Lines Matching defs:header
2 * MPEG Audio header decoder
24 * MPEG Audio header decoder.
51 /* header decoding. MUST check the header before because no
54 int avpriv_mpegaudio_decode_header(MPADecodeHeader *s, uint32_t header);
57 header, otherwise the coded frame size in bytes */
61 /* fast header check for resync */
62 static inline int ff_mpa_check_header(uint32_t header){
63 /* header */
64 if ((header & 0xffe00000) != 0xffe00000)
67 if ((header & (3<<19)) == 1<<19)
70 if ((header & (3<<17)) == 0)
73 if ((header & (0xf<<12)) == 0xf<<12)
76 if ((header & (3<<10)) == 3<<10)