diff options
Diffstat (limited to 'ffmpeg/libavformat/m4vdec.c')
| -rw-r--r-- | ffmpeg/libavformat/m4vdec.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/ffmpeg/libavformat/m4vdec.c b/ffmpeg/libavformat/m4vdec.c deleted file mode 100644 index c2fd4d7..0000000 --- a/ffmpeg/libavformat/m4vdec.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * RAW MPEG-4 video demuxer - * Copyright (c) 2006 Thijs Vermeir <thijs.vermeir@barco.com> - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "avformat.h" -#include "rawdec.h" - -#define VISUAL_OBJECT_START_CODE 0x000001b5 -#define VOP_START_CODE 0x000001b6 - -static int mpeg4video_probe(AVProbeData *probe_packet) -{ - uint32_t temp_buffer= -1; - int VO=0, VOL=0, VOP = 0, VISO = 0, res=0; - int i; - - for(i=0; i<probe_packet->buf_size; i++){ - temp_buffer = (temp_buffer<<8) + probe_packet->buf[i]; - if ((temp_buffer & 0xffffff00) != 0x100) - continue; - - if (temp_buffer == VOP_START_CODE) VOP++; - else if (temp_buffer == VISUAL_OBJECT_START_CODE) VISO++; - else if (temp_buffer < 0x120) VO++; - else if (temp_buffer < 0x130) VOL++; - else if ( !(0x1AF < temp_buffer && temp_buffer < 0x1B7) - && !(0x1B9 < temp_buffer && temp_buffer < 0x1C4)) res++; - } - - if (VOP >= VISO && VOP >= VOL && VO >= VOL && VOL > 0 && res==0) - return VOP+VO > 3 ? AVPROBE_SCORE_EXTENSION : AVPROBE_SCORE_EXTENSION/2; - return 0; -} - -FF_DEF_RAWVIDEO_DEMUXER(m4v, "raw MPEG-4 video", mpeg4video_probe, "m4v", AV_CODEC_ID_MPEG4) |