diracdec: Move strides to bytes, and pointer types to uint8_t.

Start templating functions for move to support 10-bit
Parts of this patch were written by Rostislav Pehlivanov

libavcodec/dirac.c

@@ -118,7 +118,7 @@ static const enum AVPixelFormat dirac_pix_fmt[2][3] = {
 /* [DIRAC_STD] 10.3 Parse Source Parameters.
  * source_parameters(base_video_format) */
 static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
-                                   dirac_source_params *source)
+                                   dirac_source_params *source, int *bit_depth)
 {
     AVRational frame_rate = { 0, 0 };
     unsigned luma_depth = 8, luma_offset = 16;
@@ -239,6 +239,9 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
     if (luma_depth > 8)
         av_log(avctx, AV_LOG_WARNING, "Bitdepth greater than 8\n");
 
+
+    *bit_depth = luma_depth;
+
     avctx->pix_fmt = dirac_pix_fmt[!luma_offset][source->chroma_format];
     avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_x_shift, &chroma_y_shift);
     if ((source->width % (1<<chroma_x_shift)) || (source->height % (1<<chroma_y_shift))) {
@@ -290,7 +293,8 @@ static int parse_source_parameters(AVCodecContext *avctx, GetBitContext *gb,
 
 /* [DIRAC_STD] 10. Sequence Header. sequence_header() */
 int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
-                                       dirac_source_params *source)
+                                       dirac_source_params *source,
+                                       int *bit_depth)
 {
     unsigned version_major;
     unsigned video_format, picture_coding_mode;
@@ -318,7 +322,7 @@ int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
 
     /* [DIRAC_STD] 10.3 Source Parameters
      * Override the defaults. */
-    if (ret = parse_source_parameters(avctx, gb, source))
+    if (ret = parse_source_parameters(avctx, gb, source, bit_depth))
         return ret;
 
     ret = ff_set_dimensions(avctx, source->width, source->height);

libavcodec/dirac.h

@@ -55,6 +55,7 @@ typedef struct dirac_source_params {
 } dirac_source_params;
 
 int avpriv_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb,
-                                       dirac_source_params *source);
+                                       dirac_source_params *source,
+                                       int *bit_depth);
 
 #endif /* AVCODEC_DIRAC_H */

libavformat/oggparsedirac.c

@@ -31,7 +31,7 @@ static int dirac_header(AVFormatContext *s, int idx)
     AVStream *st = s->streams[idx];
     dirac_source_params source;
     GetBitContext gb;
-    int ret;
+    int ret, bit_depth;
 
     // already parsed the header
     if (st->codec->codec_id == AV_CODEC_ID_DIRAC)
@@ -41,7 +41,7 @@ static int dirac_header(AVFormatContext *s, int idx)
     if (ret < 0)
         return ret;
 
-    ret = avpriv_dirac_parse_sequence_header(st->codec, &gb, &source);
+    ret = avpriv_dirac_parse_sequence_header(st->codec, &gb, &source, &bit_depth);
     if (ret < 0)
         return ret;