avcodec/utvideo: Split UTvideoContext into decoder and encoder contexts

In particular the encoder used only a small part of the context:
The new encoder context is only 128B here. It used to be 32992.

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

1 files changed, 17 insertions, 1 deletions

diff --git a/libavcodec/utvideoenc.c b/libavcodec/utvideoenc.c
index 6e87bbc2b6..1fcb6854f2 100644
--- a/libavcodec/utvideoenc.c
+++ b/libavcodec/utvideoenc.c
@@ -33,11 +33,28 @@
 #include "encode.h"
 #include "bswapdsp.h"
 #include "bytestream.h"
+#include "lossless_videoencdsp.h"
 #include "put_bits.h"
 #include "mathops.h"
 #include "utvideo.h"
 #include "huffman.h"
 
+typedef struct UtvideoContext {
+    const AVClass *class;
+    BswapDSPContext bdsp;
+    LLVidEncDSPContext llvidencdsp;
+
+    uint32_t frame_info_size, flags;
+    int      planes;
+    int      slices;
+    int      compression;
+    int      frame_pred;
+
+    ptrdiff_t slice_stride;
+    uint8_t  *slice_bits, *slice_buffer[4];
+    int       slice_bits_size;
+} UtvideoContext;
+
 typedef struct HuffEntry {
     uint16_t sym;
     uint8_t  len;
@@ -76,7 +93,6 @@ static av_cold int utvideo_encode_init(AVCodecContext *avctx)
     int i, subsampled_height;
     uint32_t original_format;
 
-    c->avctx           = avctx;
     c->frame_info_size = 4;
     c->slice_stride    = FFALIGN(avctx->width, 32);