Update specification and reference implementation links.

[ffmpeg] / libavcodec / msvideo1.c

diff --git a/libavcodec/msvideo1.c b/libavcodec/msvideo1.c
index 789d7e798b9dbf3698cc07047d5b27201e2cf102..1e3f6cce2319b82f87f1f4827c8476065c953bfe 100644 (file)
--- a/libavcodec/msvideo1.c
+++ b/libavcodec/msvideo1.c
@@ -2,19 +2,21 @@
  * Microsoft Video-1 Decoder
  * Copyright (C) 2003 the ffmpeg project
  *
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  *
  */
 
@@ -39,7 +41,6 @@
 #include "dsputil.h"
 
 #define PALETTE_COUNT 256
-#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
 #define CHECK_STREAM_PTR(n) \
   if ((stream_ptr + n) > s->size ) { \
     av_log(s->avctx, AV_LOG_ERROR, " MS Video-1 warning: stream_ptr out of bounds (%d >= %d)\n", \
@@ -157,8 +158,8 @@ static void msvideo1_decode_8bit(Msvideo1Context *s)
 
                 for (pixel_y = 0; pixel_y < 4; pixel_y++) {
                     for (pixel_x = 0; pixel_x < 4; pixel_x++, flags >>= 1)
-                        pixels[pixel_ptr++] = 
-                            colors[((pixel_y & 0x2) << 1) + 
+                        pixels[pixel_ptr++] =
+                            colors[((pixel_y & 0x2) << 1) +
                                 (pixel_x & 0x2) + ((flags & 0x1) ^ 1)];
                     pixel_ptr -= row_dec;
                 }
@@ -244,31 +245,31 @@ static void msvideo1_decode_16bit(Msvideo1Context *s)
                 flags = (byte_b << 8) | byte_a;
 
                 CHECK_STREAM_PTR(4);
-                colors[0] = LE_16(&s->buf[stream_ptr]);
+                colors[0] = AV_RL16(&s->buf[stream_ptr]);
                 stream_ptr += 2;
-                colors[1] = LE_16(&s->buf[stream_ptr]);
+                colors[1] = AV_RL16(&s->buf[stream_ptr]);
                 stream_ptr += 2;
 
                 if (colors[0] & 0x8000) {
                     /* 8-color encoding */
                     CHECK_STREAM_PTR(12);
-                    colors[2] = LE_16(&s->buf[stream_ptr]);
+                    colors[2] = AV_RL16(&s->buf[stream_ptr]);
                     stream_ptr += 2;
-                    colors[3] = LE_16(&s->buf[stream_ptr]);
+                    colors[3] = AV_RL16(&s->buf[stream_ptr]);
                     stream_ptr += 2;
-                    colors[4] = LE_16(&s->buf[stream_ptr]);
+                    colors[4] = AV_RL16(&s->buf[stream_ptr]);
                     stream_ptr += 2;
-                    colors[5] = LE_16(&s->buf[stream_ptr]);
+                    colors[5] = AV_RL16(&s->buf[stream_ptr]);
                     stream_ptr += 2;
-                    colors[6] = LE_16(&s->buf[stream_ptr]);
+                    colors[6] = AV_RL16(&s->buf[stream_ptr]);
                     stream_ptr += 2;
-                    colors[7] = LE_16(&s->buf[stream_ptr]);
+                    colors[7] = AV_RL16(&s->buf[stream_ptr]);
                     stream_ptr += 2;
 
                     for (pixel_y = 0; pixel_y < 4; pixel_y++) {
                         for (pixel_x = 0; pixel_x < 4; pixel_x++, flags >>= 1)
-                            pixels[pixel_ptr++] = 
-                                colors[((pixel_y & 0x2) << 1) + 
+                            pixels[pixel_ptr++] =
+                                colors[((pixel_y & 0x2) << 1) +
                                     (pixel_x & 0x2) + ((flags & 0x1) ^ 1)];
                         pixel_ptr -= row_dec;
                     }
@@ -303,15 +304,11 @@ static int msvideo1_decode_frame(AVCodecContext *avctx,
 {
     Msvideo1Context *s = (Msvideo1Context *)avctx->priv_data;
 
-       /* no supplementary picture */
-       if (buf_size == 0)
-               return 0;
-
     s->buf = buf;
     s->size = buf_size;
 
-       s->frame.reference = 1;
-       s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
+    s->frame.reference = 1;
+    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
     if (avctx->reget_buffer(avctx, &s->frame)) {
         av_log(s->avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
         return -1;