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ffmpeg
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lavf: move ff_get_v from avio.h to avio_internal.h 

And rename it to ffio_read_varlen.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
This commit is contained in:
Anton Khirnov 2011-03-14 20:38:57 +01:00 committed by Ronald S. Bultje
parent 073f8b10d8
commit 4839c192de
5 changed files with 51 additions and 49 deletions
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2
libavformat/avio.h
View File

@ -568,8 +568,6 @@ unsigned int avio_rb24(AVIOContext *s);
unsigned int avio_rb32(AVIOContext *s);
uint64_t avio_rb64(AVIOContext *s);
uint64_t ff_get_v(AVIOContext *bc);
static inline int url_is_streamed(AVIOContext *s)
{
return s->is_streamed;

2
libavformat/avio_internal.h
View File

@ -61,4 +61,6 @@ static av_always_inline void ffio_wfourcc(AVIOContext *pb, const uint8_t *s)
*/
int ffio_rewind_with_probe_data(AVIOContext *s, unsigned char *buf, int buf_size);
uint64_t ffio_read_varlen(AVIOContext *bc);
#endif // AVFORMAT_AVIO_INTERNAL_H

2
libavformat/aviobuf.c
View File

@ -753,7 +753,7 @@ uint64_t avio_rb64(AVIOContext *s)
return val;
}
uint64_t ff_get_v(AVIOContext *bc){
uint64_t ffio_read_varlen(AVIOContext *bc){
uint64_t val = 0;
int tmp;

9
libavformat/mpc8.c
View File

@ -22,6 +22,7 @@
#include "libavcodec/get_bits.h"
#include "libavcodec/unary.h"
#include "avformat.h"
#include "avio_internal.h"
/// Two-byte MPC tag
#define MKMPCTAG(a, b) (a | (b << 8))
@ -122,7 +123,7 @@ static void mpc8_get_chunk_header(AVIOContext *pb, int *tag, int64_t *size)
int64_t pos;
pos = avio_tell(pb);
*tag = avio_rl16(pb);
*size = ff_get_v(pb);
*size = ffio_read_varlen(pb);
*size -= avio_tell(pb) - pos;
}
@ -177,7 +178,7 @@ static void mpc8_handle_chunk(AVFormatContext *s, int tag, int64_t chunk_pos, in
switch(tag){
case TAG_SEEKTBLOFF:
pos = avio_tell(pb) + size;
off = ff_get_v(pb);
off = ffio_read_varlen(pb);
mpc8_parse_seektable(s, chunk_pos + off);
avio_seek(pb, pos, SEEK_SET);
break;
@ -218,8 +219,8 @@ static int mpc8_read_header(AVFormatContext *s, AVFormatParameters *ap)
av_log(s, AV_LOG_ERROR, "Unknown stream version %d\n", c->ver);
return -1;
}
c->samples = ff_get_v(pb);
ff_get_v(pb); //silence samples at the beginning
c->samples = ffio_read_varlen(pb);
ffio_read_varlen(pb); //silence samples at the beginning
st = av_new_stream(s, 0);
if (!st)

85
libavformat/nutdec.c
View File

@ -24,6 +24,7 @@
#include "libavutil/avstring.h"
#include "libavutil/bswap.h"
#include "libavutil/tree.h"
#include "avio_internal.h"
#include "nut.h"
#undef NDEBUG
@ -36,7 +37,7 @@
#endif
static int get_str(AVIOContext *bc, char *string, unsigned int maxlen){
unsigned int len= ff_get_v(bc);
unsigned int len= ffio_read_varlen(bc);
if(len && maxlen)
avio_read(bc, string, FFMIN(len, maxlen));
@ -55,14 +56,14 @@ static int get_str(AVIOContext *bc, char *string, unsigned int maxlen){
}
static int64_t get_s(AVIOContext *bc){
int64_t v = ff_get_v(bc) + 1;
int64_t v = ffio_read_varlen(bc) + 1;
if (v&1) return -(v>>1);
else return (v>>1);
}
static uint64_t get_fourcc(AVIOContext *bc){
unsigned int len= ff_get_v(bc);
unsigned int len= ffio_read_varlen(bc);
if (len==2) return avio_rl16(bc);
else if(len==4) return avio_rl32(bc);
@ -71,7 +72,7 @@ static uint64_t get_fourcc(AVIOContext *bc){
#ifdef TRACE
static inline uint64_t get_v_trace(AVIOContext *bc, char *file, char *func, int line){
uint64_t v= ff_get_v(bc);
uint64_t v= ffio_read_varlen(bc);
av_log(NULL, AV_LOG_DEBUG, "get_v %5"PRId64" / %"PRIX64" in %s %s:%d\n", v, v, file, func, line);
return v;
@ -90,7 +91,7 @@ static inline uint64_t get_vb_trace(AVIOContext *bc, char *file, char *func, int
av_log(NULL, AV_LOG_DEBUG, "get_vb %5"PRId64" / %"PRIX64" in %s %s:%d\n", v, v, file, func, line);
return v;
}
#define ff_get_v(bc) get_v_trace(bc, __FILE__, __PRETTY_FUNCTION__, __LINE__)
#define ffio_read_varlen(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
@ -104,7 +105,7 @@ static int get_packetheader(NUTContext *nut, AVIOContext *bc, int calculate_chec
startcode= ff_crc04C11DB7_update(0, (uint8_t*)&startcode, 8);
init_checksum(bc, ff_crc04C11DB7_update, startcode);
size= ff_get_v(bc);
size= ffio_read_varlen(bc);
if(size > 4096)
avio_rb32(bc);
if(get_checksum(bc) && size > 4096)
@ -168,7 +169,7 @@ static int nut_probe(AVProbeData *p){
}
#define GET_V(dst, check) \
tmp= ff_get_v(bc);\
tmp= ffio_read_varlen(bc);\
if(!(check)){\
av_log(s, AV_LOG_ERROR, "Error " #dst " is (%"PRId64")\n", tmp);\
return -1;\
@ -201,7 +202,7 @@ static int decode_main_header(NUTContext *nut){
GET_V(tmp , tmp >=2 && tmp <= 3)
GET_V(stream_count , tmp > 0 && tmp <= NUT_MAX_STREAMS)
nut->max_distance = ff_get_v(bc);
nut->max_distance = ffio_read_varlen(bc);
if(nut->max_distance > 65536){
av_log(s, AV_LOG_DEBUG, "max_distance %d\n", nut->max_distance);
nut->max_distance= 65536;
@ -224,22 +225,22 @@ static int decode_main_header(NUTContext *nut){
tmp_match= 1-(1LL<<62);
tmp_head_idx= 0;
for(i=0; i<256;){
int tmp_flags = ff_get_v(bc);
int tmp_fields= ff_get_v(bc);
int tmp_flags = ffio_read_varlen(bc);
int tmp_fields= ffio_read_varlen(bc);
if(tmp_fields>0) tmp_pts = get_s(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);
if(tmp_fields>1) tmp_mul = ffio_read_varlen(bc);
if(tmp_fields>2) tmp_stream= ffio_read_varlen(bc);
if(tmp_fields>3) tmp_size = ffio_read_varlen(bc);
else tmp_size = 0;
if(tmp_fields>4) tmp_res = ff_get_v(bc);
if(tmp_fields>4) tmp_res = ffio_read_varlen(bc);
else tmp_res = 0;
if(tmp_fields>5) count = ff_get_v(bc);
if(tmp_fields>5) count = ffio_read_varlen(bc);
else count = tmp_mul - tmp_size;
if(tmp_fields>6) tmp_match = get_s(bc);
if(tmp_fields>7) tmp_head_idx= ff_get_v(bc);
if(tmp_fields>7) tmp_head_idx= ffio_read_varlen(bc);
while(tmp_fields-- > 8)
ff_get_v(bc);
ffio_read_varlen(bc);
if(count == 0 || i+count > 256){
av_log(s, AV_LOG_ERROR, "illegal count %d at %d\n", count, i);
@ -315,7 +316,7 @@ static int decode_stream_header(NUTContext *nut){
if (!st)
return AVERROR(ENOMEM);
class = ff_get_v(bc);
class = ffio_read_varlen(bc);
tmp = get_fourcc(bc);
st->codec->codec_tag= tmp;
switch(class)
@ -347,10 +348,10 @@ static int decode_stream_header(NUTContext *nut){
GET_V(stc->time_base_id , tmp < nut->time_base_count);
GET_V(stc->msb_pts_shift , tmp < 16);
stc->max_pts_distance= ff_get_v(bc);
stc->max_pts_distance= ffio_read_varlen(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;
ff_get_v(bc); //stream flags
ffio_read_varlen(bc); //stream flags
GET_V(st->codec->extradata_size, tmp < (1<<30));
if(st->codec->extradata_size){
@ -361,16 +362,16 @@ static int decode_stream_header(NUTContext *nut){
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
GET_V(st->codec->width , tmp > 0)
GET_V(st->codec->height, tmp > 0)
st->sample_aspect_ratio.num= ff_get_v(bc);
st->sample_aspect_ratio.den= ff_get_v(bc);
st->sample_aspect_ratio.num= ffio_read_varlen(bc);
st->sample_aspect_ratio.den= ffio_read_varlen(bc);
if((!st->sample_aspect_ratio.num) != (!st->sample_aspect_ratio.den)){
av_log(s, AV_LOG_ERROR, "invalid aspect ratio %d/%d\n", st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
return -1;
}
ff_get_v(bc); /* csp type */
ffio_read_varlen(bc); /* csp type */
}else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
GET_V(st->codec->sample_rate , tmp > 0)
ff_get_v(bc); // samplerate_den
ffio_read_varlen(bc); // samplerate_den
GET_V(st->codec->channels, tmp > 0)
}
if(skip_reserved(bc, end) || get_checksum(bc)){
@ -413,9 +414,9 @@ static int decode_info_header(NUTContext *nut){
GET_V(stream_id_plus1, tmp <= s->nb_streams)
chapter_id = get_s(bc);
chapter_start= ff_get_v(bc);
chapter_len = ff_get_v(bc);
count = ff_get_v(bc);
chapter_start= ffio_read_varlen(bc);
chapter_len = ffio_read_varlen(bc);
count = ffio_read_varlen(bc);
if(chapter_id && !stream_id_plus1){
int64_t start= chapter_start / nut->time_base_count;
@ -444,7 +445,7 @@ static int decode_info_header(NUTContext *nut){
value= get_s(bc);
}else if(value == -4){
type= "t";
value= ff_get_v(bc);
value= ffio_read_varlen(bc);
}else if(value < -4){
type= "r";
get_s(bc);
@ -485,8 +486,8 @@ static int decode_syncpoint(NUTContext *nut, int64_t *ts, int64_t *back_ptr){
end= get_packetheader(nut, bc, 1, SYNCPOINT_STARTCODE);
end += avio_tell(bc);
tmp= ff_get_v(bc);
*back_ptr= nut->last_syncpoint_pos - 16*ff_get_v(bc);
tmp= ffio_read_varlen(bc);
*back_ptr= nut->last_syncpoint_pos - 16*ffio_read_varlen(bc);
if(*back_ptr < 0)
return -1;
@ -523,12 +524,12 @@ static int find_and_decode_index(NUTContext *nut){
end= get_packetheader(nut, bc, 1, INDEX_STARTCODE);
end += avio_tell(bc);
ff_get_v(bc); //max_pts
ffio_read_varlen(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<syncpoint_count; i++){
syncpoints[i] = ff_get_v(bc);
syncpoints[i] = ffio_read_varlen(bc);
if(syncpoints[i] <= 0)
goto fail;
if(i)
@ -538,7 +539,7 @@ static int find_and_decode_index(NUTContext *nut){
for(i=0; i<s->nb_streams; i++){
int64_t last_pts= -1;
for(j=0; j<syncpoint_count;){
uint64_t x= ff_get_v(bc);
uint64_t x= ffio_read_varlen(bc);
int type= x&1;
int n= j;
x>>=1;
@ -569,10 +570,10 @@ static int find_and_decode_index(NUTContext *nut){
assert(n<=syncpoint_count+1);
for(; j<n && j<syncpoint_count; j++){
if(has_keyframe[j]){
uint64_t B, A= ff_get_v(bc);
uint64_t B, A= ffio_read_varlen(bc);
if(!A){
A= ff_get_v(bc);
B= ff_get_v(bc);
A= ffio_read_varlen(bc);
B= ffio_read_varlen(bc);
//eor_pts[j][i] = last_pts + A + B
}else
B= 0;
@ -687,13 +688,13 @@ static int decode_frame_header(NUTContext *nut, int64_t *pts, int *stream_id, ui
if(flags & FLAG_INVALID)
return AVERROR_INVALIDDATA;
if(flags & FLAG_CODED)
flags ^= ff_get_v(bc);
flags ^= ffio_read_varlen(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= ff_get_v(bc);
int coded_pts= ffio_read_varlen(bc);
//FIXME check last_pts validity?
if(coded_pts < (1<<stc->msb_pts_shift)){
*pts=ff_lsb2full(stc, coded_pts);
@ -702,16 +703,16 @@ static int decode_frame_header(NUTContext *nut, int64_t *pts, int *stream_id, ui
}else
*pts= stc->last_pts + pts_delta;
if(flags&FLAG_SIZE_MSB){
size += size_mul*ff_get_v(bc);
size += size_mul*ffio_read_varlen(bc);
}
if(flags&FLAG_MATCH_TIME)
get_s(bc);
if(flags&FLAG_HEADER_IDX)
*header_idx= ff_get_v(bc);
*header_idx= ffio_read_varlen(bc);
if(flags&FLAG_RESERVED)
reserved_count= ff_get_v(bc);
reserved_count= ffio_read_varlen(bc);
for(i=0; i<reserved_count; i++)
ff_get_v(bc);
ffio_read_varlen(bc);
if(*header_idx >= (unsigned)nut->header_count){
av_log(s, AV_LOG_ERROR, "header_idx invalid\n");