diff options
Diffstat (limited to 'libavformat/mpeg.c')
| -rw-r--r-- | libavformat/mpeg.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c index f0aed06864..ebaf3dbdf2 100644 --- a/libavformat/mpeg.c +++ b/libavformat/mpeg.c @@ -163,41 +163,6 @@ static int find_next_start_code(AVIOContext *pb, int *size_ptr, return val; } -#if 0 /* unused, remove? */ -/* XXX: optimize */ -static int find_prev_start_code(AVIOContext *pb, int *size_ptr) -{ - int64_t pos, pos_start; - int max_size, start_code; - - max_size = *size_ptr; - pos_start = avio_tell(pb); - - /* in order to go faster, we fill the buffer */ - pos = pos_start - 16386; - if (pos < 0) - pos = 0; - avio_seek(pb, pos, SEEK_SET); - avio_r8(pb); - - pos = pos_start; - for(;;) { - pos--; - if (pos < 0 || (pos_start - pos) >= max_size) { - start_code = -1; - goto the_end; - } - avio_seek(pb, pos, SEEK_SET); - start_code = avio_rb32(pb); - if ((start_code & 0xffffff00) == 0x100) - break; - } - the_end: - *size_ptr = pos_start - pos; - return start_code; -} -#endif - /** * Extract stream types from a program stream map * According to ISO/IEC 13818-1 ('MPEG-2 Systems') table 2-35 @@ -327,12 +292,6 @@ static int mpegps_read_pes_header(AVFormatContext *s, } } else if ((c & 0xc0) == 0x80) { /* mpeg 2 PES */ -#if 0 /* some streams have this field set for no apparent reason */ - if ((c & 0x30) != 0) { - /* Encrypted multiplex not handled */ - goto redo; - } -#endif flags = avio_r8(s->pb); header_len = avio_r8(s->pb); len -= 2; |