yading@11: /* yading@11: * VC-1 test bitstreams format muxer. yading@11: * Copyright (c) 2008 Konstantin Shishkov yading@11: * yading@11: * This file is part of FFmpeg. yading@11: * yading@11: * FFmpeg is free software; you can redistribute it and/or yading@11: * modify it under the terms of the GNU Lesser General Public yading@11: * License as published by the Free Software Foundation; either yading@11: * version 2.1 of the License, or (at your option) any later version. yading@11: * yading@11: * FFmpeg is distributed in the hope that it will be useful, yading@11: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@11: * Lesser General Public License for more details. yading@11: * yading@11: * You should have received a copy of the GNU Lesser General Public yading@11: * License along with FFmpeg; if not, write to the Free Software yading@11: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@11: */ yading@11: #include "avformat.h" yading@11: #include "internal.h" yading@11: yading@11: typedef struct RCVContext { yading@11: int frames; yading@11: } RCVContext; yading@11: yading@11: static int vc1test_write_header(AVFormatContext *s) yading@11: { yading@11: AVCodecContext *avc = s->streams[0]->codec; yading@11: AVIOContext *pb = s->pb; yading@11: yading@11: if (avc->codec_id != AV_CODEC_ID_WMV3) { yading@11: av_log(s, AV_LOG_ERROR, "Only WMV3 is accepted!\n"); yading@11: return -1; yading@11: } yading@11: avio_wl24(pb, 0); //frames count will be here yading@11: avio_w8(pb, 0xC5); yading@11: avio_wl32(pb, 4); yading@11: avio_write(pb, avc->extradata, 4); yading@11: avio_wl32(pb, avc->height); yading@11: avio_wl32(pb, avc->width); yading@11: avio_wl32(pb, 0xC); yading@11: avio_wl24(pb, 0); // hrd_buffer yading@11: avio_w8(pb, 0x80); // level|cbr|res1 yading@11: avio_wl32(pb, 0); // hrd_rate yading@11: if (s->streams[0]->avg_frame_rate.den && s->streams[0]->avg_frame_rate.num == 1) yading@11: avio_wl32(pb, s->streams[0]->avg_frame_rate.den); yading@11: else yading@11: avio_wl32(pb, 0xFFFFFFFF); //variable framerate yading@11: avpriv_set_pts_info(s->streams[0], 32, 1, 1000); yading@11: yading@11: return 0; yading@11: } yading@11: yading@11: static int vc1test_write_packet(AVFormatContext *s, AVPacket *pkt) yading@11: { yading@11: RCVContext *ctx = s->priv_data; yading@11: AVIOContext *pb = s->pb; yading@11: yading@11: if (!pkt->size) yading@11: return 0; yading@11: avio_wl32(pb, pkt->size | ((pkt->flags & AV_PKT_FLAG_KEY) ? 0x80000000 : 0)); yading@11: avio_wl32(pb, pkt->pts); yading@11: avio_write(pb, pkt->data, pkt->size); yading@11: ctx->frames++; yading@11: yading@11: return 0; yading@11: } yading@11: yading@11: static int vc1test_write_trailer(AVFormatContext *s) yading@11: { yading@11: RCVContext *ctx = s->priv_data; yading@11: AVIOContext *pb = s->pb; yading@11: yading@11: if (s->pb->seekable) { yading@11: avio_seek(pb, 0, SEEK_SET); yading@11: avio_wl24(pb, ctx->frames); yading@11: avio_flush(pb); yading@11: } yading@11: return 0; yading@11: } yading@11: yading@11: AVOutputFormat ff_vc1t_muxer = { yading@11: .name = "vc1test", yading@11: .long_name = NULL_IF_CONFIG_SMALL("VC-1 test bitstream"), yading@11: .extensions = "rcv", yading@11: .priv_data_size = sizeof(RCVContext), yading@11: .audio_codec = AV_CODEC_ID_NONE, yading@11: .video_codec = AV_CODEC_ID_WMV3, yading@11: .write_header = vc1test_write_header, yading@11: .write_packet = vc1test_write_packet, yading@11: .write_trailer = vc1test_write_trailer, yading@11: };