can easily be reused by other demuxers for formats that encapsulate MPEG-PES.
Originally committed as revision 11451 to svn://svn.ffmpeg.org/ffmpeg/trunk
static int64_t get_pts(ByteIOContext *pb, int c)
{
- int64_t pts;
- int val;
-
- if (c < 0)
- c = get_byte(pb);
- pts = (int64_t)(c & 0x0e) << 29;
- val = get_be16(pb);
- pts |= (int64_t)(val >> 1) << 15;
- val = get_be16(pb);
- pts |= (int64_t)(val >> 1);
- return pts;
+ uint8_t buf[5];
+
+ buf[0] = c<0 ? get_byte(pb) : c;
+ get_buffer(pb, buf+1, 4);
+
+ return ff_parse_pes_pts(buf);
}
static int find_next_start_code(ByteIOContext *pb, int *size_ptr,
static const int lpcm_freq_tab[4] = { 48000, 96000, 44100, 32000 };
+/**
+ * Parse MPEG-PES five-byte timestamp
+ */
+static inline int64_t ff_parse_pes_pts(uint8_t *buf) {
+ return (int64_t)(*buf & 0x0e) << 29 |
+ (AV_RB16(buf+1) >> 1) << 15 |
+ AV_RB16(buf+3) >> 1;
+}
+
#endif /* FFMPEG_MPEG_H */