libxvid: Separate libxvid encoder from libxvid rate control code.

This allows compiling the Xvid rate control code without the encoder.

libavcodec/Makefile

@@ -42,6 +42,7 @@ OBJS-$(CONFIG_GOLOMB)                  += golomb.o
 OBJS-$(CONFIG_H264DSP)                 += h264dsp.o h264idct.o
 OBJS-$(CONFIG_H264PRED)                += h264pred.o
 OBJS-$(CONFIG_HUFFMAN)                 += huffman.o
+OBJS-$(CONFIG_LIBXVID)                 += libxvid_rc.o
 OBJS-$(CONFIG_LPC)                     += lpc.o
 OBJS-$(CONFIG_LSP)                     += lsp.o
 OBJS-$(CONFIG_MDCT)                    += mdct_fixed.o mdct_float.o
@@ -615,7 +616,7 @@ OBJS-$(CONFIG_LIBVPX_DECODER)             += libvpxdec.o
 OBJS-$(CONFIG_LIBVPX_ENCODER)             += libvpxenc.o
 OBJS-$(CONFIG_LIBX264_ENCODER)            += libx264.o
 OBJS-$(CONFIG_LIBXAVS_ENCODER)            += libxavs.o
-OBJS-$(CONFIG_LIBXVID)                    += libxvidff.o libxvid_rc.o
+OBJS-$(CONFIG_LIBXVID_ENCODER)            += libxvidff.o
 
 # parsers
 OBJS-$(CONFIG_AAC_PARSER)              += aac_parser.o aac_ac3_parser.o \

libavcodec/libxvid_rc.c

@@ -20,8 +20,13 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "config.h"
 #include <xvid.h>
 #include <unistd.h>
+#if !HAVE_MKSTEMP
+#include <fcntl.h>
+#endif
+
 #include "avcodec.h"
 #include "libxvid_internal.h"
 //#include "dsputil.h"
@@ -30,6 +35,42 @@
 #undef NDEBUG
 #include <assert.h>
 
+/* Wrapper to work around the lack of mkstemp() on mingw.
+ * Also, tries to create file in /tmp first, if possible.
+ * *prefix can be a character constant; *filename will be allocated internally.
+ * @return file descriptor of opened file (or -1 on error)
+ * and opened file name in **filename. */
+int ff_tempfile(const char *prefix, char **filename) {
+    int fd=-1;
+#if !HAVE_MKSTEMP
+    *filename = tempnam(".", prefix);
+#else
+    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
+    *filename = av_malloc(len);
+#endif
+    /* -----common section-----*/
+    if (*filename == NULL) {
+        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
+        return -1;
+    }
+#if !HAVE_MKSTEMP
+    fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
+#else
+    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
+    fd = mkstemp(*filename);
+    if (fd < 0) {
+        snprintf(*filename, len, "./%sXXXXXX", prefix);
+        fd = mkstemp(*filename);
+    }
+#endif
+    /* -----common section-----*/
+    if (fd < 0) {
+        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
+        return -1;
+    }
+    return fd; /* success */
+}
+
 int ff_xvid_rate_control_init(MpegEncContext *s){
     char *tmp_name;
     int fd, i;

libavcodec/libxvidff.c

@@ -33,9 +33,6 @@
 #include "libavutil/mathematics.h"
 #include "libxvid_internal.h"
 #include "mpegvideo.h"
-#if !HAVE_MKSTEMP
-#include <fcntl.h>
-#endif
 
 /**
  * Buffer management macros.
@@ -83,42 +80,6 @@ struct xvid_ff_pass1 {
  * rate-control plugin.
  */
 
-/* Wrapper to work around the lack of mkstemp() on mingw.
- * Also, tries to create file in /tmp first, if possible.
- * *prefix can be a character constant; *filename will be allocated internally.
- * @return file descriptor of opened file (or -1 on error)
- * and opened file name in **filename. */
-int ff_tempfile(const char *prefix, char **filename) {
-    int fd=-1;
-#if !HAVE_MKSTEMP
-    *filename = tempnam(".", prefix);
-#else
-    size_t len = strlen(prefix) + 12; /* room for "/tmp/" and "XXXXXX\0" */
-    *filename = av_malloc(len);
-#endif
-    /* -----common section-----*/
-    if (*filename == NULL) {
-        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot allocate file name\n");
-        return -1;
-    }
-#if !HAVE_MKSTEMP
-    fd = open(*filename, O_RDWR | O_BINARY | O_CREAT, 0444);
-#else
-    snprintf(*filename, len, "/tmp/%sXXXXXX", prefix);
-    fd = mkstemp(*filename);
-    if (fd < 0) {
-        snprintf(*filename, len, "./%sXXXXXX", prefix);
-        fd = mkstemp(*filename);
-    }
-#endif
-    /* -----common section-----*/
-    if (fd < 0) {
-        av_log(NULL, AV_LOG_ERROR, "ff_tempfile: Cannot open temporary file %s\n", *filename);
-        return -1;
-    }
-    return fd; /* success */
-}
-
 /**
  * Initialize the two-pass plugin and context.
  *