Merge commit '57d11e5e28bfe0bc445ad78fc033aafa73068bb4'

* commit '57d11e5e28bfe0bc445ad78fc033aafa73068bb4':
  fraps: return meaningful error codes.
  kgv1dec: return meaningful error codes.
  kmvc: return meaningful error codes.
  wnv1: return meaningful error codes.
  dpx: return meaningful error codes.
  truemotion1: return meaningful error codes
  pnm: return meaningful error codes.

Conflicts:
	libavcodec/dpx.c
	libavcodec/fraps.c
	libavcodec/kmvc.c
	libavcodec/pnm.c
	libavcodec/pnmdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

7 files changed, 54 insertions, 51 deletions

diff --git a/libavcodec/dpx.c b/libavcodec/dpx.c
index a9a8c16d6c..92c0e4b8d1 100644
--- a/libavcodec/dpx.c
+++ b/libavcodec/dpx.c
@@ -71,7 +71,7 @@ static int decode_frame(AVCodecContext *avctx,
 
     unsigned int offset;
     int magic_num, endian;
-    int x, y, i;
+    int x, y, i, ret;
     int w, h, bits_per_color, descriptor, elements, packing, total_size;
 
     unsigned int rgbBuffer = 0;
@@ -93,7 +93,7 @@ static int decode_frame(AVCodecContext *avctx,
         endian = 1;
     } else {
         av_log(avctx, AV_LOG_ERROR, "DPX marker not found\n");
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
 
     offset = read32(&buf, endian);
@@ -105,8 +105,8 @@ static int decode_frame(AVCodecContext *avctx,
     buf = avpkt->data + 0x304;
     w = read32(&buf, endian);
     h = read32(&buf, endian);
-    if (av_image_check_size(w, h, 0, avctx))
-        return AVERROR(EINVAL);
+    if ((ret = av_image_check_size(w, h, 0, avctx)) < 0)
+        return ret;
 
     if (w != avctx->width || h != avctx->height)
         avcodec_set_dimensions(avctx, w, h);
@@ -141,7 +141,7 @@ static int decode_frame(AVCodecContext *avctx,
             break;
         default:
             av_log(avctx, AV_LOG_ERROR, "Unsupported descriptor %d\n", descriptor);
-            return -1;
+            return AVERROR_INVALIDDATA;
     }
 
     switch (bits_per_color) {
@@ -183,14 +183,14 @@ static int decode_frame(AVCodecContext *avctx,
             break;
         default:
             av_log(avctx, AV_LOG_ERROR, "Unsupported color depth : %d\n", bits_per_color);
-            return -1;
+            return AVERROR_INVALIDDATA;
     }
 
     if (s->picture.data[0])
         avctx->release_buffer(avctx, &s->picture);
-    if (ff_get_buffer(avctx, p) < 0) {
+    if ((ret = ff_get_buffer(avctx, p)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
-        return -1;
+        return ret;
     }
 
     // Move pointer to offset from start of file
@@ -201,7 +201,7 @@ static int decode_frame(AVCodecContext *avctx,
 
     if (total_size > avpkt->size) {
         av_log(avctx, AV_LOG_ERROR, "Overread buffer. Invalid header?\n");
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
     switch (bits_per_color) {
     case 10:
diff --git a/libavcodec/fraps.c b/libavcodec/fraps.c
index 6500c853e2..6cdb0d99a3 100644
--- a/libavcodec/fraps.c
+++ b/libavcodec/fraps.c
@@ -88,7 +88,7 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
                                int h, const uint8_t *src, int size, int Uoff,
                                const int step)
 {
-    int i, j;
+    int i, j, ret;
     GetBitContext gb;
     VLC vlc;
     Node nodes[512];
@@ -96,9 +96,9 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
     for(i = 0; i < 256; i++)
         nodes[i].count = bytestream_get_le32(&src);
     size -= 1024;
-    if (ff_huff_build_tree(s->avctx, &vlc, 256, nodes, huff_cmp,
-                           FF_HUFFMAN_FLAG_ZERO_COUNT) < 0)
-        return -1;
+    if ((ret = ff_huff_build_tree(s->avctx, &vlc, 256, nodes, huff_cmp,
+                                  FF_HUFFMAN_FLAG_ZERO_COUNT)) < 0)
+        return ret;
     /* we have built Huffman table and are ready to decode plane */
 
     /* convert bits so they may be used by standard bitreader */
@@ -139,11 +139,10 @@ static int decode_frame(AVCodecContext *avctx,
     const uint32_t *buf32;
     uint32_t *luma1,*luma2,*cb,*cr;
     uint32_t offs[4];
-    int i, j, is_chroma;
+    int i, j, ret, is_chroma;
     const int planes = 3;
     uint8_t *out;
     enum AVPixelFormat pix_fmt;
-    int ret;
 
     header = AV_RL32(buf);
     version = header & 0xff;
@@ -249,6 +248,7 @@ static int decode_frame(AVCodecContext *avctx,
             memcpy(&f->data[0][ (avctx->height-y)*f->linesize[0] ],
                    &buf[y*avctx->width*3],
                    3*avctx->width);
+
         break;
 
     case 2:
@@ -259,10 +259,13 @@ static int decode_frame(AVCodecContext *avctx,
          */
         for(i = 0; i < planes; i++){
             is_chroma = !!i;
-            if(fraps2_decode_plane(s, f->data[i], f->linesize[i], avctx->width >> is_chroma,
-                    avctx->height >> is_chroma, buf + offs[i], offs[i + 1] - offs[i], is_chroma, 1) < 0) {
+            if ((ret = fraps2_decode_plane(s, f->data[i], f->linesize[i],
+                                           avctx->width  >> is_chroma,
+                                           avctx->height >> is_chroma,
+                                           buf + offs[i], offs[i + 1] - offs[i],
+                                           is_chroma, 1)) < 0) {
                 av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
-                return AVERROR_INVALIDDATA;
+                return ret;
             }
         }
         break;
@@ -270,10 +273,11 @@ static int decode_frame(AVCodecContext *avctx,
     case 5:
         /* Virtually the same as version 4, but is for RGB24 */
         for(i = 0; i < planes; i++){
-            if(fraps2_decode_plane(s, f->data[0] + i + (f->linesize[0] * (avctx->height - 1)), -f->linesize[0],
-                    avctx->width, avctx->height, buf + offs[i], offs[i + 1] - offs[i], 0, 3) < 0) {
+            if ((ret = fraps2_decode_plane(s, f->data[0] + i + (f->linesize[0] * (avctx->height - 1)),
+                                           -f->linesize[0], avctx->width, avctx->height,
+                                           buf + offs[i], offs[i + 1] - offs[i], 0, 3)) < 0) {
                 av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
-                return AVERROR_INVALIDDATA;
+                return ret;
             }
         }
         out = f->data[0];
diff --git a/libavcodec/kgv1dec.c b/libavcodec/kgv1dec.c
index 0199636822..008843c673 100644
--- a/libavcodec/kgv1dec.c
+++ b/libavcodec/kgv1dec.c
@@ -55,14 +55,14 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
     int w, h, i, res;
 
     if (avpkt->size < 2)
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     w = (buf[0] + 1) * 8;
     h = (buf[1] + 1) * 8;
     buf += 2;
 
-    if (av_image_check_size(w, h, 0, avctx))
-        return -1;
+    if ((res = av_image_check_size(w, h, 0, avctx)) < 0)
+        return res;
 
     if (w != avctx->width || h != avctx->height) {
         if (c->prev.data[0])
diff --git a/libavcodec/kmvc.c b/libavcodec/kmvc.c
index edfafa0401..ffef77138b 100644
--- a/libavcodec/kmvc.c
+++ b/libavcodec/kmvc.c
@@ -264,11 +264,10 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
 {
     KmvcContext *const ctx = avctx->priv_data;
     uint8_t *out, *src;
-    int i;
+    int i, ret;
     int header;
     int blocksize;
     const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
-    int ret;
 
     bytestream2_init(&ctx->g, avpkt->data, avpkt->size);
     if (ctx->pic.data[0])
@@ -383,7 +382,7 @@ static av_cold int decode_init(AVCodecContext * avctx)
 
     if (avctx->width > 320 || avctx->height > 200) {
         av_log(avctx, AV_LOG_ERROR, "KMVC supports frames <= 320x200\n");
-        return AVERROR_INVALIDDATA;
+        return AVERROR(EINVAL);
     }
 
     c->frm0 = av_mallocz(320 * 200);
diff --git a/libavcodec/pnm.c b/libavcodec/pnm.c
index 13ecbb057f..8972143eab 100644
--- a/libavcodec/pnm.c
+++ b/libavcodec/pnm.c
@@ -65,7 +65,7 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
     pnm_get(s, buf1, sizeof(buf1));
     s->type= buf1[1]-'0';
     if(buf1[0] != 'P')
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     if (s->type==1 || s->type==4) {
         avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
@@ -103,12 +103,12 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
             } else if (!strcmp(buf1, "ENDHDR")) {
                 break;
             } else {
-                return -1;
+                return AVERROR_INVALIDDATA;
             }
         }
         /* check that all tags are present */
         if (w <= 0 || h <= 0 || maxval <= 0 || depth <= 0 || tuple_type[0] == '\0' || av_image_check_size(w, h, 0, avctx) || s->bytestream >= s->bytestream_end)
-            return -1;
+            return AVERROR_INVALIDDATA;
 
         avctx->width  = w;
         avctx->height = h;
@@ -137,18 +137,18 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
                 avctx->pix_fmt = AV_PIX_FMT_RGBA64BE;
             }
         } else {
-            return -1;
+            return AVERROR_INVALIDDATA;
         }
         return 0;
     } else {
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
     pnm_get(s, buf1, sizeof(buf1));
     w = atoi(buf1);
     pnm_get(s, buf1, sizeof(buf1));
     h = atoi(buf1);
     if(w <= 0 || h <= 0 || av_image_check_size(w, h, 0, avctx) || s->bytestream >= s->bytestream_end)
-        return -1;
+        return AVERROR_INVALIDDATA;
 
     avctx->width  = w;
     avctx->height = h;
@@ -168,7 +168,7 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
             } else {
                 av_log(avctx, AV_LOG_ERROR, "Unsupported pixel format\n");
                 avctx->pix_fmt = AV_PIX_FMT_NONE;
-                return -1;
+                return AVERROR_INVALIDDATA;
             }
         }
     }else
@@ -176,10 +176,10 @@ int ff_pnm_decode_header(AVCodecContext *avctx, PNMContext * const s)
     /* more check if YUV420 */
     if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) {
         if ((avctx->width & 1) != 0)
-            return -1;
+            return AVERROR_INVALIDDATA;
         h = (avctx->height * 2);
         if ((h % 3) != 0)
-            return -1;
+            return AVERROR_INVALIDDATA;
         h /= 3;
         avctx->height = h;
     }
diff --git a/libavcodec/pnmdec.c b/libavcodec/pnmdec.c
index fd17fe3499..1c22f74052 100644
--- a/libavcodec/pnmdec.c
+++ b/libavcodec/pnmdec.c
@@ -41,8 +41,8 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
     s->bytestream       = (uint8_t *)buf;
     s->bytestream_end   = (uint8_t *)buf + buf_size;
 
-    if (ff_pnm_decode_header(avctx, s) < 0)
-        return AVERROR_INVALIDDATA;
+    if ((ret = ff_pnm_decode_header(avctx, s)) < 0)
+        return ret;
 
     if (p->data[0])
         avctx->release_buffer(avctx, p);
@@ -57,7 +57,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
 
     switch (avctx->pix_fmt) {
     default:
-        return AVERROR_INVALIDDATA;
+        return AVERROR(EINVAL);
     case AV_PIX_FMT_RGBA64BE:
         n = avctx->width * 8;
         components=4;
diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c
index e2c1d2804a..eba48ac630 100644
--- a/libavcodec/truemotion1.c
+++ b/libavcodec/truemotion1.c
@@ -308,7 +308,7 @@ static void gen_vector_table24(TrueMotion1Context *s, const uint8_t *sel_vector_
  * there was an error while decoding the header */
 static int truemotion1_decode_header(TrueMotion1Context *s)
 {
-    int i;
+    int i, ret;
     int width_shift = 0;
     int new_pix_fmt;
     struct frame_header header;
@@ -319,7 +319,7 @@ static int truemotion1_decode_header(TrueMotion1Context *s)
     if (s->buf[0] < 0x10 || header.header_size >= s->size)
     {
         av_log(s->avctx, AV_LOG_ERROR, "invalid header size (%d)\n", s->buf[0]);
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
 
     /* unscramble the header bytes with a XOR operation */
@@ -343,7 +343,7 @@ static int truemotion1_decode_header(TrueMotion1Context *s)
         if (header.header_type > 3)
         {
             av_log(s->avctx, AV_LOG_ERROR, "invalid header type (%d)\n", header.header_type);
-            return -1;
+            return AVERROR_INVALIDDATA;
         } else if ((header.header_type == 2) || (header.header_type == 3)) {
             s->flags = header.flags;
             if (!(s->flags & FLAG_INTERFRAME))
@@ -371,7 +371,7 @@ static int truemotion1_decode_header(TrueMotion1Context *s)
 
     if (header.compression >= 17) {
         av_log(s->avctx, AV_LOG_ERROR, "invalid compression type (%d)\n", header.compression);
-        return -1;
+        return AVERROR_INVALIDDATA;
     }
 
     if ((header.deltaset != s->last_deltaset) ||
@@ -385,7 +385,7 @@ static int truemotion1_decode_header(TrueMotion1Context *s)
             sel_vector_table = tables[header.vectable - 1];
         else {
             av_log(s->avctx, AV_LOG_ERROR, "invalid vector table id (%d)\n", header.vectable);
-            return -1;
+            return AVERROR_INVALIDDATA;
         }
     }
 
@@ -396,8 +396,8 @@ static int truemotion1_decode_header(TrueMotion1Context *s)
         new_pix_fmt = AV_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 ((ret = av_image_check_size(s->w, s->h, 0, s->avctx)) < 0)
+        return ret;
 
     if (s->w != s->avctx->width || s->h != s->avctx->height ||
         new_pix_fmt != s->avctx->pix_fmt) {
@@ -860,21 +860,21 @@ static int truemotion1_decode_frame(AVCodecContext *avctx,
                                     AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
-    int buf_size = avpkt->size;
+    int ret, buf_size = avpkt->size;
     TrueMotion1Context *s = avctx->priv_data;
 
     s->buf = buf;
     s->size = buf_size;
 
-    if (truemotion1_decode_header(s) == -1)
-        return -1;
+    if ((ret = truemotion1_decode_header(s)) < 0)
+        return ret;
 
     s->frame.reference = 3;
     s->frame.buffer_hints = FF_BUFFER_HINTS_VALID |
         FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
-    if (avctx->reget_buffer(avctx, &s->frame) < 0) {
+    if ((ret = avctx->reget_buffer(avctx, &s->frame)) < 0) {
         av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n");
-        return -1;
+        return ret;
     }
 
     if (compression_types[s->compression].algorithm == ALGO_RGB24H) {