| /* |
| * RAW video demuxer |
| * Copyright (c) 2001 Fabrice Bellard |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg 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, |
| * 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 |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "avformat.h" |
| #include "rawdec.h" |
| |
| static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt) |
| { |
| int packet_size, ret, width, height; |
| AVStream *st = s->streams[0]; |
| |
| width = st->codec->width; |
| height = st->codec->height; |
| |
| packet_size = avpicture_get_size(st->codec->pix_fmt, width, height); |
| if (packet_size < 0) |
| return -1; |
| |
| ret= av_get_packet(s->pb, pkt, packet_size); |
| pkt->pts= |
| pkt->dts= pkt->pos / packet_size; |
| |
| pkt->stream_index = 0; |
| if (ret < 0) |
| return ret; |
| return 0; |
| } |
| |
| #define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x) |
| #define DEC AV_OPT_FLAG_DECODING_PARAM |
| static const AVOption rawvideo_options[] = { |
| { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, |
| { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC }, |
| { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC }, |
| { NULL }, |
| }; |
| |
| static const AVClass rawvideo_demuxer_class = { |
| .class_name = "rawvideo demuxer", |
| .item_name = av_default_item_name, |
| .option = rawvideo_options, |
| .version = LIBAVUTIL_VERSION_INT, |
| }; |
| |
| AVInputFormat ff_rawvideo_demuxer = { |
| .name = "rawvideo", |
| .long_name = NULL_IF_CONFIG_SMALL("raw video format"), |
| .priv_data_size = sizeof(FFRawVideoDemuxerContext), |
| .read_header = ff_raw_read_header, |
| .read_packet = rawvideo_read_packet, |
| .flags= AVFMT_GENERIC_INDEX, |
| .extensions = "yuv,cif,qcif,rgb", |
| .value = CODEC_ID_RAWVIDEO, |
| .priv_class = &rawvideo_demuxer_class, |
| }; |