sonic: mark as experimental

[ffmpeg] / libavcodec / sunrast.c

diff --git a/libavcodec/sunrast.c b/libavcodec/sunrast.c
index 23999a07439fd73a84c6234762ebe28bbc7a844a..014c96d1836202b2172506d5d5405a41b8f08d7f 100644 (file)
--- a/libavcodec/sunrast.c
+++ b/libavcodec/sunrast.c
@@ -22,13 +22,7 @@
 #include "libavutil/intreadwrite.h"
 #include "libavutil/imgutils.h"
 #include "avcodec.h"
-
-#define RT_OLD          0
-#define RT_STANDARD     1
-#define RT_BYTE_ENCODED 2
-#define RT_FORMAT_RGB   3
-#define RT_FORMAT_TIFF  4
-#define RT_FORMAT_IFF   5
+#include "sunrast.h"
 
 typedef struct SUNRASTContext {
     AVFrame picture;
@@ -38,49 +32,58 @@ static av_cold int sunrast_init(AVCodecContext *avctx) {
     SUNRASTContext *s = avctx->priv_data;
 
     avcodec_get_frame_defaults(&s->picture);
-    avctx->coded_frame= &s->picture;
+    avctx->coded_frame = &s->picture;
 
     return 0;
 }
 
 static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
                                 int *data_size, AVPacket *avpkt) {
-    const uint8_t *buf = avpkt->data;
-    const uint8_t *buf_end = avpkt->data + avpkt->size;
+    const uint8_t *buf       = avpkt->data;
+    const uint8_t *buf_end   = avpkt->data + avpkt->size;
     SUNRASTContext * const s = avctx->priv_data;
-    AVFrame *picture = data;
-    AVFrame * const p = &s->picture;
+    AVFrame *picture         = data;
+    AVFrame * const p        = &s->picture;
     unsigned int w, h, depth, type, maptype, maplength, stride, x, y, len, alen;
     uint8_t *ptr, *ptr2 = NULL;
     const uint8_t *bufstart = buf;
+    int ret;
 
     if (avpkt->size < 32)
         return AVERROR_INVALIDDATA;
 
-    if (AV_RB32(buf) != 0x59a66a95) {
+    if (AV_RB32(buf) != RAS_MAGIC) {
         av_log(avctx, AV_LOG_ERROR, "this is not sunras encoded data\n");
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
 
-    w         = AV_RB32(buf+4);
-    h         = AV_RB32(buf+8);
-    depth     = AV_RB32(buf+12);
-    type      = AV_RB32(buf+20);
-    maptype   = AV_RB32(buf+24);
-    maplength = AV_RB32(buf+28);
+    w         = AV_RB32(buf + 4);
+    h         = AV_RB32(buf + 8);
+    depth     = AV_RB32(buf + 12);
+    type      = AV_RB32(buf + 20);
+    maptype   = AV_RB32(buf + 24);
+    maplength = AV_RB32(buf + 28);
     buf      += 32;
 
+    if (type == RT_EXPERIMENTAL) {
+        av_log_ask_for_sample(avctx, "unsupported (compression) type\n");
+        return AVERROR_PATCHWELCOME;
+    }
     if (type > RT_FORMAT_IFF) {
         av_log(avctx, AV_LOG_ERROR, "invalid (compression) type\n");
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
     if (av_image_check_size(w, h, 0, avctx)) {
         av_log(avctx, AV_LOG_ERROR, "invalid image size\n");
-        return -1;
+        return AVERROR_INVALIDDATA;
+    }
+    if (maptype == RMT_RAW) {
+        av_log_ask_for_sample(avctx, "unsupported colormap type\n");
+        return AVERROR_PATCHWELCOME;
     }
-    if (maptype & ~1) {
+    if (maptype > RMT_RAW) {
         av_log(avctx, AV_LOG_ERROR, "invalid colormap type\n");
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
 
     if (type == RT_FORMAT_TIFF || type == RT_FORMAT_IFF) {
@@ -102,11 +105,11 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
             avctx->pix_fmt = (type == RT_FORMAT_RGB) ? PIX_FMT_RGB24 : PIX_FMT_BGR24;
             break;
         case 32:
-            avctx->pix_fmt = (type == RT_FORMAT_RGB) ? PIX_FMT_RGB0 : PIX_FMT_BGR0;
+            avctx->pix_fmt = (type == RT_FORMAT_RGB) ? PIX_FMT_0RGB : PIX_FMT_0BGR;
             break;
         default:
             av_log(avctx, AV_LOG_ERROR, "invalid depth\n");
-            return -1;
+            return AVERROR_INVALIDDATA;
     }
 
     if (p->data[0])
@@ -114,9 +117,9 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
 
     if (w != avctx->width || h != avctx->height)
         avcodec_set_dimensions(avctx, w, h);
-    if (avctx->get_buffer(avctx, p) < 0) {
+    if ((ret = avctx->get_buffer(avctx, p)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
-        return -1;
+        return ret;
     }
 
     p->pict_type = AV_PICTURE_TYPE_I;
@@ -130,17 +133,13 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
     } else if (maplength) {
         unsigned int len = maplength / 3;
 
-        if (!maplength) {
-            av_log(avctx, AV_LOG_ERROR, "colormap expected\n");
-            return -1;
-        }
         if (maplength % 3 || maplength > 768) {
             av_log(avctx, AV_LOG_WARNING, "invalid colormap length\n");
-            return -1;
+            return AVERROR_INVALIDDATA;
         }
 
         ptr = p->data[1];
-        for (x=0; x<len; x++, ptr+=4)
+        for (x = 0; x < len; x++, ptr += 4)
             *(uint32_t *)ptr = (0xFF<<24) + (buf[x]<<16) + (buf[len+x]<<8) + buf[len+len+x];
     }
 
@@ -158,11 +157,11 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
 
     /* scanlines are aligned on 16 bit boundaries */
     len  = (depth * w + 7) >> 3;
-    alen = len + (len&1);
+    alen = len + (len & 1);
 
     if (type == RT_BYTE_ENCODED) {
         int value, run;
-        uint8_t *end = ptr + h*stride;
+        uint8_t *end = ptr + h * stride;
 
         x = 0;
         while (ptr != end && buf < buf_end) {
@@ -170,7 +169,7 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
             if (buf_end - buf < 1)
                 return AVERROR_INVALIDDATA;
 
-            if ((value = *buf++) == 0x80) {
+            if ((value = *buf++) == RLE_TRIGGER) {
                 run = *buf++ + 1;
                 if (run != 1)
                     value = *buf++;
@@ -187,7 +186,7 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
             }
         }
     } else {
-        for (y=0; y<h; y++) {
+        for (y = 0; y < h; y++) {
             if (buf_end - buf < len)
                 break;
             memcpy(ptr, buf, len);
@@ -220,7 +219,7 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
         av_freep(&ptr_free);
     }
 
-    *picture = s->picture;
+    *picture   = s->picture;
     *data_size = sizeof(AVFrame);
 
     return buf - bufstart;