, len4, len5;
|
||||
|
||||
len1 = get_le16(pb);
|
||||
len2 = get_le16(pb);
|
||||
len3 = get_le16(pb);
|
||||
len4 = get_le16(pb);
|
||||
len5 = get_le16(pb);
|
||||
get_tag(s, "title" , 0, len1);
|
||||
get_tag(s, "author" , 0, len2);
|
||||
get_tag(s, "copyright", 0, len3);
|
||||
get_tag(s, "comment" , 0, len4);
|
||||
url_fskip(pb, len5);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int asf_read_ext_content_desc(AVFormatContext *s, int64_t size)
|
||||
{
|
||||
ByteIOContext *pb = s->pb;
|
||||
ASFContext *asf = s->priv_data;
|
||||
int desc_count, i, ret;
|
||||
|
||||
desc_count = get_le16(pb);
|
||||
for(i=0;i<desc_count;i++) {
|
||||
int name_len,value_type,value_len;
|
||||
char name[1024];
|
||||
|
||||
name_len = get_le16(pb);
|
||||
if (name_len%2) // must be even, broken lavf versions wrote len-1
|
||||
name_len += 1;
|
||||
if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
|
||||
url_fskip(pb, name_len - ret);
|
||||
value_type = get_le16(pb);
|
||||
value_len = get_le16(pb);
|
||||
if (!value_type && value_len%2)
|
||||
value_len += 1;
|
||||
/**
|
||||
* My sample has that stream set to 0 maybe that mean the container.
|
||||
* Asf stream count start at 1. I am using 0 to the container value since it's unused
|
||||
*/
|
||||
if (!strcmp(name, "AspectRatioX")){
|
||||
asf->dar[0].num= get_value(s->pb, value_type);
|
||||
} else if(!strcmp(name, "AspectRatioY")){
|
||||
asf->dar[0].den= get_value(s->pb, value_type);
|
||||
} else
|
||||
get_tag(s, name, value_type, value_len);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int asf_read_language_list(AVFormatContext *s, int64_t size)
|
||||
{
|
||||
ByteIOContext *pb = s->pb;
|
||||
ASFContext *asf = s->priv_data;
|
||||
int j, ret;
|
||||
int stream_count = get_le16(pb);
|
||||
for(j = 0; j < stream_count; j++) {
|
||||
char lang[6];
|
||||
unsigned int lang_len = get_byte(pb);
|
||||
if ((ret = avio_get_str16le(pb, lang_len, lang, sizeof(lang))) < lang_len)
|
||||
url_fskip(pb, lang_len - ret);
|
||||
if (j < 128)
|
||||
av_strlcpy(asf->stream_languages[j], lang, sizeof(*asf->stream_languages));
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int asf_read_metadata(AVFormatContext *s, int64_t size)
|
||||
{
|
||||
ByteIOContext *pb = s->pb;
|
||||
ASFContext *asf = s->priv_data;
|
||||
int n, stream_num, name_len, value_len, value_type, value_num;
|
||||
int ret, i;
|
||||
n = get_le16(pb);
|
||||
|
||||
for(i=0;i<n;i++) {
|
||||
char name[1024];
|
||||
|
||||
get_le16(pb); //lang_list_index
|
||||
stream_num= get_le16(pb);
|
||||
name_len= get_le16(pb);
|
||||
value_type= get_le16(pb);
|
||||
value_len= get_le32(pb);
|
||||
|
||||
if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
|
||||
url_fskip(pb, name_len - ret);
|
||||
//av_log(s, AV_LOG_ERROR, "%d %d %d %d %d <%s>\n", i, stream_num, name_len, value_type, value_len, name);
|
||||
value_num= get_le16(pb);//we should use get_value() here but it does not work 2 is le16 here but le32 elsewhere
|
||||
url_fskip(pb, value_len - 2);
|
||||
|
||||
if(stream_num<128){
|
||||
if (!strcmp(name, "AspectRatioX")) asf->dar[stream_num].num= value_num;
|
||||
else if(!strcmp(name, "AspectRatioY")) asf->dar[stream_num].den= value_num;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int asf_read_marker(AVFormatContext *s, int64_t size)
|
||||
{
|
||||
ByteIOContext *pb = s->pb;
|
||||
int i, count, name_len, ret;
|
||||
char name[1024];
|
||||
|
||||
get_le64(pb); // reserved 16 bytes
|
||||
get_le64(pb); // ...
|
||||
count = get_le32(pb); // markers count
|
||||
get_le16(pb); // reserved 2 bytes
|
||||
name_len = get_le16(pb); // name length
|
||||
for(i=0;i<name_len;i++){
|
||||
get_byte(pb); // skip the name
|
||||
}
|
||||
|
||||
for(i=0;i<count;i++){
|
||||
int64_t pres_time;
|
||||
int name_len;
|
||||
|
||||
get_le64(pb); // offset, 8 bytes
|
||||
pres_time = get_le64(pb); // presentation time
|
||||
get_le16(pb); // entry length
|
||||
get_le32(pb); // send time
|
||||
get_le32(pb); // flags
|
||||
name_len = get_le32(pb); // name length
|
||||
if ((ret = avio_get_str16le(pb, name_len * 2, name, sizeof(name))) < name_len)
|
||||
url_fskip(pb, name_len - ret);
|
||||
ff_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
|
||||
{
|
||||
ASFContext *asf = s->priv_data;
|
||||
@ -204,7 +411,6 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
|
||||
memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid));
|
||||
for(;;) {
|
||||
uint64_t gpos= url_ftell(pb);
|
||||
int ret;
|
||||
ff_get_guid(pb, &g);
|
||||
gsize = get_le64(pb);
|
||||
av_dlog(s, "%08"PRIx64": ", gpos);
|
||||
@ -223,19 +429,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
|
||||
if (gsize < 24)
|
||||
return -1;
|
||||
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);
|
||||
get_le64(pb); /* number of packets */
|
||||
asf->hdr.play_time = get_le64(pb);
|
||||
asf->hdr.send_time = get_le64(pb);
|
||||
asf->hdr.preroll = get_le32(pb);
|
||||
asf->hdr.ignore = get_le32(pb);
|
||||
asf->hdr.flags = get_le32(pb);
|
||||
asf->hdr.min_pktsize = get_le32(pb);
|
||||
asf->hdr.max_pktsize = get_le32(pb);
|
||||
asf->hdr.max_bitrate = get_le32(pb);
|
||||
s->packet_size = asf->hdr.max_pktsize;
|
||||
asf_read_file_properties(s, gsize);
|
||||
} else if (!ff_guidcmp(&g, &ff_asf_stream_header)) {
|
||||
enum AVMediaType type;
|
||||
int type_specific_size, sizeX;
|
||||
@ -413,121 +607,15 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
|
||||
pos2 = url_ftell(pb);
|
||||
url_fskip(pb, gsize - (pos2 - pos1 + 24));
|
||||
} else if (!ff_guidcmp(&g, &ff_asf_comment_header)) {
|
||||
int len1, len2, len3, len4, len5;
|
||||
|
||||
len1 = get_le16(pb);
|
||||
len2 = get_le16(pb);
|
||||
len3 = get_le16(pb);
|
||||
len4 = get_le16(pb);
|
||||
len5 = get_le16(pb);
|
||||
get_tag(s, "title" , 0, len1);
|
||||
get_tag(s, "author" , 0, len2);
|
||||
get_tag(s, "copyright", 0, len3);
|
||||
get_tag(s, "comment" , 0, len4);
|
||||
url_fskip(pb, len5);
|
||||
asf_read_content_desc(s, gsize);
|
||||
} else if (!ff_guidcmp(&g, &ff_asf_language_guid)) {
|
||||
int j;
|
||||
int stream_count = get_le16(pb);
|
||||
for(j = 0; j < stream_count; j++) {
|
||||
char lang[6];
|
||||
unsigned int lang_len = get_byte(pb);
|
||||
if ((ret = avio_get_str16le(pb, lang_len, lang, sizeof(lang))) < lang_len)
|
||||
url_fskip(pb, lang_len - ret);
|
||||
if (j < 128)
|
||||
av_strlcpy(asf->stream_languages[j], lang, sizeof(*asf->stream_languages));
|
||||
}
|
||||
asf_read_language_list(s, gsize);
|
||||
} else if (!ff_guidcmp(&g, &ff_asf_extended_content_header)) {
|
||||
int desc_count, i;
|
||||
|
||||
desc_count = get_le16(pb);
|
||||
for(i=0;i<desc_count;i++) {
|
||||
int name_len,value_type,value_len;
|
||||
char name[1024];
|
||||
|
||||
name_len = get_le16(pb);
|
||||
if (name_len%2) // must be even, broken lavf versions wrote len-1
|
||||
name_len += 1;
|
||||
if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
|
||||
url_fskip(pb, name_len - ret);
|
||||
value_type = get_le16(pb);
|
||||
value_len = get_le16(pb);
|
||||
if (!value_type && value_len%2)
|
||||
value_len += 1;
|
||||
/**
|
||||
* My sample has that stream set to 0 maybe that mean the container.
|
||||
* Asf stream count start at 1. I am using 0 to the container value since it's unused
|
||||
*/
|
||||
if (!strcmp(name, "AspectRatioX")){
|
||||
asf->dar[0].num= get_value(s->pb, value_type);
|
||||
} else if(!strcmp(name, "AspectRatioY")){
|
||||
asf->dar[0].den= get_value(s->pb, value_type);
|
||||
} else
|
||||
get_tag(s, name, value_type, value_len);
|
||||
}
|
||||
asf_read_ext_content_desc(s, gsize);
|
||||
} 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);
|
||||
|
||||
for(i=0;i<n;i++) {
|
||||
char name[1024];
|
||||
|
||||
get_le16(pb); //lang_list_index
|
||||
stream_num= get_le16(pb);
|
||||
name_len= get_le16(pb);
|
||||
value_type= get_le16(pb);
|
||||
value_len= get_le32(pb);
|
||||
|
||||
if ((ret = avio_get_str16le(pb, name_len, name, sizeof(name))) < name_len)
|
||||
url_fskip(pb, name_len - ret);
|
||||
//av_log(s, AV_LOG_ERROR, "%d %d %d %d %d <%s>\n", i, stream_num, name_len, value_type, value_len, name);
|
||||
value_num= get_le16(pb);//we should use get_value() here but it does not work 2 is le16 here but le32 elsewhere
|
||||
url_fskip(pb, value_len - 2);
|
||||
|
||||
if(stream_num<128){
|
||||
if (!strcmp(name, "AspectRatioX")) asf->dar[stream_num].num= value_num;
|
||||
else if(!strcmp(name, "AspectRatioY")) asf->dar[stream_num].den= value_num;
|
||||
}
|
||||
}
|
||||
asf_read_metadata(s, gsize);
|
||||
} 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;
|
||||
|
||||
get_le64(pb); // starttime
|
||||
get_le64(pb); // endtime
|
||||
leak_rate = get_le32(pb); // leak-datarate
|
||||
get_le32(pb); // bucket-datasize
|
||||
get_le32(pb); // init-bucket-fullness
|
||||
get_le32(pb); // alt-leak-datarate
|
||||
get_le32(pb); // alt-bucket-datasize
|
||||
get_le32(pb); // alt-init-bucket-fullness
|
||||
get_le32(pb); // max-object-size
|
||||
get_le32(pb); // flags (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved)
|
||||
stream_num = get_le16(pb); // stream-num
|
||||
|
||||
stream_languageid_index = get_le16(pb); // stream-language-id-index
|
||||
if (stream_num < 128)
|
||||
asf->streams[stream_num].stream_language_index = stream_languageid_index;
|
||||
|
||||
get_le64(pb); // avg frametime in 100ns units
|
||||
stream_ct = get_le16(pb); //stream-name-count
|
||||
payload_ext_ct = get_le16(pb); //payload-extension-system-count
|
||||
|
||||
if (stream_num < 128)
|
||||
asf->stream_bitrates[stream_num] = leak_rate;
|
||||
|
||||
for (i=0; i<stream_ct; i++){
|
||||
get_le16(pb);
|
||||
ext_len = get_le16(pb);
|
||||
url_fseek(pb, ext_len, SEEK_CUR);
|
||||
}
|
||||
|
||||
for (i=0; i<payload_ext_ct; i++){
|
||||
ff_get_guid(pb, &g);
|
||||
ext_d=get_le16(pb);
|
||||
ext_len=get_le32(pb);
|
||||
url_fseek(pb, ext_len, SEEK_CUR);
|
||||
}
|
||||
asf_read_ext_stream_properties(s, gsize);
|
||||
|
||||
// there could be a optional stream properties object to follow
|
||||
// if so the next iteration will pick it up
|
||||
@ -539,32 +627,7 @@ static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap)
|
||||
v2 = get_le16(pb);
|
||||
continue;
|
||||
} else if (!ff_guidcmp(&g, &ff_asf_marker_header)) {
|
||||
int i, count, name_len;
|
||||
char name[1024];
|
||||
|
||||
get_le64(pb); // reserved 16 bytes
|
||||
get_le64(pb); // ...
|
||||
count = get_le32(pb); // markers count
|
||||
get_le16(pb); // reserved 2 bytes
|
||||
name_len = get_le16(pb); // name length
|
||||
for(i=0;i<name_len;i++){
|
||||
get_byte(pb); // skip the name
|
||||
}
|
||||
|
||||
for(i=0;i<count;i++){
|
||||
int64_t pres_time;
|
||||
int name_len;
|
||||
|
||||
get_le64(pb); // offset, 8 bytes
|
||||
pres_time = get_le64(pb); // presentation time
|
||||
get_le16(pb); // entry length
|
||||
get_le32(pb); // send time
|
||||
get_le32(pb); // flags
|
||||
name_len = get_le32(pb); // name length
|
||||
if ((ret = avio_get_str16le(pb, name_len * 2, name, sizeof(name))) < name_len)
|
||||
url_fskip(pb, name_len - ret);
|
||||
ff_new_chapter(s, i, (AVRational){1, 10000000}, pres_time, AV_NOPTS_VALUE, name );
|
||||
}
|
||||
asf_read_marker(s, gsize);
|
||||
} else if (url_feof(pb)) {
|
||||
return -1;
|
||||
} else {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user