2 * VC-1 test bitstreams format muxer.
3 * Copyright (c) 2008 Konstantin Shishkov
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 typedef struct RCVContext {
27 static int vc1test_write_header(AVFormatContext *s)
29 AVCodecContext *avc = s->streams[0]->codec;
30 ByteIOContext *pb = s->pb;
32 if (avc->codec_id != CODEC_ID_WMV3) {
33 av_log(s, AV_LOG_ERROR, "Only WMV3 is accepted!\n");
36 put_le24(pb, 0); //frames count will be here
39 put_buffer(pb, avc->extradata, 4);
40 put_le32(pb, avc->height);
41 put_le32(pb, avc->width);
43 put_le24(pb, 0); // hrd_buffer
44 put_byte(pb, 0x80); // level|cbr|res1
45 put_le32(pb, 0); // hrd_rate
46 if (s->streams[0]->r_frame_rate.den && s->streams[0]->r_frame_rate.num == 1)
47 put_le32(pb, s->streams[0]->r_frame_rate.den);
49 put_le32(pb, 0xFFFFFFFF); //variable framerate
54 static int vc1test_write_packet(AVFormatContext *s, AVPacket *pkt)
56 RCVContext *ctx = s->priv_data;
57 ByteIOContext *pb = s->pb;
61 put_le32(pb, pkt->size | ((pkt->flags & AV_PKT_FLAG_KEY) ? 0x80000000 : 0));
62 put_le32(pb, pkt->pts);
63 put_buffer(pb, pkt->data, pkt->size);
70 static int vc1test_write_trailer(AVFormatContext *s)
72 RCVContext *ctx = s->priv_data;
73 ByteIOContext *pb = s->pb;
75 if (!url_is_streamed(s->pb)) {
76 url_fseek(pb, 0, SEEK_SET);
77 put_le24(pb, ctx->frames);
83 AVOutputFormat vc1t_muxer = {
85 NULL_IF_CONFIG_SMALL("VC-1 test bitstream"),
93 vc1test_write_trailer,