X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fffv1dec.c;h=31433e3782fc7c9ba52f54af4f33113f7eaa3401;hb=4fcdc9f3597289942de993f86caaf1d1b17057d9;hp=d8f35c34b99e379f3cc3731379abbc20a926d39a;hpb=bbd0ebfd835761d1abbe030a8a7866d88b2a8777;p=ffmpeg

diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
index d8f35c34b99..31433e3782f 100644
--- a/libavcodec/ffv1dec.c
+++ b/libavcodec/ffv1dec.c
@@ -142,7 +142,7 @@ static void decode_plane(FFV1Context *s, uint8_t *src,
                 }
             } else {
                 for (x = 0; x < w; x++) {
-                    ((uint16_t*)(src + stride*y))[x*pixel_stride] = sample[1][x] << (16 - s->avctx->bits_per_raw_sample);
+                    ((uint16_t*)(src + stride*y))[x*pixel_stride] = sample[1][x] << (16 - s->avctx->bits_per_raw_sample) | ((uint16_t **)sample)[1][x] >> (2 * s->avctx->bits_per_raw_sample - 16);
                 }
             }
         }
@@ -575,8 +575,19 @@ static int read_header(FFV1Context *f)
         if (!f->transparency && !f->chroma_planes) {
             if (f->avctx->bits_per_raw_sample <= 8)
                 f->avctx->pix_fmt = AV_PIX_FMT_GRAY8;
-            else
+            else if (f->avctx->bits_per_raw_sample == 10) {
+                f->packed_at_lsb = 1;
+                f->avctx->pix_fmt = AV_PIX_FMT_GRAY10;
+            } else if (f->avctx->bits_per_raw_sample == 12) {
+                f->packed_at_lsb = 1;
+                f->avctx->pix_fmt = AV_PIX_FMT_GRAY12;
+            } else if (f->avctx->bits_per_raw_sample == 16) {
+                f->packed_at_lsb = 1;
+                f->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
+            } else if (f->avctx->bits_per_raw_sample < 16) {
                 f->avctx->pix_fmt = AV_PIX_FMT_GRAY16;
+            } else
+                return AVERROR(ENOSYS);
         } else if (f->transparency && !f->chroma_planes) {
             if (f->avctx->bits_per_raw_sample <= 8)
                 f->avctx->pix_fmt = AV_PIX_FMT_YA8;
@@ -625,13 +636,22 @@ static int read_header(FFV1Context *f)
             case 0x10: f->avctx->pix_fmt = AV_PIX_FMT_YUVA422P10; break;
             case 0x11: f->avctx->pix_fmt = AV_PIX_FMT_YUVA420P10; break;
             }
+        } else if (f->avctx->bits_per_raw_sample == 12 && !f->transparency) {
+            f->packed_at_lsb = 1;
+            switch(16 * f->chroma_h_shift + f->chroma_v_shift) {
+            case 0x00: f->avctx->pix_fmt = AV_PIX_FMT_YUV444P12; break;
+            case 0x10: f->avctx->pix_fmt = AV_PIX_FMT_YUV422P12; break;
+            case 0x11: f->avctx->pix_fmt = AV_PIX_FMT_YUV420P12; break;
+            }
         } else if (f->avctx->bits_per_raw_sample == 16 && !f->transparency){
+            f->packed_at_lsb = 1;
             switch(16 * f->chroma_h_shift + f->chroma_v_shift) {
             case 0x00: f->avctx->pix_fmt = AV_PIX_FMT_YUV444P16; break;
             case 0x10: f->avctx->pix_fmt = AV_PIX_FMT_YUV422P16; break;
             case 0x11: f->avctx->pix_fmt = AV_PIX_FMT_YUV420P16; break;
             }
         } else if (f->avctx->bits_per_raw_sample == 16 && f->transparency){
+            f->packed_at_lsb = 1;
             switch(16 * f->chroma_h_shift + f->chroma_v_shift) {
             case 0x00: f->avctx->pix_fmt = AV_PIX_FMT_YUVA444P16; break;
             case 0x10: f->avctx->pix_fmt = AV_PIX_FMT_YUVA422P16; break;