From ca8c7591735c0f80cc29e31e2e92cb10228e14c7 Mon Sep 17 00:00:00 2001
From: Vittorio Giovara <vittorio.giovara@gmail.com>
Date: Sat, 20 Feb 2016 02:29:43 -0500
Subject: [PATCH] intrax8: Remove mpegvideo dependency

---
 libavcodec/intrax8.c |  7 +------
 libavcodec/intrax8.h | 10 +---------
 libavcodec/vc1dec.c  |  3 +--
 libavcodec/wmv2dec.c |  2 +-
 4 files changed, 4 insertions(+), 18 deletions(-)

diff --git a/libavcodec/intrax8.c b/libavcodec/intrax8.c
index 3d396b8e0a..4d8d5c8456 100644
--- a/libavcodec/intrax8.c
+++ b/libavcodec/intrax8.c
@@ -24,7 +24,6 @@
 #include "avcodec.h"
 #include "get_bits.h"
 #include "idctdsp.h"
-#include "mpegvideo.h"
 #include "msmpeg4data.h"
 #include "intrax8huf.h"
 #include "intrax8.h"
@@ -734,8 +733,7 @@ av_cold int ff_intrax8_common_init(AVCodecContext *avctx,
                                    IntraX8Context *w, IDCTDSPContext *idsp,
                                    int16_t (*block)[64],
                                    int block_last_index[12],
-                                   int mb_width, int mb_height,
-                                   MpegEncContext *const s)
+                                   int mb_width, int mb_height)
 {
     int ret = x8_vlc_init();
     if (ret < 0)
@@ -747,7 +745,6 @@ av_cold int ff_intrax8_common_init(AVCodecContext *avctx,
     w->mb_height = mb_height;
     w->block = block;
     w->block_last_index = block_last_index;
-    w->s = s;
 
     // two rows, 2 blocks per cannon mb
     w->prediction_table = av_mallocz(w->mb_width * 2 * 2);
@@ -777,9 +774,7 @@ int ff_intrax8_decode_picture(IntraX8Context *const w, Picture *pict,
                               int dquant, int quant_offset,
                               int loopfilter, int lowdelay)
 {
-    MpegEncContext *const s = w->s;
     int mb_xy;
-    assert(s);
 
     w->gb     = gb;
     w->dquant = dquant;
diff --git a/libavcodec/intrax8.h b/libavcodec/intrax8.h
index ebc9a79a30..ad172b16be 100644
--- a/libavcodec/intrax8.h
+++ b/libavcodec/intrax8.h
@@ -21,7 +21,6 @@
 
 #include "blockdsp.h"
 #include "get_bits.h"
-#include "mpegvideo.h"
 #include "idctdsp.h"
 #include "intrax8dsp.h"
 #include "mpegpicture.h"
@@ -41,7 +40,6 @@ typedef struct IntraX8Context {
     int16_t (*block)[64];
 
     // set by the caller codec
-    MpegEncContext *s;
     IntraX8DSPContext dsp;
     IDCTDSPContext idsp;
     BlockDSPContext bdsp;
@@ -75,7 +73,6 @@ typedef struct IntraX8Context {
 
 /**
  * Initialize IntraX8 frame decoder.
- * Requires valid MpegEncContext with valid s->mb_width before calling.
  * @param avctx pointer to AVCodecContext
  * @param w pointer to IntraX8Context
  * @param idsp pointer to IDCTDSPContext
@@ -83,15 +80,13 @@ typedef struct IntraX8Context {
  * @param block_last_index pointer to index array
  * @param mb_width macroblock width
  * @param mb_height macroblock height
- * @param s pointer to MpegEncContext of the parent codec
  * @return 0 on success, a negative AVERROR value on error
  */
 int ff_intrax8_common_init(AVCodecContext *avctx,
                            IntraX8Context *w, IDCTDSPContext *idsp,
                            int16_t (*block)[64],
                            int block_last_index[12],
-                           int mb_width, int mb_height,
-                           MpegEncContext *const s);
+                           int mb_width, int mb_height);
 
 /**
  * Destroy IntraX8 frame structure.
@@ -101,9 +96,6 @@ void ff_intrax8_common_end(IntraX8Context *w);
 
 /**
  * Decode single IntraX8 frame.
- * The parent codec must call ff_mpv_frame_start() before calling this function.
- * The parent codec must call ff_mpv_frame_end() after calling this function.
- * This function does not use ff_mpv_decode_mb().
  * @param w pointer to IntraX8Context
  * @param pict the output Picture containing an AVFrame
  * @param gb open bitstream reader
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index f72b6c644f..d1ac5c309e 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -381,8 +381,7 @@ av_cold int ff_vc1_decode_init_alloc_tables(VC1Context *v)
 
     ret = ff_intrax8_common_init(s->avctx, &v->x8, &s->idsp,
                                  s->block, s->block_last_index,
-                                 s->mb_width, s->mb_height,
-                                 s);
+                                 s->mb_width, s->mb_height);
     if (ret < 0)
         goto error;
 
diff --git a/libavcodec/wmv2dec.c b/libavcodec/wmv2dec.c
index f01a743b68..e1f86d854b 100644
--- a/libavcodec/wmv2dec.c
+++ b/libavcodec/wmv2dec.c
@@ -476,7 +476,7 @@ static av_cold int wmv2_decode_init(AVCodecContext *avctx)
 
     return ff_intrax8_common_init(avctx, &w->x8, &w->s.idsp,
                                   w->s.block, w->s.block_last_index,
-                                  w->s.mb_width, w->s.mb_height, &w->s);
+                                  w->s.mb_width, w->s.mb_height);
 }
 
 static av_cold int wmv2_decode_end(AVCodecContext *avctx)