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73 lines
2.5 KiB
73 lines
2.5 KiB
/* |
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* RAW video demuxer |
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* Copyright (c) 2001 Fabrice Bellard |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "avformat.h" |
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#include "rawdec.h" |
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static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt) |
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{ |
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int packet_size, ret, width, height; |
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AVStream *st = s->streams[0]; |
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width = st->codec->width; |
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height = st->codec->height; |
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packet_size = avpicture_get_size(st->codec->pix_fmt, width, height); |
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if (packet_size < 0) |
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return -1; |
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ret= av_get_packet(s->pb, pkt, packet_size); |
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pkt->pts= |
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pkt->dts= pkt->pos / packet_size; |
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pkt->stream_index = 0; |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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#define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x) |
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#define DEC AV_OPT_FLAG_DECODING_PARAM |
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static const AVOption rawvideo_options[] = { |
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{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, |
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{ "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC }, |
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{ "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC }, |
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{ NULL }, |
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}; |
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static const AVClass rawvideo_demuxer_class = { |
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.class_name = "rawvideo demuxer", |
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.item_name = av_default_item_name, |
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.option = rawvideo_options, |
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.version = LIBAVUTIL_VERSION_INT, |
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}; |
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AVInputFormat ff_rawvideo_demuxer = { |
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.name = "rawvideo", |
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.long_name = NULL_IF_CONFIG_SMALL("raw video"), |
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.priv_data_size = sizeof(FFRawVideoDemuxerContext), |
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.read_header = ff_raw_read_header, |
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.read_packet = rawvideo_read_packet, |
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.flags = AVFMT_GENERIC_INDEX, |
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.extensions = "yuv,cif,qcif,rgb", |
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.raw_codec_id = CODEC_ID_RAWVIDEO, |
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.priv_class = &rawvideo_demuxer_class, |
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};
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