Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavcodec / aasc.c

diff --git a/libavcodec/aasc.c b/libavcodec/aasc.c
index 197bfe5f0542819f9949d951bafabb4b63805955..db33eff5eba366b51bfdb81cdc5f2cb231d7645b 100644 (file)
--- a/libavcodec/aasc.c
+++ b/libavcodec/aasc.c
@@ -34,23 +34,26 @@
 
 typedef struct AascContext {
     AVCodecContext *avctx;
+    GetByteContext gb;
     AVFrame frame;
 } AascContext;
 
-#define FETCH_NEXT_STREAM_BYTE() \
-    if (stream_ptr >= buf_size) \
-    { \
-      av_log(s->avctx, AV_LOG_ERROR, " AASC: stream ptr just went out of bounds (fetch)\n"); \
-      break; \
-    } \
-    stream_byte = buf[stream_ptr++];
-
 static av_cold int aasc_decode_init(AVCodecContext *avctx)
 {
     AascContext *s = avctx->priv_data;
 
     s->avctx = avctx;
-    avctx->pix_fmt = PIX_FMT_BGR24;
+    switch (avctx->bits_per_coded_sample) {
+    case 16:
+        avctx->pix_fmt = PIX_FMT_RGB555;
+        break;
+    case 24:
+        avctx->pix_fmt = PIX_FMT_BGR24;
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n", avctx->bits_per_coded_sample);
+        return -1;
+    }
     avcodec_get_frame_defaults(&s->frame);
 
     return 0;
@@ -75,6 +78,12 @@ static int aasc_decode_frame(AVCodecContext *avctx,
     compr = AV_RL32(buf);
     buf += 4;
     buf_size -= 4;
+    switch (avctx->codec_tag) {
+    case MKTAG('A', 'A', 'S', '4'):
+        bytestream2_init(&s->gb, buf - 4, buf_size + 4);
+        ff_msrle_decode(avctx, (AVPicture*)&s->frame, 8, &s->gb);
+        break;
+    case MKTAG('A', 'A', 'S', 'C'):
     switch(compr){
     case 0:
         stride = (avctx->width * 3 + 3) & ~3;
@@ -89,12 +98,18 @@ static int aasc_decode_frame(AVCodecContext *avctx,
         }
         break;
     case 1:
-        ff_msrle_decode(avctx, (AVPicture*)&s->frame, 8, buf - 4, buf_size + 4);
+        bytestream2_init(&s->gb, buf, buf_size);
+        ff_msrle_decode(avctx, (AVPicture*)&s->frame, 8, &s->gb);
         break;
     default:
         av_log(avctx, AV_LOG_ERROR, "Unknown compression type %d\n", compr);
         return -1;
     }
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Unknown FourCC: %X\n", avctx->codec_tag);
+        return -1;
+    }
 
     *data_size = sizeof(AVFrame);
     *(AVFrame*)data = s->frame;
@@ -123,5 +138,5 @@ AVCodec ff_aasc_decoder = {
     .close          = aasc_decode_end,
     .decode         = aasc_decode_frame,
     .capabilities   = CODEC_CAP_DR1,
-    .long_name = NULL_IF_CONFIG_SMALL("Autodesk RLE"),
+    .long_name      = NULL_IF_CONFIG_SMALL("Autodesk RLE"),
 };