ZeroCodec: Flip output

[ffmpeg] / libavformat / cdg.c

diff --git a/libavformat/cdg.c b/libavformat/cdg.c
index b47a20e06a642aec56bc5bf099cb9ee01522a416..974880a63039d36352edcc33ca220a2dc217b6ee 100644 (file)
--- a/libavformat/cdg.c
+++ b/libavformat/cdg.c
@@ -20,23 +20,26 @@
  */
 
 #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 = avio_size(s->pb);
     if (ret > 0)
@@ -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 ff_cdg_demuxer = {
-    "cdg",
-    NULL_IF_CONFIG_SMALL("CD Graphics Format"),
-    0,
-    NULL,
-    read_header,
-    read_packet,
-    .extensions = "cdg"
+    .name           = "cdg",
+    .long_name      = NULL_IF_CONFIG_SMALL("CD Graphics"),
+    .read_header    = read_header,
+    .read_packet    = read_packet,
+    .extensions     = "cdg",
 };