repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2010 Reimar Döffinger | |
| 3 | * | |
| 4 | * This file is part of FFmpeg. | |
| 5 | * | |
| 6 | * FFmpeg is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2.1 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * FFmpeg is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with FFmpeg; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | #include "avformat.h" | |
| 21 | #include "libavutil/intreadwrite.h" | |
| 22 | ||
| 23 | static int ivf_write_header(AVFormatContext *s) | |
| 24 | { | |
| 25 | AVCodecContext *ctx; | |
| 26 | AVIOContext *pb = s->pb; | |
| 27 | ||
| 28 | if (s->nb_streams != 1) { | |
| 29 | av_log(s, AV_LOG_ERROR, "Format supports only exactly one video stream\n"); | |
| 30 | return AVERROR(EINVAL); | |
| 31 | } | |
| 32 | ctx = s->streams[0]->codec; | |
| 33 | if (ctx->codec_type != AVMEDIA_TYPE_VIDEO || | |
| 34 | !(ctx->codec_id == AV_CODEC_ID_VP8 || ctx->codec_id == AV_CODEC_ID_VP9)) { | |
| 35 | av_log(s, AV_LOG_ERROR, "Currently only VP8 and VP9 are supported!\n"); | |
| 36 | return AVERROR(EINVAL); | |
| 37 | } | |
| 38 | avio_write(pb, "DKIF", 4); | |
| 39 | avio_wl16(pb, 0); // version | |
| 40 | avio_wl16(pb, 32); // header length | |
| 41 | avio_wl32(pb, ctx->codec_tag ? ctx->codec_tag : AV_RL32("VP80")); | |
| 42 | avio_wl16(pb, ctx->width); | |
| 43 | avio_wl16(pb, ctx->height); | |
| 44 | avio_wl32(pb, s->streams[0]->time_base.den); | |
| 45 | avio_wl32(pb, s->streams[0]->time_base.num); | |
| 46 | avio_wl64(pb, s->streams[0]->duration); // TODO: duration or number of frames?!? | |
| 47 | ||
| 48 | return 0; | |
| 49 | } | |
| 50 | ||
| 51 | static int ivf_write_packet(AVFormatContext *s, AVPacket *pkt) | |
| 52 | { | |
| 53 | AVIOContext *pb = s->pb; | |
| 54 | avio_wl32(pb, pkt->size); | |
| 55 | avio_wl64(pb, pkt->pts); | |
| 56 | avio_write(pb, pkt->data, pkt->size); | |
| 57 | ||
| 58 | return 0; | |
| 59 | } | |
| 60 | ||
| 61 | AVOutputFormat ff_ivf_muxer = { | |
| 62 | .name = "ivf", | |
| 63 | .long_name = NULL_IF_CONFIG_SMALL("On2 IVF"), | |
| 64 | .extensions = "ivf", | |
| 65 | .audio_codec = AV_CODEC_ID_NONE, | |
| 66 | .video_codec = AV_CODEC_ID_VP8, | |
| 67 | .write_header = ivf_write_header, | |
| 68 | .write_packet = ivf_write_packet, | |
| 69 | }; |