Merge commit '488f87be873506abb01d67708a67c10a4dd29283'

* commit '488f87be873506abb01d67708a67c10a4dd29283':
  roqvideodec: check dimensions validity
  vqavideo: check chunk sizes before reading chunks
  qdm2: check array index before use, fix out of array accesses

Conflicts:
	libavcodec/qdm2.c
	libavcodec/roqvideodec.c
	libavcodec/vqavideo.c

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

libavcodec/qdm2.c

@@ -1257,7 +1257,7 @@ static void qdm2_decode_super_block (QDM2Context *q)
     for (i = 0; packet_bytes > 0; i++) {
         int j;
 
-        if (i>=FF_ARRAY_ELEMS(q->sub_packet_list_A)) {
+        if (i >= FF_ARRAY_ELEMS(q->sub_packet_list_A)) {
             SAMPLES_NEEDED_2("too many packet bytes");
             return;
         }

libavcodec/roqvideodec.c

@@ -171,9 +171,10 @@ static av_cold int roq_decode_init(AVCodecContext *avctx)
 
     s->avctx = avctx;
 
-    if (avctx->width%16 || avctx->height%16) {
-         av_log_ask_for_sample(avctx, "dimensions not being a multiple of 16 are unsupported\n");
-         return AVERROR_PATCHWELCOME;
+    if (avctx->width % 16 || avctx->height % 16) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Dimensions must be a multiple of 16\n");
+        return AVERROR_PATCHWELCOME;
     }
 
     s->width = avctx->width;

libavcodec/vqavideo.c

@@ -538,7 +538,8 @@ static int vqa_decode_chunk(VqaContext *s)
         chunk_size = bytestream2_get_be32(&s->gb);
 
         if (chunk_size > MAX_CODEBOOK_SIZE - s->next_codebook_buffer_index) {
-            av_log(s->avctx, AV_LOG_ERROR, "cbp0 chunk too large (0x%X bytes)\n", chunk_size);
+            av_log(s->avctx, AV_LOG_ERROR, "cbp0 chunk too large (%u bytes)\n",
+                   chunk_size);
             return AVERROR_INVALIDDATA;
         }
 
@@ -566,7 +567,8 @@ static int vqa_decode_chunk(VqaContext *s)
         chunk_size = bytestream2_get_be32(&s->gb);
 
         if (chunk_size > MAX_CODEBOOK_SIZE - s->next_codebook_buffer_index) {
-            av_log(s->avctx, AV_LOG_ERROR, "cbpz chunk too large (0x%X bytes)\n", chunk_size);
+            av_log(s->avctx, AV_LOG_ERROR, "cbpz chunk too large (%u bytes)\n",
+                   chunk_size);
             return AVERROR_INVALIDDATA;
         }