* VC1 Test Bitstreams Format Demuxer
* Copyright (c) 2006, 2008 Konstantin Shishkov
*
- * 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
*/
/**
- * @file libavformat/vc1test.c
+ * @file
* VC1 test bitstream file demuxer
* by Konstantin Shishkov
* Format specified in SMPTE standard 421 Annex L
#include "libavutil/intreadwrite.h"
#include "avformat.h"
+#include "internal.h"
#define VC1_EXTRADATA_SIZE 4
if (p->buf[3] != 0xC5 || AV_RL32(&p->buf[4]) != 4 || AV_RL32(&p->buf[20]) != 0xC)
return 0;
- return AVPROBE_SCORE_MAX/2;
+ return AVPROBE_SCORE_EXTENSION;
}
-static int vc1t_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int vc1t_read_header(AVFormatContext *s)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
AVStream *st;
int frames;
uint32_t fps;
- frames = get_le24(pb);
- if(get_byte(pb) != 0xC5 || get_le32(pb) != 4)
- return -1;
+ frames = avio_rl24(pb);
+ if(avio_r8(pb) != 0xC5 || avio_rl32(pb) != 4)
+ return AVERROR_INVALIDDATA;
/* init video codec */
- st = av_new_stream(s, 0);
+ st = avformat_new_stream(s, NULL);
if (!st)
- return -1;
+ return AVERROR(ENOMEM);
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_WMV3;
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = AV_CODEC_ID_WMV3;
st->codec->extradata = av_malloc(VC1_EXTRADATA_SIZE);
+ if (!st->codec->extradata)
+ return AVERROR(ENOMEM);
st->codec->extradata_size = VC1_EXTRADATA_SIZE;
- get_buffer(pb, st->codec->extradata, VC1_EXTRADATA_SIZE);
- st->codec->height = get_le32(pb);
- st->codec->width = get_le32(pb);
- if(get_le32(pb) != 0xC)
- return -1;
- url_fskip(pb, 8);
- fps = get_le32(pb);
+ avio_read(pb, st->codec->extradata, VC1_EXTRADATA_SIZE);
+ st->codec->height = avio_rl32(pb);
+ st->codec->width = avio_rl32(pb);
+ if(avio_rl32(pb) != 0xC)
+ return AVERROR_INVALIDDATA;
+ avio_skip(pb, 8);
+ fps = avio_rl32(pb);
if(fps == 0xFFFFFFFF)
- av_set_pts_info(st, 32, 1, 1000);
+ avpriv_set_pts_info(st, 32, 1, 1000);
else{
if (!fps) {
av_log(s, AV_LOG_ERROR, "Zero FPS specified, defaulting to 1 FPS\n");
fps = 1;
}
- av_set_pts_info(st, 24, 1, fps);
+ avpriv_set_pts_info(st, 24, 1, fps);
st->duration = frames;
}
static int vc1t_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
- ByteIOContext *pb = s->pb;
+ AVIOContext *pb = s->pb;
int frame_size;
int keyframe = 0;
uint32_t pts;
- if(url_feof(pb))
+ if(pb->eof_reached)
return AVERROR(EIO);
- frame_size = get_le24(pb);
- if(get_byte(pb) & 0x80)
+ frame_size = avio_rl24(pb);
+ if(avio_r8(pb) & 0x80)
keyframe = 1;
- pts = get_le32(pb);
+ pts = avio_rl32(pb);
if(av_get_packet(pb, pkt, frame_size) < 0)
return AVERROR(EIO);
if(s->streams[0]->time_base.den == 1000)
pkt->pts = pts;
- pkt->flags |= keyframe ? PKT_FLAG_KEY : 0;
+ pkt->flags |= keyframe ? AV_PKT_FLAG_KEY : 0;
pkt->pos -= 8;
return pkt->size;
}
-AVInputFormat vc1t_demuxer = {
- "vc1test",
- NULL_IF_CONFIG_SMALL("VC-1 test bitstream format"),
- 0,
- vc1t_probe,
- vc1t_read_header,
- vc1t_read_packet,
- .flags = AVFMT_GENERIC_INDEX,
+AVInputFormat ff_vc1t_demuxer = {
+ .name = "vc1test",
+ .long_name = NULL_IF_CONFIG_SMALL("VC-1 test bitstream"),
+ .read_probe = vc1t_probe,
+ .read_header = vc1t_read_header,
+ .read_packet = vc1t_read_packet,
+ .flags = AVFMT_GENERIC_INDEX,
};