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| author | Michael Niedermayer <michaelni@gmx.at> | 2005-09-11 08:28:03 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2005-09-11 08:28:03 +0000 |
| commit | 177e5460b9fe9043e5f70dde7718298a43c55d48 (patch) | |
| tree | 2a30e50fda5e715309fb9e1829dfb1fb47f940f3 /libavformat/nut.c | |
| parent | e7902f2095064bf2eb9537e9f3a5a6a6a7eaaab4 (diff) | |
| download | ffmpeg-177e5460b9fe9043e5f70dde7718298a43c55d48.tar.gz | |
forward_ptr doesnt contain its own length anymore
Originally committed as revision 4578 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/nut.c')
| -rw-r--r-- | libavformat/nut.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/libavformat/nut.c b/libavformat/nut.c index cd46d55d75..aee1606edb 100644 --- a/libavformat/nut.c +++ b/libavformat/nut.c @@ -462,8 +462,7 @@ static inline void put_vb_trace(ByteIOContext *bc, uint64_t v, char *file, char static int put_packetheader(NUTContext *nut, ByteIOContext *bc, int max_size, int calculate_checksum) { put_flush_packet(bc); - nut->packet_start[2]+= nut->written_packet_size; - assert(url_ftell(bc) - 8 == nut->packet_start[2]); + nut->packet_start[2]= url_ftell(bc) - 8; nut->written_packet_size = max_size; if(calculate_checksum) @@ -475,10 +474,14 @@ static int put_packetheader(NUTContext *nut, ByteIOContext *bc, int max_size, in return 0; } +/** + * + * must not be called more then once per packet + */ static int update_packetheader(NUTContext *nut, ByteIOContext *bc, int additional_size, int calculate_checksum){ int64_t start= nut->packet_start[2]; int64_t cur= url_ftell(bc); - int size= cur - start + additional_size; + int size= cur - start - get_length(nut->written_packet_size)/7 - 8; if(calculate_checksum) size += 4; @@ -1276,7 +1279,7 @@ static int nut_read_packet(AVFormatContext *s, AVPacket *pkt) case INDEX_STARTCODE: get_packetheader(nut, bc, 0); assert(nut->packet_start[2] == pos); - url_fseek(bc, nut->written_packet_size + nut->packet_start[2], SEEK_SET); + url_fseek(bc, nut->written_packet_size, SEEK_CUR); break; case INFO_STARTCODE: if(decode_info_header(nut)<0) @@ -1357,7 +1360,7 @@ av_log(s, AV_LOG_DEBUG, "read_timestamp(X,%d,%lld,%lld)\n", stream_index, *pos_a case INFO_STARTCODE: get_packetheader(nut, bc, 0); assert(nut->packet_start[2]==pos); - url_fseek(bc, nut->written_packet_size + pos, SEEK_SET); + url_fseek(bc, nut->written_packet_size, SEEK_CUR); break; case KEYFRAME_STARTCODE: frame_type=2; |