generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

move packetheader after startcodes

Browse Source 
Originally committed as revision 2215 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Beregszaszi
2003-09-07 00:37:46 +00:00
parent 99b17f25b1
commit ed0bb7bee6
1 changed files with 10 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
libavformat/nut.c
View File

@@ -217,10 +217,9 @@ static int nut_write_header(AVFormatContext *s)
stream_length = s->streams[i]->duration * (AV_TIME_BASE / 1000);
}
put_packetheader(nut, bc, 120);
/* 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 */
@@ -234,8 +233,8 @@ static int nut_write_header(AVFormatContext *s)
{
codec = &s->streams[i]->codec;
put_packetheader(nut, bc, 120);
put_be64(bc, STREAM_STARTCODE);
put_packetheader(nut, bc, 120);
put_v(bc, i /*s->streams[i]->index*/);
put_v(bc, (codec->codec_type == CODEC_TYPE_AUDIO) ? 32 : 0);
if (codec->codec_tag)
@@ -285,9 +284,9 @@ static int nut_write_header(AVFormatContext *s)
#if 0
/* info header */
put_be64(bc, INFO_STARTCODE);
put_packetheader(nut, bc, 16+strlen(s->author)+strlen(s->title)+
strlen(s->comment)+strlen(s->copyright));
put_be64(bc, INFO_STARTCODE);
if (s->author[0])
{
put_v(bc, 5); /* type */
@@ -339,8 +338,6 @@ static int nut_write_packet(AVFormatContext *s, int stream_index,
if (enc->codec_type == CODEC_TYPE_VIDEO)
key_frame = enc->coded_frame->key_frame;
put_packetheader(nut, bc, size+(key_frame?8:0)+20);
if (key_frame)
put_be64(bc, KEYFRAME_STARTCODE);
@@ -352,6 +349,8 @@ static int nut_write_packet(AVFormatContext *s, int stream_index,
flags<<=1; flags|=0; //reserved
put_byte(bc, flags);
put_packetheader(nut, bc, size+20);
put_v(bc, stream_index);
put_s(bc, force_pts); /* lsb_timestamp */
update_packetheader(nut, bc, size);
@@ -374,8 +373,8 @@ static int nut_write_trailer(AVFormatContext *s)
for (i = 0; s->nb_streams; i++)
{
put_packetheader(nut, bc, 64);
put_be64(bc, INDEX_STARTCODE);
put_packetheader(nut, bc, 64);
put_v(bc, s->streams[i]->id);
put_v(bc, ...);
put_be32(bc, 0); /* FIXME: checksum */
@@ -412,10 +411,10 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
int cur_stream, nb_streams;
/* main header */
get_packetheader(nut, bc);
tmp = get_be64(bc);
if (tmp != MAIN_STARTCODE)
fprintf(stderr, "damaged? startcode!=1 (%Ld)\n", tmp);
get_packetheader(nut, bc);
tmp = get_v(bc);
if (tmp != 0)
@@ -436,10 +435,10 @@ static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
int class;
AVStream *st;
get_packetheader(nut, bc);
tmp = get_be64(bc);
if (tmp != STREAM_STARTCODE)
fprintf(stderr, "damaged? startcode!=1 (%Ld)\n", tmp);
get_packetheader(nut, bc);
st = av_new_stream(s, get_v(bc));
if (!st)
return AVERROR_NOMEM;
@@ -508,7 +507,6 @@ static int nut_read_packet(AVFormatContext *s, AVPacket *pkt)
int key_frame = 0;
uint64_t tmp;
get_packetheader(nut, bc);
if (url_feof(bc))
return -1;
@@ -527,6 +525,7 @@ static int nut_read_packet(AVFormatContext *s, AVPacket *pkt)
else
fprintf(stderr, "error in zero bit / startcode %LX\n", tmp);
}
get_packetheader(nut, bc);
#if 0
if (((tmp & 0x60)>>5) > 3) /* priority <= 3 */
fprintf(stderr, "sanity check failed!\n");
@@ -573,7 +572,7 @@ static AVOutputFormat nut_oformat = {
#elif defined(CONFIG_MP3LAME)
CODEC_ID_MP3LAME,
#else
CODEC_ID_AC3,
CODEC_ID_MP2, /* AC3 needs liba52 decoder */
#endif
CODEC_ID_MPEG4,
nut_write_header,