3 * Copyright (c) 2001 Fabrice Bellard
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
25 static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
27 int packet_size, ret, width, height;
28 AVStream *st = s->streams[0];
30 width = st->codec->width;
31 height = st->codec->height;
33 packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
37 ret= av_get_packet(s->pb, pkt, packet_size);
39 pkt->dts= pkt->pos / packet_size;
41 pkt->stream_index = 0;
47 #define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x)
48 #define DEC AV_OPT_FLAG_DECODING_PARAM
49 static 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 },
56 static 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,
63 AVInputFormat ff_rawvideo_demuxer = {
65 .long_name = NULL_IF_CONFIG_SMALL("raw video"),
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 .raw_codec_id = CODEC_ID_RAWVIDEO,
72 .priv_class = &rawvideo_demuxer_class,