dca: Remove separate header for DCA ExSS

There is no point in having a separate header for a single declaration.

libavcodec/dca.h

@@ -194,4 +194,6 @@ extern av_export const uint32_t avpriv_dca_sample_rates[16];
 int ff_dca_convert_bitstream(const uint8_t *src, int src_size, uint8_t *dst,
                              int max_size);
 
+void ff_dca_exss_parse_header(DCAContext *s);
+
 #endif /* AVCODEC_DCA_H */

libavcodec/dca_exss.c

@@ -22,7 +22,6 @@
 #include "libavutil/log.h"
 
 #include "dca.h"
-#include "dca_exss.h"
 #include "get_bits.h"
 
 /* extensions that reside in core substream */

libavcodec/dca_exss.h

-/*
- * DCA ExSS extension
- *
- * This file is part of Libav.
- *
- * 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.
- *
- * 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 Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVCODEC_DCA_EXSS_H
-#define AVCODEC_DCA_EXSS_H
-
-#include "dca.h"
-
-void ff_dca_exss_parse_header(DCAContext *s);
-
-#endif /* AVCODEC_DCA_EXSS_H */

libavcodec/dcadec.c

@@ -40,7 +40,6 @@
 #include "dcadata.h"
 #include "dcadsp.h"
 #include "dcahuff.h"
-#include "dca_exss.h"
 #include "fft.h"
 #include "fmtconvert.h"
 #include "get_bits.h"