move mpegvideo demuxer to its own file

Originally committed as revision 24974 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/Makefile

@@ -135,7 +135,7 @@ OBJS-$(CONFIG_MPEG2VIDEO_MUXER)          += raw.o
 OBJS-$(CONFIG_MPEGPS_DEMUXER)            += mpeg.o
 OBJS-$(CONFIG_MPEGTS_DEMUXER)            += mpegts.o
 OBJS-$(CONFIG_MPEGTS_MUXER)              += mpegtsenc.o adtsenc.o
-OBJS-$(CONFIG_MPEGVIDEO_DEMUXER)         += raw.o
+OBJS-$(CONFIG_MPEGVIDEO_DEMUXER)         += mpegvideodec.o raw.o
 OBJS-$(CONFIG_MPJPEG_MUXER)              += mpjpeg.o
 OBJS-$(CONFIG_MSNWC_TCP_DEMUXER)         += msnwc_tcp.o
 OBJS-$(CONFIG_MTV_DEMUXER)               += mtv.o

libavformat/mpegvideodec.c

@@ -0,0 +1,67 @@
+/*
+ * RAW MPEG video demuxer
+ * Copyright (c) 2002-2003 Fabrice Bellard
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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 "raw.h"
+
+#define SEQ_START_CODE          0x000001b3
+#define GOP_START_CODE          0x000001b8
+#define PICTURE_START_CODE      0x00000100
+#define SLICE_START_CODE        0x00000101
+#define PACK_START_CODE         0x000001ba
+#define VIDEO_ID                0x000001e0
+#define AUDIO_ID                0x000001c0
+
+static int mpegvideo_probe(AVProbeData *p)
+{
+    uint32_t code= -1;
+    int pic=0, seq=0, slice=0, pspack=0, pes=0;
+    int i;
+
+    for(i=0; i<p->buf_size; i++){
+        code = (code<<8) + p->buf[i];
+        if ((code & 0xffffff00) == 0x100) {
+            switch(code){
+            case     SEQ_START_CODE:   seq++; break;
+            case PICTURE_START_CODE:   pic++; break;
+            case   SLICE_START_CODE: slice++; break;
+            case    PACK_START_CODE: pspack++; break;
+            }
+            if     ((code & 0x1f0) == VIDEO_ID)   pes++;
+            else if((code & 0x1e0) == AUDIO_ID)   pes++;
+        }
+    }
+    if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !pes)
+        return pic>1 ? AVPROBE_SCORE_MAX/2+1 : AVPROBE_SCORE_MAX/4; // +1 for .mpg
+    return 0;
+}
+
+AVInputFormat mpegvideo_demuxer = {
+    "mpegvideo",
+    NULL_IF_CONFIG_SMALL("raw MPEG video"),
+    0,
+    mpegvideo_probe,
+    ff_raw_video_read_header,
+    ff_raw_read_partial_packet,
+    .flags= AVFMT_GENERIC_INDEX,
+    .value = CODEC_ID_MPEG1VIDEO,
+};

libavformat/raw.c

@@ -241,40 +241,6 @@ int ff_raw_video_read_header(AVFormatContext *s,
 }
 #endif
 
-#if CONFIG_MPEGVIDEO_DEMUXER
-#define SEQ_START_CODE          0x000001b3
-#define GOP_START_CODE          0x000001b8
-#define PICTURE_START_CODE      0x00000100
-#define SLICE_START_CODE        0x00000101
-#define PACK_START_CODE         0x000001ba
-#define VIDEO_ID                0x000001e0
-#define AUDIO_ID                0x000001c0
-
-static int mpegvideo_probe(AVProbeData *p)
-{
-    uint32_t code= -1;
-    int pic=0, seq=0, slice=0, pspack=0, pes=0;
-    int i;
-
-    for(i=0; i<p->buf_size; i++){
-        code = (code<<8) + p->buf[i];
-        if ((code & 0xffffff00) == 0x100) {
-            switch(code){
-            case     SEQ_START_CODE:   seq++; break;
-            case PICTURE_START_CODE:   pic++; break;
-            case   SLICE_START_CODE: slice++; break;
-            case    PACK_START_CODE: pspack++; break;
-            }
-            if     ((code & 0x1f0) == VIDEO_ID)   pes++;
-            else if((code & 0x1e0) == AUDIO_ID)   pes++;
-        }
-    }
-    if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !pes)
-        return pic>1 ? AVPROBE_SCORE_MAX/2+1 : AVPROBE_SCORE_MAX/4; // +1 for .mpg
-    return 0;
-}
-#endif
-
 #if CONFIG_CAVSVIDEO_DEMUXER
 #define CAVS_SEQ_START_CODE       0x000001b0
 #define CAVS_PIC_I_START_CODE     0x000001b3
@@ -972,19 +938,6 @@ AVOutputFormat mpeg2video_muxer = {
 };
 #endif
 
-#if CONFIG_MPEGVIDEO_DEMUXER
-AVInputFormat mpegvideo_demuxer = {
-    "mpegvideo",
-    NULL_IF_CONFIG_SMALL("raw MPEG video"),
-    0,
-    mpegvideo_probe,
-    ff_raw_video_read_header,
-    ff_raw_read_partial_packet,
-    .flags= AVFMT_GENERIC_INDEX,
-    .value = CODEC_ID_MPEG1VIDEO,
-};
-#endif
-
 #if CONFIG_CAVSVIDEO_DEMUXER
 AVInputFormat cavsvideo_demuxer = {
     "cavsvideo",