X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmjpegbdec.c;h=890befb52261770248ad5fe8cfb06c4bb3d56669;hb=30f7021aa0be2c978aefb73894b643c9bafbf51c;hp=a858707d54586df42bf1c02c0332af8049be006b;hpb=27e30c73d722ec13e59753dea91be00859c72bf2;p=ffmpeg

diff --git a/libavcodec/mjpegbdec.c b/libavcodec/mjpegbdec.c
index a858707d545..890befb5226 100644
--- 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 */
@@ -70,8 +72,7 @@ read_header:
 
     skip_bits(&hgb, 32); /* reserved zeros */
 
-    if (get_bits_long(&hgb, 32) != MKBETAG('m','j','p','g'))
-    {
+    if (get_bits_long(&hgb, 32) != MKBETAG('m','j','p','g')) {
         av_log(avctx, AV_LOG_WARNING, "not mjpeg-b (bad fourcc)\n");
         return AVERROR_INVALIDDATA;
     }
@@ -85,19 +86,17 @@ read_header:
 
     dqt_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "dqt is %d and size is %d\n");
     av_log(avctx, AV_LOG_DEBUG, "dqt offs: 0x%"PRIx32"\n", dqt_offs);
-    if (dqt_offs)
-    {
+    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");
     av_log(avctx, AV_LOG_DEBUG, "dht offs: 0x%"PRIx32"\n", dht_offs);
-    if (dht_offs)
-    {
+    if (dht_offs) {
         init_get_bits(&s->gb, buf_ptr+dht_offs, (buf_end - (buf_ptr+dht_offs))*8);
         s->start_code = DHT;
         ff_mjpeg_decode_dht(s);
@@ -105,37 +104,34 @@ read_header:
 
     sof_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sof is %d and size is %d\n");
     av_log(avctx, AV_LOG_DEBUG, "sof offs: 0x%"PRIx32"\n", sof_offs);
-    if (sof_offs)
-    {
+    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");
     av_log(avctx, AV_LOG_DEBUG, "sos offs: 0x%"PRIx32"\n", sos_offs);
     sod_offs = read_offs(avctx, &hgb, buf_end - buf_ptr, "sof is %d and size is %d\n");
     av_log(avctx, AV_LOG_DEBUG, "sod offs: 0x%"PRIx32"\n", sod_offs);
-    if (sos_offs)
-    {
+    if (sos_offs) {
         init_get_bits(&s->gb, buf_ptr + sos_offs,
                       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) {
         s->bottom_field ^= 1;
         /* if not bottom field, do not output image yet */
-        if (s->bottom_field != s->interlace_polarity && second_field_offs)
-        {
+        if (s->bottom_field != s->interlace_polarity && second_field_offs) {
             buf_ptr = buf + second_field_offs;
             goto read_header;
-            }
+        }
     }
 
     //XXX FIXME factorize, this looks very similar to the EOI code
@@ -168,5 +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,
 };