avcodec/h263: Move decoding-only stuff to a new header h263dec.h

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/libavcodec/h263dec.h b/libavcodec/h263dec.h
new file mode 100644
index 0000000000..8d5f9a7add
--- /dev/null
+++ b/libavcodec/h263dec.h
@@ -0,0 +1,65 @@
+/*
+ * H.263 decoder internal header
+ *
+ * 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
+ */
+#ifndef AVCODEC_H263DEC_H
+#define AVCODEC_H263DEC_H
+
+#include "mpegvideo.h"
+#include "vlc.h"
+
+// The defines below define the number of bits that are read at once for
+// reading vlc values. Changing these may improve speed and data cache needs
+// be aware though that decreasing them may need the number of stages that is
+// passed to get_vlc* to be increased.
+#define H263_MV_VLC_BITS     9
+#define INTRA_MCBPC_VLC_BITS 6
+#define INTER_MCBPC_VLC_BITS 7
+#define CBPY_VLC_BITS 6
+#define TEX_VLC_BITS 9
+
+extern VLC ff_h263_intra_MCBPC_vlc;
+extern VLC ff_h263_inter_MCBPC_vlc;
+extern VLC ff_h263_cbpy_vlc;
+extern VLC ff_h263_mv_vlc;
+
+extern const enum AVPixelFormat ff_h263_hwaccel_pixfmt_list_420[];
+
+int ff_h263_decode_motion(MpegEncContext * s, int pred, int f_code);
+int ff_h263_decode_init(AVCodecContext *avctx);
+int ff_h263_decode_frame(AVCodecContext *avctx,
+                             void *data, int *got_frame,
+                             AVPacket *avpkt);
+int ff_h263_decode_end(AVCodecContext *avctx);
+void ff_h263_decode_init_vlc(void);
+int ff_h263_decode_picture_header(MpegEncContext *s);
+int ff_h263_decode_gob_header(MpegEncContext *s);
+int ff_h263_decode_mba(MpegEncContext *s);
+
+/**
+ * Print picture info if FF_DEBUG_PICT_INFO is set.
+ */
+void ff_h263_show_pict_info(MpegEncContext *s);
+
+int ff_intel_h263_decode_picture_header(MpegEncContext *s);
+int ff_h263_decode_mb(MpegEncContext *s,
+                      int16_t block[6][64]);
+
+int ff_h263_resync(MpegEncContext *s);
+
+#endif