mjpeg: propagate decode errors from ff_mjpeg_decode_sos and ff_mjpeg_decode_dqt

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

libavcodec/mjpegbdec.c

@@ -81,7 +81,9 @@ read_header:
     {
         init_get_bits(&s->gb, buf_ptr+dqt_offs, (buf_end - (buf_ptr+dqt_offs))*8);
         s->start_code = DQT;
-        ff_mjpeg_decode_dqt(s);
+        if (ff_mjpeg_decode_dqt(s) < 0 &&
+            avctx->error_recognition >= FF_ER_EXPLODE)
+          return AVERROR_INVALIDDATA;
     }
 
     dht_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "dht is %d and size is %d\n");
@@ -113,7 +115,9 @@ read_header:
         init_get_bits(&s->gb, buf_ptr+sos_offs, field_size*8);
         s->mjpb_skiptosod = (sod_offs - sos_offs - show_bits(&s->gb, 16));
         s->start_code = SOS;
-        ff_mjpeg_decode_sos(s, NULL, NULL);
+        if (ff_mjpeg_decode_sos(s, NULL, NULL) < 0 &&
+            avctx->error_recognition >= FF_ER_EXPLODE)
+          return AVERROR_INVALIDDATA;
     }
 
     if (s->interlaced) {

libavcodec/mjpegdec.c

@@ -1525,7 +1525,9 @@ eoi_parser:
                         av_log(avctx, AV_LOG_WARNING, "Can not process SOS before SOF, skipping\n");
                         break;
                     }
-                    ff_mjpeg_decode_sos(s, NULL, NULL);
+                    if (ff_mjpeg_decode_sos(s, NULL, NULL) < 0 &&
+                        avctx->error_recognition >= FF_ER_EXPLODE)
+                      return AVERROR_INVALIDDATA;
                     /* buggy avid puts EOI every 10-20th frame */
                     /* if restart period is over process EOI */
                     if ((s->buggy_avid && !s->interlaced) || s->restart_interval)

libavcodec/mxpegdec.c

@@ -275,9 +275,13 @@ static int mxpeg_decode_frame(AVCodecContext *avctx,
                         return AVERROR(ENOMEM);
                     }
 
-                    ff_mjpeg_decode_sos(jpg, s->mxm_bitmask, reference_ptr);
+                    ret = ff_mjpeg_decode_sos(jpg, s->mxm_bitmask, reference_ptr);
+                    if (ret < 0 && avctx->error_recognition >= FF_ER_EXPLODE)
+                        return ret;
                 } else {
-                    ff_mjpeg_decode_sos(jpg, NULL, NULL);
+                    ret = ff_mjpeg_decode_sos(jpg, NULL, NULL);
+                    if (ret < 0 && avctx->error_recognition >= FF_ER_EXPLODE)
+                        return ret;
                 }
 
                 break;