/* * mpeg.c: * * See the main source file 'xineliboutput.c' for copyright information and * how to reach the author. * * $Id: mpeg.c,v 1.1 2008-02-04 22:42:13 phintuka Exp $ * */ #include "mpeg.h" const char * const picture_type_str[] = { "(none)", "I-Frame", "B-Frame", "P-Frame" }; int mpeg2_get_picture_type(const uint8_t *buf, int len) { int i; for (i = 0; i < len-5; i++) { if (buf[i] == 0 && buf[i + 1] == 0 && buf[i + 2] == 1) { switch (buf[i + 3]) { case SC_PICTURE: return (buf[i + 5] >> 3) & 0x07; } } } return NO_PICTURE; } int mpeg2_get_video_size(const uint8_t *buf, int len, video_size_t *size) { int i; for (i = 0; i < len-6; i++) { if (buf[i] == 0 && buf[i + 1] == 0 && buf[i + 2] == 1) { if (buf[i + 3] == SC_SEQUENCE) { int d = (buf[i+4] << 16) | (buf[i+5] << 8) | buf[i+6]; size->width = (d >> 12); size->height = (d & 0xfff); return 1; } } } return 0; }