#include <assert.h>
static int get_str(ByteIOContext *bc, char *string, unsigned int maxlen){
- unsigned int len= get_v(bc);
+ unsigned int len= ff_get_v(bc);
if(len && maxlen)
get_buffer(bc, string, FFMIN(len, maxlen));
}
static int64_t get_s(ByteIOContext *bc){
- int64_t v = get_v(bc) + 1;
+ int64_t v = ff_get_v(bc) + 1;
if (v&1) return -(v>>1);
else return (v>>1);
}
static uint64_t get_fourcc(ByteIOContext *bc){
- unsigned int len= get_v(bc);
+ unsigned int len= ff_get_v(bc);
if (len==2) return get_le16(bc);
else if(len==4) return get_le32(bc);
#ifdef TRACE
static inline uint64_t get_v_trace(ByteIOContext *bc, char *file, char *func, int line){
- uint64_t v= get_v(bc);
+ uint64_t v= ff_get_v(bc);
av_log(NULL, AV_LOG_DEBUG, "get_v %5"PRId64" / %"PRIX64" in %s %s:%d\n", v, v, file, func, line);
return v;
av_log(NULL, AV_LOG_DEBUG, "get_vb %5"PRId64" / %"PRIX64" in %s %s:%d\n", v, v, file, func, line);
return v;
}
-#define get_v(bc) get_v_trace(bc, __FILE__, __PRETTY_FUNCTION__, __LINE__)
+#define ff_get_v(bc) get_v_trace(bc, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#define get_s(bc) get_s_trace(bc, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#define get_vb(bc) get_vb_trace(bc, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#endif
startcode= ff_crc04C11DB7_update(0, &startcode, 8);
init_checksum(bc, ff_crc04C11DB7_update, startcode);
- size= get_v(bc);
+ size= ff_get_v(bc);
if(size > 4096)
get_be32(bc);
if(get_checksum(bc) && size > 4096)
}
#define GET_V(dst, check) \
- tmp= get_v(bc);\
+ tmp= ff_get_v(bc);\
if(!(check)){\
av_log(s, AV_LOG_ERROR, "Error " #dst " is (%"PRId64")\n", tmp);\
return -1;\
static int decode_main_header(NUTContext *nut){
AVFormatContext *s= nut->avf;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
uint64_t tmp, end;
unsigned int stream_count;
int i, j, tmp_stream, tmp_mul, tmp_pts, tmp_size, count, tmp_res;
GET_V(tmp , tmp >=2 && tmp <= 3)
GET_V(stream_count , tmp > 0 && tmp <=MAX_STREAMS)
- nut->max_distance = get_v(bc);
+ nut->max_distance = ff_get_v(bc);
if(nut->max_distance > 65536){
av_log(s, AV_LOG_DEBUG, "max_distance %d\n", nut->max_distance);
nut->max_distance= 65536;
tmp_mul=1;
tmp_stream=0;
for(i=0; i<256;){
- int tmp_flags = get_v(bc);
- int tmp_fields= get_v(bc);
+ int tmp_flags = ff_get_v(bc);
+ int tmp_fields= ff_get_v(bc);
if(tmp_fields>0) tmp_pts = get_s(bc);
- if(tmp_fields>1) tmp_mul = get_v(bc);
- if(tmp_fields>2) tmp_stream= get_v(bc);
- if(tmp_fields>3) tmp_size = get_v(bc);
+ if(tmp_fields>1) tmp_mul = ff_get_v(bc);
+ if(tmp_fields>2) tmp_stream= ff_get_v(bc);
+ if(tmp_fields>3) tmp_size = ff_get_v(bc);
else tmp_size = 0;
- if(tmp_fields>4) tmp_res = get_v(bc);
+ if(tmp_fields>4) tmp_res = ff_get_v(bc);
else tmp_res = 0;
- if(tmp_fields>5) count = get_v(bc);
+ if(tmp_fields>5) count = ff_get_v(bc);
else count = tmp_mul - tmp_size;
while(tmp_fields-- > 6)
- get_v(bc);
+ ff_get_v(bc);
if(count == 0 || i+count > 256){
av_log(s, AV_LOG_ERROR, "illegal count %d at %d\n", count, i);
static int decode_stream_header(NUTContext *nut){
AVFormatContext *s= nut->avf;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
StreamContext *stc;
int class, stream_id;
uint64_t tmp, end;
if (!st)
return AVERROR(ENOMEM);
- class = get_v(bc);
+ class = ff_get_v(bc);
tmp = get_fourcc(bc);
st->codec->codec_tag= tmp;
switch(class)
}
GET_V(stc->time_base_id , tmp < nut->time_base_count);
GET_V(stc->msb_pts_shift , tmp < 16);
- stc->max_pts_distance= get_v(bc);
+ stc->max_pts_distance= ff_get_v(bc);
GET_V(stc->decode_delay , tmp < 1000); //sanity limit, raise this if Moore's law is true
st->codec->has_b_frames= stc->decode_delay;
- get_v(bc); //stream flags
+ ff_get_v(bc); //stream flags
GET_V(st->codec->extradata_size, tmp < (1<<30));
if(st->codec->extradata_size){
if (st->codec->codec_type == CODEC_TYPE_VIDEO){
GET_V(st->codec->width , tmp > 0)
GET_V(st->codec->height, tmp > 0)
- st->codec->sample_aspect_ratio.num= get_v(bc);
- st->codec->sample_aspect_ratio.den= get_v(bc);
+ st->codec->sample_aspect_ratio.num= ff_get_v(bc);
+ st->codec->sample_aspect_ratio.den= ff_get_v(bc);
if((!st->codec->sample_aspect_ratio.num) != (!st->codec->sample_aspect_ratio.den)){
- av_log(s, AV_LOG_ERROR, "invalid aspect ratio\n");
+ av_log(s, AV_LOG_ERROR, "invalid aspect ratio %d/%d\n", st->codec->sample_aspect_ratio.num, st->codec->sample_aspect_ratio.den);
return -1;
}
- get_v(bc); /* csp type */
+ ff_get_v(bc); /* csp type */
}else if (st->codec->codec_type == CODEC_TYPE_AUDIO){
GET_V(st->codec->sample_rate , tmp > 0)
- tmp= get_v(bc); // samplerate_den
+ tmp= ff_get_v(bc); // samplerate_den
if(tmp > st->codec->sample_rate){
av_log(s, AV_LOG_ERROR, "Bleh, libnut muxed this ;)\n");
st->codec->sample_rate= tmp;
static int decode_info_header(NUTContext *nut){
AVFormatContext *s= nut->avf;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
uint64_t tmp;
unsigned int stream_id_plus1, chapter_start, chapter_len, count;
int chapter_id, i;
GET_V(stream_id_plus1, tmp <= s->nb_streams)
chapter_id = get_s(bc);
- chapter_start= get_v(bc);
- chapter_len = get_v(bc);
- count = get_v(bc);
+ chapter_start= ff_get_v(bc);
+ chapter_len = ff_get_v(bc);
+ count = ff_get_v(bc);
for(i=0; i<count; i++){
get_str(bc, name, sizeof(name));
value= get_s(bc);
value= get_s(bc);
}else if(value == -4){
type= "t";
- value= get_v(bc);
+ value= ff_get_v(bc);
}else if(value < -4){
type= "r";
get_s(bc);
static int decode_syncpoint(NUTContext *nut, int64_t *ts, int64_t *back_ptr){
AVFormatContext *s= nut->avf;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
int64_t end, tmp;
nut->last_syncpoint_pos= url_ftell(bc)-8;
end= get_packetheader(nut, bc, 1, SYNCPOINT_STARTCODE);
end += url_ftell(bc);
- tmp= get_v(bc);
- *back_ptr= nut->last_syncpoint_pos - 16*get_v(bc);
+ tmp= ff_get_v(bc);
+ *back_ptr= nut->last_syncpoint_pos - 16*ff_get_v(bc);
if(*back_ptr < 0)
return -1;
static int find_and_decode_index(NUTContext *nut){
AVFormatContext *s= nut->avf;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
uint64_t tmp, end;
int i, j, syncpoint_count;
int64_t filesize= url_fsize(bc);
end= get_packetheader(nut, bc, 1, INDEX_STARTCODE);
end += url_ftell(bc);
- get_v(bc); //max_pts
+ ff_get_v(bc); //max_pts
GET_V(syncpoint_count, tmp < INT_MAX/8 && tmp > 0)
syncpoints= av_malloc(sizeof(int64_t)*syncpoint_count);
has_keyframe= av_malloc(sizeof(int8_t)*(syncpoint_count+1));
for(i=0; i<s->nb_streams; i++){
int64_t last_pts= -1;
for(j=0; j<syncpoint_count;){
- uint64_t x= get_v(bc);
+ uint64_t x= ff_get_v(bc);
int type= x&1;
int n= j;
x>>=1;
assert(n<=syncpoint_count+1);
for(; j<n; j++){
if(has_keyframe[j]){
- uint64_t B, A= get_v(bc);
+ uint64_t B, A= ff_get_v(bc);
if(!A){
- A= get_v(bc);
- B= get_v(bc);
+ A= ff_get_v(bc);
+ B= ff_get_v(bc);
//eor_pts[j][i] = last_pts + A + B
}else
B= 0;
static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
NUTContext *nut = s->priv_data;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
int64_t pos;
int inited_stream_count;
static int decode_frame_header(NUTContext *nut, int64_t *pts, int *stream_id, int frame_code){
AVFormatContext *s= nut->avf;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
StreamContext *stc;
int size, flags, size_mul, pts_delta, i, reserved_count;
uint64_t tmp;
if(flags & FLAG_INVALID)
return -1;
if(flags & FLAG_CODED)
- flags ^= get_v(bc);
+ flags ^= ff_get_v(bc);
if(flags & FLAG_STREAM_ID){
GET_V(*stream_id, tmp < s->nb_streams)
}
stc= &nut->stream[*stream_id];
if(flags&FLAG_CODED_PTS){
- int coded_pts= get_v(bc);
+ int coded_pts= ff_get_v(bc);
//FIXME check last_pts validity?
if(coded_pts < (1<<stc->msb_pts_shift)){
*pts=ff_lsb2full(stc, coded_pts);
}else
*pts= stc->last_pts + pts_delta;
if(flags&FLAG_SIZE_MSB){
- size += size_mul*get_v(bc);
+ size += size_mul*ff_get_v(bc);
}
if(flags&FLAG_RESERVED)
- reserved_count= get_v(bc);
+ reserved_count= ff_get_v(bc);
for(i=0; i<reserved_count; i++)
- get_v(bc);
+ ff_get_v(bc);
if(flags&FLAG_CHECKSUM){
get_be32(bc); //FIXME check this
}else if(size > 2*nut->max_distance || FFABS(stc->last_pts - *pts) > stc->max_pts_distance){
static int decode_frame(NUTContext *nut, AVPacket *pkt, int frame_code){
AVFormatContext *s= nut->avf;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
int size, stream_id, discard;
int64_t pts, last_IP_pts;
StreamContext *stc;
static int nut_read_packet(AVFormatContext *s, AVPacket *pkt)
{
NUTContext *nut = s->priv_data;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
int i, frame_code=0, ret, skip;
int64_t ts, back_ptr;
static int64_t nut_read_timestamp(AVFormatContext *s, int stream_index, int64_t *pos_arg, int64_t pos_limit){
NUTContext *nut = s->priv_data;
- ByteIOContext *bc = &s->pb;
+ ByteIOContext *bc = s->pb;
int64_t pos, pts, back_ptr;
av_log(s, AV_LOG_DEBUG, "read_timestamp(X,%d,%"PRId64",%"PRId64")\n", stream_index, *pos_arg, pos_limit);
pos2= sp->back_ptr - 15;
}
av_log(NULL, AV_LOG_DEBUG, "SEEKTO: %"PRId64"\n", pos2);
- pos= find_startcode(&s->pb, SYNCPOINT_STARTCODE, pos2);
- url_fseek(&s->pb, pos, SEEK_SET);
+ pos= find_startcode(s->pb, SYNCPOINT_STARTCODE, pos2);
+ url_fseek(s->pb, pos, SEEK_SET);
av_log(NULL, AV_LOG_DEBUG, "SP: %"PRId64"\n", pos);
if(pos2 > pos || pos2 + 15 < pos){
av_log(NULL, AV_LOG_ERROR, "no syncpoint at backptr pos\n");
projects / ffmpeg / blobdiff