avcodec: Constify AVCodecs

[ffmpeg] / libavcodec / mjpegbdec.c

diff --git a/libavcodec/mjpegbdec.c b/libavcodec/mjpegbdec.c
index 8583fcb4f9f53c435df428ebaae61fd3e18f4cfd..abc607176a5b282e5b243ab4739e9df89d5fa405 100644 (file)
--- a/libavcodec/mjpegbdec.c
+++ b/libavcodec/mjpegbdec.c
@@ -55,7 +55,9 @@ static int mjpegb_decode_frame(AVCodecContext *avctx,
 
     buf_ptr = buf;
     buf_end = buf + buf_size;
+    s->seen_sof = 0;
     s->got_picture = 0;
+    s->adobe_transform = -1;
 
 read_header:
     /* reset on every SOI */
@@ -87,9 +89,9 @@ read_header:
     if (dqt_offs) {
         init_get_bits(&s->gb, buf_ptr+dqt_offs, (buf_end - (buf_ptr+dqt_offs))*8);
         s->start_code = DQT;
-        if (ff_mjpeg_decode_dqt(s) < 0 &&
-            (avctx->err_recognition & AV_EF_EXPLODE))
-            return AVERROR_INVALIDDATA;
+        ret = ff_mjpeg_decode_dqt(s);
+        if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE))
+            return ret;
     }
 
     dht_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "dht is %d and size is %d\n");
@@ -105,8 +107,8 @@ read_header:
     if (sof_offs) {
         init_get_bits(&s->gb, buf_ptr+sof_offs, (buf_end - (buf_ptr+sof_offs))*8);
         s->start_code = SOF0;
-        if (ff_mjpeg_decode_sof(s) < 0)
-            return -1;
+        if ((ret = ff_mjpeg_decode_sof(s)) < 0)
+            return ret;
     }
 
     sos_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sos is %d and size is %d\n");
@@ -118,9 +120,9 @@ read_header:
                       8 * FFMIN(field_size, buf_end - buf_ptr - sos_offs));
         s->mjpb_skiptosod = (sod_offs - sos_offs - show_bits(&s->gb, 16));
         s->start_code = SOS;
-        if (ff_mjpeg_decode_sos(s, NULL, 0, NULL) < 0 &&
-            (avctx->err_recognition & AV_EF_EXPLODE))
-            return AVERROR_INVALIDDATA;
+        ret = ff_mjpeg_decode_sos(s, NULL, 0, NULL);
+        if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE))
+            return ret;
     }
 
     if (s->interlaced) {
@@ -151,7 +153,7 @@ read_header:
     return buf_size;
 }
 
-AVCodec ff_mjpegb_decoder = {
+const AVCodec ff_mjpegb_decoder = {
     .name           = "mjpegb",
     .long_name      = NULL_IF_CONFIG_SMALL("Apple MJPEG-B"),
     .type           = AVMEDIA_TYPE_VIDEO,
@@ -162,5 +164,5 @@ AVCodec ff_mjpegb_decoder = {
     .decode         = mjpegb_decode_frame,
     .capabilities   = AV_CODEC_CAP_DR1,
     .max_lowres     = 3,
-    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
+    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_INIT_CLEANUP,
 };