diff options
Diffstat (limited to 'ffmpeg/libavformat/frmdec.c')
| -rw-r--r-- | ffmpeg/libavformat/frmdec.c | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/ffmpeg/libavformat/frmdec.c b/ffmpeg/libavformat/frmdec.c deleted file mode 100644 index a6f19af..0000000 --- a/ffmpeg/libavformat/frmdec.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - * Megalux Frame demuxer - * Copyright (c) 2010 Peter Ross <pross@xvid.org> - * - * 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 - */ - -/** - * @file - * Megalux Frame demuxer - */ - -#include "libavcodec/raw.h" -#include "libavutil/intreadwrite.h" -#include "avformat.h" - -static const PixelFormatTag frm_pix_fmt_tags[] = { - { AV_PIX_FMT_RGB555, 1 }, - { AV_PIX_FMT_RGB0, 2 }, - { AV_PIX_FMT_RGB24, 3 }, - { AV_PIX_FMT_BGR0, 4 }, - { AV_PIX_FMT_BGRA, 5 }, - { AV_PIX_FMT_NONE, 0 }, -}; - -typedef struct { - int count; -} FrmContext; - -static int frm_read_probe(AVProbeData *p) -{ - if (p->buf_size > 8 && - p->buf[0] == 'F' && p->buf[1] == 'R' && p->buf[2] == 'M' && - AV_RL16(&p->buf[4]) && AV_RL16(&p->buf[6])) - return AVPROBE_SCORE_MAX / 4; - return 0; -} - -static int frm_read_header(AVFormatContext *avctx) -{ - AVIOContext *pb = avctx->pb; - AVStream *st = avformat_new_stream(avctx, 0); - if (!st) - return AVERROR(ENOMEM); - - st->codec->codec_type = AVMEDIA_TYPE_VIDEO; - st->codec->codec_id = AV_CODEC_ID_RAWVIDEO; - avio_skip(pb, 3); - - st->codec->pix_fmt = avpriv_find_pix_fmt(frm_pix_fmt_tags, avio_r8(pb)); - if (!st->codec->pix_fmt) - return AVERROR_INVALIDDATA; - - st->codec->codec_tag = 0; - st->codec->width = avio_rl16(pb); - st->codec->height = avio_rl16(pb); - return 0; -} - -static int frm_read_packet(AVFormatContext *avctx, AVPacket *pkt) -{ - FrmContext *s = avctx->priv_data; - AVCodecContext *stc = avctx->streams[0]->codec; - int packet_size, ret; - - if (s->count) - return AVERROR_EOF; - - packet_size = avpicture_get_size(stc->pix_fmt, stc->width, stc->height); - if (packet_size < 0) - return AVERROR_INVALIDDATA; - - ret = av_get_packet(avctx->pb, pkt, packet_size); - if (ret < 0) - return ret; - - if (stc->pix_fmt == AV_PIX_FMT_BGRA) { - int i; - for (i = 3; i + 1 <= pkt->size; i += 4) - pkt->data[i] = 0xFF - pkt->data[i]; - } - - pkt->stream_index = 0; - s->count++; - - return 0; -} - -AVInputFormat ff_frm_demuxer = { - .name = "frm", - .priv_data_size = sizeof(FrmContext), - .long_name = NULL_IF_CONFIG_SMALL("Megalux Frame"), - .read_probe = frm_read_probe, - .read_header = frm_read_header, - .read_packet = frm_read_packet, -}; |
