lavc: add a null bitstream filter

[ffmpeg] / libavcodec / h261.h

diff --git a/libavcodec/h261.h b/libavcodec/h261.h
index b5201b1df65786ceb1d05b45ce8a33a2f753b9b1..fdfe56098ba4bf7cf8d4819d2ec82e1e8a2addea 100644 (file)
--- a/libavcodec/h261.h
+++ b/libavcodec/h261.h
@@ -1,5 +1,5 @@
 /*
- * H261 decoder
+ * H.261 codec
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  * Copyright (c) 2004 Maarten Daniels
  *
@@ -22,18 +22,19 @@
 
 /**
  * @file
- * h261codec.
+ * H.261 codec.
  */
 
 #ifndef AVCODEC_H261_H
 #define AVCODEC_H261_H
 
 #include "mpegvideo.h"
+#include "rl.h"
 
 /**
  * H261Context
  */
-typedef struct H261Context{
+typedef struct H261Context {
     MpegEncContext s;
 
     int current_mba;
@@ -44,13 +45,23 @@ typedef struct H261Context{
     int current_mv_y;
     int gob_number;
     int gob_start_code_skipped; // 1 if gob start code is already read before gob header is read
-}H261Context;
+} H261Context;
 
 #define MB_TYPE_H261_FIL 0x800000
 
-extern uint8_t ff_h261_rl_table_store[2][2*MAX_RUN + MAX_LEVEL + 3];
+extern uint8_t ff_h261_rl_table_store[2][2 * MAX_RUN + MAX_LEVEL + 3];
+
+extern const uint8_t ff_h261_mba_code[35];
+extern const uint8_t ff_h261_mba_bits[35];
+extern const uint8_t ff_h261_mtype_code[10];
+extern const uint8_t ff_h261_mtype_bits[10];
+extern const int     ff_h261_mtype_map[10];
+extern const uint8_t ff_h261_mv_tab[17][2];
+extern const uint8_t ff_h261_cbp_tab[63][2];
+extern RLTable ff_h261_rl_tcoeff;
 
 void ff_h261_loop_filter(MpegEncContext *s);
+void ff_h261_common_init(void);
 
 int ff_h261_get_picture_format(int width, int height);
 void ff_h261_reorder_mb_index(MpegEncContext *s);