repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * VC-1 test bitstreams format muxer. | |
| 3 | * Copyright (c) 2008 Konstantin Shishkov | |
| 4 | * | |
| 5 | * This file is part of FFmpeg. | |
| 6 | * | |
| 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. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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 | |
| 20 | */ | |
| 21 | #include "avformat.h" | |
| 22 | #include "internal.h" | |
| 23 | ||
| 24 | typedef struct RCVContext { | |
| 25 | int frames; | |
| 26 | } RCVContext; | |
| 27 | ||
| 28 | static int vc1test_write_header(AVFormatContext *s) | |
| 29 | { | |
| 30 | AVCodecContext *avc = s->streams[0]->codec; | |
| 31 | AVIOContext *pb = s->pb; | |
| 32 | ||
| 33 | if (avc->codec_id != AV_CODEC_ID_WMV3) { | |
| 34 | av_log(s, AV_LOG_ERROR, "Only WMV3 is accepted!\n"); | |
| 35 | return -1; | |
| 36 | } | |
| 37 | avio_wl24(pb, 0); //frames count will be here | |
| 38 | avio_w8(pb, 0xC5); | |
| 39 | avio_wl32(pb, 4); | |
| 40 | avio_write(pb, avc->extradata, 4); | |
| 41 | avio_wl32(pb, avc->height); | |
| 42 | avio_wl32(pb, avc->width); | |
| 43 | avio_wl32(pb, 0xC); | |
| 44 | avio_wl24(pb, 0); // hrd_buffer | |
| 45 | avio_w8(pb, 0x80); // level|cbr|res1 | |
| 46 | avio_wl32(pb, 0); // hrd_rate | |
| 47 | if (s->streams[0]->avg_frame_rate.den && s->streams[0]->avg_frame_rate.num == 1) | |
| 48 | avio_wl32(pb, s->streams[0]->avg_frame_rate.den); | |
| 49 | else | |
| 50 | avio_wl32(pb, 0xFFFFFFFF); //variable framerate | |
| 51 | avpriv_set_pts_info(s->streams[0], 32, 1, 1000); | |
| 52 | ||
| 53 | return 0; | |
| 54 | } | |
| 55 | ||
| 56 | static int vc1test_write_packet(AVFormatContext *s, AVPacket *pkt) | |
| 57 | { | |
| 58 | RCVContext *ctx = s->priv_data; | |
| 59 | AVIOContext *pb = s->pb; | |
| 60 | ||
| 61 | if (!pkt->size) | |
| 62 | return 0; | |
| 63 | avio_wl32(pb, pkt->size | ((pkt->flags & AV_PKT_FLAG_KEY) ? 0x80000000 : 0)); | |
| 64 | avio_wl32(pb, pkt->pts); | |
| 65 | avio_write(pb, pkt->data, pkt->size); | |
| 66 | ctx->frames++; | |
| 67 | ||
| 68 | return 0; | |
| 69 | } | |
| 70 | ||
| 71 | static int vc1test_write_trailer(AVFormatContext *s) | |
| 72 | { | |
| 73 | RCVContext *ctx = s->priv_data; | |
| 74 | AVIOContext *pb = s->pb; | |
| 75 | ||
| 76 | if (s->pb->seekable) { | |
| 77 | avio_seek(pb, 0, SEEK_SET); | |
| 78 | avio_wl24(pb, ctx->frames); | |
| 79 | avio_flush(pb); | |
| 80 | } | |
| 81 | return 0; | |
| 82 | } | |
| 83 | ||
| 84 | AVOutputFormat ff_vc1t_muxer = { | |
| 85 | .name = "vc1test", | |
| 86 | .long_name = NULL_IF_CONFIG_SMALL("VC-1 test bitstream"), | |
| 87 | .extensions = "rcv", | |
| 88 | .priv_data_size = sizeof(RCVContext), | |
| 89 | .audio_codec = AV_CODEC_ID_NONE, | |
| 90 | .video_codec = AV_CODEC_ID_WMV3, | |
| 91 | .write_header = vc1test_write_header, | |
| 92 | .write_packet = vc1test_write_packet, | |
| 93 | .write_trailer = vc1test_write_trailer, | |
| 94 | }; |