1/*
2 * RAW video demuxer
3 * Copyright (c) 2001 Fabrice Bellard
4 *
5 * This file is part of Libav.
6 *
7 * Libav 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.
11 *
12 * Libav 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.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22#include "avformat.h"
23#include "rawdec.h"
24
25static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
26{
27    int packet_size, ret, width, height;
28    AVStream *st = s->streams[0];
29
30    width = st->codec->width;
31    height = st->codec->height;
32
33    packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
34    if (packet_size < 0)
35        return -1;
36
37    ret= av_get_packet(s->pb, pkt, packet_size);
38    pkt->pts=
39    pkt->dts= pkt->pos / packet_size;
40
41    pkt->stream_index = 0;
42    if (ret < 0)
43        return ret;
44    return 0;
45}
46
47#define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x)
48#define DEC AV_OPT_FLAG_DECODING_PARAM
49static const AVOption rawvideo_options[] = {
50    { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
51    { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC },
52    { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC },
53    { NULL },
54};
55
56static const AVClass rawvideo_demuxer_class = {
57    .class_name = "rawvideo demuxer",
58    .item_name  = av_default_item_name,
59    .option     = rawvideo_options,
60    .version    = LIBAVUTIL_VERSION_INT,
61};
62
63AVInputFormat ff_rawvideo_demuxer = {
64    .name           = "rawvideo",
65    .long_name      = NULL_IF_CONFIG_SMALL("raw video format"),
66    .priv_data_size = sizeof(FFRawVideoDemuxerContext),
67    .read_header    = ff_raw_read_header,
68    .read_packet    = rawvideo_read_packet,
69    .flags= AVFMT_GENERIC_INDEX,
70    .extensions = "yuv,cif,qcif,rgb",
71    .value = CODEC_ID_RAWVIDEO,
72    .priv_class = &rawvideo_demuxer_class,
73};
74