Merge commit 'bbf71d46db3417b43bcbd745cbf235e8e2ff69ae'

[ffmpeg] / libavcodec / dnxhddec.c

diff --git a/libavcodec/dnxhddec.c b/libavcodec/dnxhddec.c
index 1034d8970b2662f7002277cc49f50ca137134897..044e4798b7302575bf30c9585944ef43bbace314 100644 (file)
--- a/libavcodec/dnxhddec.c
+++ b/libavcodec/dnxhddec.c
@@ -73,6 +73,7 @@ static av_cold int dnxhd_decode_init(AVCodecContext *avctx)
 
     ctx->avctx = avctx;
     ctx->cid = -1;
+    avctx->colorspace = AVCOL_SPC_BT709;
     return 0;
 }
 
@@ -349,7 +350,12 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
     uint8_t *dest_y, *dest_u, *dest_v;
     int dct_y_offset, dct_x_offset;
     int qscale, i;
+    int interlaced_mb = 0;
 
+    if (ctx->cid_table->cid == 1260) {
+        interlaced_mb = get_bits1(&ctx->gb);
+        qscale = get_bits(&ctx->gb, 10);
+    } else
     qscale = get_bits(&ctx->gb, 11);
     skip_bits1(&ctx->gb);
 
@@ -386,8 +392,12 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
         dest_u += frame->linesize[1];
         dest_v += frame->linesize[2];
     }
+    if (interlaced_mb) {
+        dct_linesize_luma   <<= 1;
+        dct_linesize_chroma <<= 1;
+    }
 
-    dct_y_offset = dct_linesize_luma << 3;
+    dct_y_offset = interlaced_mb ? frame->linesize[0] : (dct_linesize_luma << 3);
     dct_x_offset = 8 << shift1;
     if (!ctx->is_444) {
         ctx->idsp.idct_put(dest_y,                               dct_linesize_luma, ctx->blocks[0]);
@@ -396,7 +406,7 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
         ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, ctx->blocks[5]);
 
         if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) {
-            dct_y_offset = dct_linesize_chroma << 3;
+            dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3);
             ctx->idsp.idct_put(dest_u,                dct_linesize_chroma, ctx->blocks[2]);
             ctx->idsp.idct_put(dest_v,                dct_linesize_chroma, ctx->blocks[3]);
             ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, ctx->blocks[6]);
@@ -409,7 +419,7 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame,
         ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, ctx->blocks[7]);
 
         if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) {
-            dct_y_offset = dct_linesize_chroma << 3;
+            dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3);
             ctx->idsp.idct_put(dest_u,                               dct_linesize_chroma, ctx->blocks[2]);
             ctx->idsp.idct_put(dest_u + dct_x_offset,                dct_linesize_chroma, ctx->blocks[3]);
             ctx->idsp.idct_put(dest_u + dct_y_offset,                dct_linesize_chroma, ctx->blocks[8]);