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Diffstat (limited to 'contrib/ffmpeg/libavformat/thp.c')
| -rw-r--r-- | contrib/ffmpeg/libavformat/thp.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/contrib/ffmpeg/libavformat/thp.c b/contrib/ffmpeg/libavformat/thp.c deleted file mode 100644 index d0d80428c..000000000 --- a/contrib/ffmpeg/libavformat/thp.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * THP Demuxer - * Copyright (c) 2007 Marco Gerards. - * - * 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 "avformat.h" -#include "allformats.h" - -typedef struct ThpDemuxContext { - int version; - int first_frame; - int first_framesz; - int last_frame; - int compoff; - int framecnt; - AVRational fps; - int frame; - int next_frame; - int next_framesz; - int video_stream_index; - int compcount; - unsigned char components[16]; - AVStream* vst; - int has_audio; -} ThpDemuxContext; - - -static int thp_probe(AVProbeData *p) -{ - /* check file header */ - if (p->buf_size < 4) - return 0; - - if (AV_RL32(p->buf) == MKTAG('T', 'H', 'P', '\0')) - return AVPROBE_SCORE_MAX; - else - return 0; -} - -static int thp_read_header(AVFormatContext *s, - AVFormatParameters *ap) -{ - ThpDemuxContext *thp = s->priv_data; - AVStream *st; - ByteIOContext *pb = &s->pb; - int i; - - /* Read the file header. */ - - get_be32(pb); /* Skip Magic. */ - thp->version = get_be32(pb); - - get_be32(pb); /* Max buf size. */ - get_be32(pb); /* Max samples. */ - - thp->fps = av_d2q(av_int2flt(get_be32(pb)), INT_MAX); - thp->framecnt = get_be32(pb); - thp->first_framesz = get_be32(pb); - get_be32(pb); /* Data size. */ - - thp->compoff = get_be32(pb); - get_be32(pb); /* offsetDataOffset. */ - thp->first_frame = get_be32(pb); - thp->last_frame = get_be32(pb); - - thp->next_framesz = thp->first_framesz; - thp->next_frame = thp->first_frame; - - /* Read the component structure. */ - url_fseek (pb, thp->compoff, SEEK_SET); - thp->compcount = get_be32(pb); - - /* Read the list of component types. */ - get_buffer(pb, thp->components, 16); - - for (i = 0; i < thp->compcount; i++) { - if (thp->components[i] == 0) { - if (thp->vst != 0) - break; - - /* Video component. */ - st = av_new_stream(s, 0); - if (!st) - return AVERROR_NOMEM; - - /* The denominator and numerator are switched because 1/fps - is required. */ - av_set_pts_info(st, 64, thp->fps.den, thp->fps.num); - st->codec->codec_type = CODEC_TYPE_VIDEO; - st->codec->codec_id = CODEC_ID_THP; - st->codec->codec_tag = 0; /* no fourcc */ - st->codec->width = get_be32(pb); - st->codec->height = get_be32(pb); - st->codec->sample_rate = av_q2d(thp->fps); - thp->vst = st; - thp->video_stream_index = st->index; - - if (thp->version == 0x11000) - get_be32(pb); /* Unknown. */ - } - else if (thp->components[i] == 1) { - /* XXX: Required for audio playback. */ - thp->has_audio = 1; - } - } - - return 0; -} - -static int thp_read_packet(AVFormatContext *s, - AVPacket *pkt) -{ - ThpDemuxContext *thp = s->priv_data; - ByteIOContext *pb = &s->pb; - int size; - int ret; - - /* Terminate when last frame is reached. */ - if (thp->frame >= thp->framecnt) - return AVERROR_IO; - - url_fseek(pb, thp->next_frame, SEEK_SET); - - /* Locate the next frame and read out its size. */ - thp->next_frame += thp->next_framesz; - thp->next_framesz = get_be32(pb); - - get_be32(pb); /* Previous total size. */ - size = get_be32(pb); /* Total size of this frame. */ - - if (thp->has_audio) - get_be32(pb); /* Audio size. */ - - ret = av_get_packet(pb, pkt, size); - if (ret != size) { - av_free_packet(pkt); - return AVERROR_IO; - } - - pkt->stream_index = thp->video_stream_index; - thp->frame++; - - return 0; -} - -AVInputFormat thp_demuxer = { - "thp", - "THP", - sizeof(ThpDemuxContext), - thp_probe, - thp_read_header, - thp_read_packet -}; |