diff options
Diffstat (limited to 'tools/pes.c')
-rw-r--r-- | tools/pes.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/tools/pes.c b/tools/pes.c deleted file mode 100644 index 14773f2e..00000000 --- a/tools/pes.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * pes.h: PES header definitions - * - * See the main source file 'xineliboutput.c' for copyright information and - * how to reach the author. - * - * $Id: pes.c,v 1.10 2009-07-01 09:31:17 phintuka Exp $ - * - */ - -#include <inttypes.h> -#include <string.h> - -#include "../logdefs.h" - -#include "mpeg.h" -#include "h264.h" - -#include "pes.h" - - -int64_t pes_get_pts(const uint8_t *buf, int len) -{ - /* assume mpeg2 pes header ... */ - if (IS_VIDEO_PACKET(buf) || IS_AUDIO_PACKET(buf)) { - - if ((buf[6] & 0xC0) != 0x80) - return NO_PTS; - if ((buf[6] & 0x30) != 0) - return NO_PTS; - - if ((len > 13) && (buf[7] & 0x80)) { /* pts avail */ - int64_t pts; - pts = ((int64_t)(buf[ 9] & 0x0E)) << 29 ; - pts |= ((int64_t) buf[10]) << 22 ; - pts |= ((int64_t)(buf[11] & 0xFE)) << 14 ; - pts |= ((int64_t) buf[12]) << 7 ; - pts |= ((int64_t)(buf[13] & 0xFE)) >> 1 ; - return pts; - } - } - return NO_PTS; -} - -int64_t pes_get_dts(const uint8_t *buf, int len) -{ - if (IS_VIDEO_PACKET(buf) || IS_AUDIO_PACKET(buf)) { - - if ((buf[6] & 0xC0) != 0x80) - return NO_PTS; - if ((buf[6] & 0x30) != 0) - return NO_PTS; - - if (len > 18 && (buf[7] & 0x40)) { /* dts avail */ - int64_t dts; - dts = ((int64_t)( buf[14] & 0x0E)) << 29 ; - dts |= (int64_t)( buf[15] << 22 ); - dts |= (int64_t)((buf[16] & 0xFE) << 14 ); - dts |= (int64_t)( buf[17] << 7 ); - dts |= (int64_t)((buf[18] & 0xFE) >> 1 ); - return dts; - } - } - return NO_PTS; -} - -void pes_change_pts(uint8_t *buf, int len, int64_t new_pts) -{ - /* assume mpeg2 pes header ... Assume header already HAS pts */ - if (IS_VIDEO_PACKET(buf) || IS_AUDIO_PACKET(buf)) { - - if ((buf[6] & 0xC0) != 0x80) - return; - if ((buf[6] & 0x30) != 0) - return; - - if ((len > 13) && (buf[7] & 0x80)) { /* pts avail */ - buf[ 9] = ((new_pts >> 29) & 0x0E) | (buf[ 9] & 0xf1); - buf[10] = ((new_pts >> 22) & 0xFF); - buf[11] = ((new_pts >> 14) & 0xFE) | (buf[11] & 0x01); - buf[12] = ((new_pts >> 7 ) & 0xFF); - buf[13] = ((new_pts << 1 ) & 0xFE) | (buf[13] & 0x01); - } - } -} - -int pes_strip_pts_dts(uint8_t *buf, int size) -{ - if(size > 13 && buf[7] & 0x80) { /* pts avail */ - int n = 5; - int pes_len = (buf[4] << 8) | buf[5]; - if ((buf[6] & 0xC0) != 0x80) - return size; - if ((buf[6] & 0x30) != 0) /* scrambling control */ - return size; - /* dts too ? */ - if(size > 18 && buf[7] & 0x40) - n += 5; - pes_len -= n; /* update packet len */ - buf[4] = pes_len >> 8; /* packet len (hi) */ - buf[5] = pes_len & 0xff; /* packet len (lo) */ - buf[7] &= 0x3f; /* clear pts and dts flags */ - buf[8] -= n; /* update header len */ - memmove(buf+4+n, buf+9+n, size-9-n); - return size - n; - } - return size; -} - -int pes_is_frame_h264(const uint8_t *buf, int len) -{ - if (len < 9 || len < 9 + buf[8]) - return 0; - if ( (buf[6] & 0xC0) != 0x80) /* MPEG 2 PES */ - return 0; - - buf += 9 + buf[8]; - - if (IS_NAL_AUD(buf)) - return 1; - return 0; -} - -uint8_t pes_get_picture_type(const uint8_t *buf, int len) -{ - int i = PES_HEADER_LEN(buf); - - buf += i; - len -= i; - - if (buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01) { - if (buf[3] == NAL_AUD) - return h264_get_picture_type(buf, len); - return mpeg2_get_picture_type(buf, len); - } - - return NO_PICTURE; -} - -int pes_get_video_size(const uint8_t *buf, int len, video_size_t *size, int h264) -{ - int i = PES_HEADER_LEN(buf); - - buf += i; - len -= i; - - if (h264 || IS_NAL_AUD(buf)) - return h264_get_video_size(buf, len, size); - - return mpeg2_get_video_size(buf, len, size); -} - |