virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-02-04 06:08:26 +02:00
Code Issues Releases Activity

fix fabrice's broken get_bi and some minor changes in draft

Browse Source 
Originally committed as revision 2335 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Beregszaszi 2003-10-02 14:59:54 +00:00
parent 7fe4c82382
commit 5aa0a64494
1 changed files with 8 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
libavformat/nut.c
View File

@ -63,7 +63,6 @@ static uint64_t get_v(ByteIOContext *bc)
{
uint64_t val = 0;
// for (; bytes_left(s)*8 > 0; )
for(; bytes_left(bc) > 0; )
{
int tmp = get_byte(bc);
@ -93,27 +92,23 @@ static int get_b(ByteIOContext *bc, char *data, int maxlen)
len = get_v(bc);
for (i = 0; i < len && i < maxlen; i++)
data[i] = get_byte(bc);
if (i < len)
{
len = i;
for (i = 0; i < len; i++)
get_byte(bc);
}
/* skip remaining bytes */
for (; i < len; i++)
get_byte(bc);
return 0;
}
static int get_bi(ByteIOContext *bc)
{
int i, len, val;
int i, len, val = 0;
len = get_v(bc);
if(len > 4) return -1;
val = 0;
for (i = 0; i < len; i++) {
for (i = 0; i < len && i <= 4; i++)
val |= get_byte(bc) << (i * 8);
}
/* skip remaining bytes */
for (; i < len; i++)
get_byte(bc);
return val;
}
@ -232,21 +227,12 @@ static int nut_write_header(AVFormatContext *s)
ByteIOContext *bc = &s->pb;
AVCodecContext *codec;
int i;
int stream_length = 0;
for (i = 0; i < s->nb_streams; i++)
{
if (stream_length < (s->streams[i]->duration * (AV_TIME_BASE / 1000)))
stream_length = s->streams[i]->duration * (AV_TIME_BASE / 1000);
}
/* main header */
put_be64(bc, MAIN_STARTCODE);
put_packetheader(nut, bc, 120);
put_v(bc, 0); /* version */
put_v(bc, s->nb_streams);
put_v(bc, 0); /* file size */
put_v(bc, stream_length); /* len in msec */
put_be32(bc, 0); /* FIXME: checksum */
update_packetheader(nut, bc, 0);
@ -439,10 +425,6 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
fprintf(stderr, "bad version (%Ld)\n", tmp);
nb_streams = get_v(bc);
s->file_size = get_v(bc);
s->duration = get_v(bc) / (AV_TIME_BASE / 1000);
get_be32(bc); /* checkusm */
s->bit_rate = 0;