yuv4mpeg: Correctly round chroma up for odd luma sizes

[ffmpeg] / libavformat / cdg.c

diff --git a/libavformat/cdg.c b/libavformat/cdg.c
index 2f4fb2771d9d52baaddad7771a97e634373cb197..974880a63039d36352edcc33ca220a2dc217b6ee 100644 (file)
--- a/libavformat/cdg.c
+++ b/libavformat/cdg.c
@@ -2,43 +2,46 @@
  * CD Graphics Demuxer
  * Copyright (c) 2009 Michael Tison
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "avformat.h"
+#include "internal.h"
 
 #define CDG_PACKET_SIZE    24
+#define CDG_COMMAND        0x09
+#define CDG_MASK           0x3F
 
-static int read_header(AVFormatContext *s, AVFormatParameters *ap)
+static int read_header(AVFormatContext *s)
 {
     AVStream *vst;
     int ret;
 
-    vst = av_new_stream(s, 0);
+    vst = avformat_new_stream(s, NULL);
     if (!vst)
         return AVERROR(ENOMEM);
 
     vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-    vst->codec->codec_id   = CODEC_ID_CDGRAPHICS;
+    vst->codec->codec_id   = AV_CODEC_ID_CDGRAPHICS;
 
     /// 75 sectors/sec * 4 packets/sector = 300 packets/sec
-    av_set_pts_info(vst, 32, 1, 300);
+    avpriv_set_pts_info(vst, 32, 1, 300);
 
-    ret = url_fsize(s->pb);
+    ret = avio_size(s->pb);
     if (ret > 0)
         vst->duration = (ret * vst->time_base.den) / (CDG_PACKET_SIZE * 300);
 
@@ -49,18 +52,21 @@ static int read_packet(AVFormatContext *s, AVPacket *pkt)
 {
     int ret;
 
-    ret = av_get_packet(s->pb, pkt, CDG_PACKET_SIZE);
+    while (1) {
+        ret = av_get_packet(s->pb, pkt, CDG_PACKET_SIZE);
+        if (ret < 1 || (pkt->data[0] & CDG_MASK) == CDG_COMMAND)
+            break;
+        av_free_packet(pkt);
+    }
 
     pkt->stream_index = 0;
     return ret;
 }
 
-AVInputFormat cdg_demuxer = {
-    "cdg",
-    NULL_IF_CONFIG_SMALL("CD Graphics Format"),
-    0,
-    NULL,
-    read_header,
-    read_packet,
-    .extensions = "cdg"
+AVInputFormat ff_cdg_demuxer = {
+    .name           = "cdg",
+    .long_name      = NULL_IF_CONFIG_SMALL("CD Graphics"),
+    .read_header    = read_header,
+    .read_packet    = read_packet,
+    .extensions     = "cdg",
 };