diff options
Diffstat (limited to 'ffmpeg1/libavformat/rawvideodec.c')
| -rw-r--r-- | ffmpeg1/libavformat/rawvideodec.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/ffmpeg1/libavformat/rawvideodec.c b/ffmpeg1/libavformat/rawvideodec.c deleted file mode 100644 index 8460781..0000000 --- a/ffmpeg1/libavformat/rawvideodec.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * 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 "libavutil/parseutils.h" -#include "libavutil/pixdesc.h" -#include "libavutil/opt.h" -#include "internal.h" -#include "avformat.h" - -typedef struct RawVideoDemuxerContext { - const AVClass *class; /**< Class for private options. */ - char *video_size; /**< String describing video size, set by a private option. */ - char *pixel_format; /**< Set by a private option. */ - char *framerate; /**< String describing framerate, set by a private option. */ -} RawVideoDemuxerContext; - - -static int rawvideo_read_header(AVFormatContext *ctx) -{ - RawVideoDemuxerContext *s = ctx->priv_data; - int width = 0, height = 0, ret = 0; - enum AVPixelFormat pix_fmt; - AVRational framerate; - AVStream *st; - - st = avformat_new_stream(ctx, NULL); - if (!st) - return AVERROR(ENOMEM); - - st->codec->codec_type = AVMEDIA_TYPE_VIDEO; - - st->codec->codec_id = ctx->iformat->raw_codec_id; - - if (s->video_size && - (ret = av_parse_video_size(&width, &height, s->video_size)) < 0) { - av_log(ctx, AV_LOG_ERROR, "Couldn't parse video size.\n"); - return ret; - } - - if ((pix_fmt = av_get_pix_fmt(s->pixel_format)) == AV_PIX_FMT_NONE) { - av_log(ctx, AV_LOG_ERROR, "No such pixel format: %s.\n", - s->pixel_format); - return AVERROR(EINVAL); - } - - if ((ret = av_parse_video_rate(&framerate, s->framerate)) < 0) { - av_log(ctx, AV_LOG_ERROR, "Could not parse framerate: %s.\n", - s->framerate); - return ret; - } - - avpriv_set_pts_info(st, 64, framerate.den, framerate.num); - - st->codec->width = width; - st->codec->height = height; - st->codec->pix_fmt = pix_fmt; - st->codec->bit_rate = av_rescale_q(avpicture_get_size(st->codec->pix_fmt, width, height), - (AVRational){8,1}, st->time_base); - - return 0; -} - - -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(RawVideoDemuxerContext, x) -#define DEC AV_OPT_FLAG_DECODING_PARAM -static const AVOption rawvideo_options[] = { - { "video_size", "set frame size", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, - { "pixel_format", "set pixel format", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "yuv420p"}, 0, 0, DEC }, - { "framerate", "set frame rate", 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"), - .priv_data_size = sizeof(RawVideoDemuxerContext), - .read_header = rawvideo_read_header, - .read_packet = rawvideo_read_packet, - .flags = AVFMT_GENERIC_INDEX, - .extensions = "yuv,cif,qcif,rgb", - .raw_codec_id = AV_CODEC_ID_RAWVIDEO, - .priv_class = &rawvideo_demuxer_class, -}; |