* RAW MPEG-4 video demuxer
* Copyright (c) 2006 Thijs Vermeir <thijs.vermeir@barco.com>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
-#include "raw.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;
+ 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];
+ 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 (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 AVPROBE_SCORE_MAX/2;
+ if (VOP >= VISO && VOP >= VOL && VO >= VOL && VOL > 0 && res == 0)
+ return AVPROBE_SCORE_EXTENSION;
return 0;
}
-AVInputFormat m4v_demuxer = {
- "m4v",
- NULL_IF_CONFIG_SMALL("raw MPEG-4 video format"),
- 0,
- mpeg4video_probe, /** probing for MPEG-4 data */
- ff_raw_video_read_header,
- ff_raw_read_partial_packet,
- .flags= AVFMT_GENERIC_INDEX,
- .extensions = "m4v",
- .value = CODEC_ID_MPEG4,
-};
+FF_DEF_RAWVIDEO_DEMUXER(m4v, "raw MPEG-4 video", mpeg4video_probe, "m4v",
+ AV_CODEC_ID_MPEG4)