*/
#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)
{
AVStream *vst;
int ret;
- vst = av_new_stream(s, 0);
+ vst = avformat_new_stream(s, NULL);
if (!vst)
return AVERROR(ENOMEM);
vst->codec->codec_id = 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)
{
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;
pkt->dts=pkt->pts= s->streams[0]->cur_dts;
+
+ if(ret>5 && (pkt->data[0]&0x3F) == 9 && (pkt->data[1]&0x3F)==1 && !(pkt->data[2+2+1] & 0x0F)){
+ pkt->flags = AV_PKT_FLAG_KEY;
+ }
return ret;
}
.long_name = NULL_IF_CONFIG_SMALL("CD Graphics Format"),
.read_header = read_header,
.read_packet = read_packet,
+ .flags= AVFMT_GENERIC_INDEX,
.extensions = "cdg"
};