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authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-01-24 21:54:45 +0100
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-01-29 18:34:30 +0100
commit7f6596c8bb63d5ab8dec240568461b51d3b79c76 (patch)
tree6a4cc56e3aca5349b6aa4527202e7941e828a630 /libavcodec/h263dec.h
parent85bbae8473029a96d60cd0f9d8956a7c8aca49bb (diff)
downloadffmpeg-7f6596c8bb63d5ab8dec240568461b51d3b79c76.tar.gz
avcodec/h263: Move decoding-only stuff to a new header h263dec.h
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec/h263dec.h')
-rw-r--r--libavcodec/h263dec.h65
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