Show profile in avcodec_string().

[ffmpeg] / libavcodec / truemotion1.c

diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c
index 94a54f4439bf14bc4532ed343e7d2d5101895f99..d6ea4c1a6cc87e23b16aa99e36987f238b109064 100644 (file)
--- a/libavcodec/truemotion1.c
+++ b/libavcodec/truemotion1.c
@@ -307,16 +307,12 @@ static void gen_vector_table24(TrueMotion1Context *s, const uint8_t *sel_vector_
 static int truemotion1_decode_header(TrueMotion1Context *s)
 {
     int i;
+    int width_shift = 0;
     int new_pix_fmt;
     struct frame_header header;
     uint8_t header_buffer[128];  /* logical maximum size of the header */
     const uint8_t *sel_vector_table;
 
-    /* There is 1 change bit per 4 pixels, so each change byte represents
-     * 32 pixels; divide width by 4 to obtain the number of change bits and
-     * then round up to the nearest byte. */
-    s->mb_change_bits_row_size = ((s->avctx->width >> 2) + 7) >> 3;
-
     header.header_size = ((s->buf[0] >> 5) | (s->buf[0] << 3)) & 0x7f;
     if (s->buf[0] < 0x10)
     {
@@ -378,8 +374,6 @@ static int truemotion1_decode_header(TrueMotion1Context *s)
             }
         }
     }
-    if (av_image_check_size(s->w, s->h, 0, s->avctx) < 0)
-        return -1;
 
     if (header.compression >= 17) {
         av_log(s->avctx, AV_LOG_ERROR, "invalid compression type (%d)\n", header.compression);
@@ -401,20 +395,31 @@ static int truemotion1_decode_header(TrueMotion1Context *s)
         }
     }
 
-    if (compression_types[header.compression].algorithm == ALGO_RGB24H)
+    if (compression_types[header.compression].algorithm == ALGO_RGB24H) {
         new_pix_fmt = PIX_FMT_RGB32;
-    else
+        width_shift = 1;
+    } else
         new_pix_fmt = PIX_FMT_RGB555; // RGB565 is supported as well
 
+    s->w >>= width_shift;
+    if (av_image_check_size(s->w, s->h, 0, s->avctx) < 0)
+        return -1;
+
     if (s->w != s->avctx->width || s->h != s->avctx->height ||
         new_pix_fmt != s->avctx->pix_fmt) {
         if (s->frame.data[0])
             s->avctx->release_buffer(s->avctx, &s->frame);
+        s->avctx->sample_aspect_ratio = (AVRational){ 1 << width_shift, 1 };
         s->avctx->pix_fmt = new_pix_fmt;
         avcodec_set_dimensions(s->avctx, s->w, s->h);
         av_fast_malloc(&s->vert_pred, &s->vert_pred_size, s->avctx->width * sizeof(unsigned int));
     }
 
+    /* There is 1 change bit per 4 pixels, so each change byte represents
+     * 32 pixels; divide width by 4 to obtain the number of change bits and
+     * then round up to the nearest byte. */
+    s->mb_change_bits_row_size = ((s->avctx->width >> (2 - width_shift)) + 7) >> 3;
+
     if ((header.deltaset != s->last_deltaset) || (header.vectable != s->last_vectable))
     {
         if (compression_types[header.compression].algorithm == ALGO_RGB24H)
@@ -827,7 +832,7 @@ static void truemotion1_decode_24bit(TrueMotion1Context *s)
                 }
             }
 
-            pixels_left -= 4;
+            pixels_left -= 2;
         }
 
         /* next change row */