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support for the THP game format by Marco Gerards, mgerards xs4all nl

Browse Source 
Originally committed as revision 8587 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Diego Biurrun 2007-04-01 14:28:48 +00:00
parent b966340546
commit efb0c399ca
9 changed files with 195 additions and 0 deletions
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1
Changelog
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@ -75,6 +75,7 @@ version <next>
- DCA decoder
- DXA demuxer and decoder
- DNxHD decoder
- Gamecube movie (.THP) playback system
version 0.4.9-pre1:

2
doc/ffmpeg-doc.texi
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@ -901,6 +901,8 @@ library:
@item DXA @tab @tab X
@tab This format is used in non-Windows version of Feeble Files game and
different game cutscenes repacked for use with ScummVM.
@item THP @tab @tab X
@tab Used on the Nintendo GameCube (video only)
@end multitable
@code{X} means that encoding (resp. decoding) is supported.

1
libavcodec/allcodecs.c
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@ -130,6 +130,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(SVQ3, svq3);
REGISTER_ENCDEC (TARGA, targa);
REGISTER_DECODER(THEORA, theora);
REGISTER_DECODER(THP, thp);
REGISTER_DECODER(TIERTEXSEQVIDEO, tiertexseqvideo);
REGISTER_DECODER(TIFF, tiff);
REGISTER_DECODER(TRUEMOTION1, truemotion1);

2
libavcodec/avcodec.h
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@ -158,6 +158,7 @@ enum CodecID {
CODEC_ID_FFH264,
CODEC_ID_DXA,
CODEC_ID_DNXHD,
CODEC_ID_THP,
/* various pcm "codecs" */
CODEC_ID_PCM_S16LE= 0x10000,
@ -2329,6 +2330,7 @@ extern AVCodec svq1_decoder;
extern AVCodec svq3_decoder;
extern AVCodec targa_decoder;
extern AVCodec theora_decoder;
extern AVCodec thp_decoder;
extern AVCodec tiertexseqvideo_decoder;
extern AVCodec tiff_decoder;
extern AVCodec truemotion1_decoder;

16
libavcodec/mjpeg.c
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@ -2044,6 +2044,8 @@ static int mjpeg_decode_frame(AVCodecContext *avctx,
uint8_t x = *(src++);
*(dst++) = x;
if (avctx->codec_id != CODEC_ID_THP)
{
if (x == 0xff)
{
while(src<buf_end && x == 0xff)
@ -2054,6 +2056,7 @@ static int mjpeg_decode_frame(AVCodecContext *avctx,
else if (x)
break;
}
}
}
init_get_bits(&s->gb, s->buffer, (dst - s->buffer)*8);
@ -2583,6 +2586,19 @@ AVCodec mjpeg_decoder = {
NULL
};
AVCodec thp_decoder = {
"thp",
CODEC_TYPE_VIDEO,
CODEC_ID_THP,
sizeof(MJpegDecodeContext),
mjpeg_decode_init,
NULL,
mjpeg_decode_end,
mjpeg_decode_frame,
CODEC_CAP_DR1,
NULL
};
AVCodec mjpegb_decoder = {
"mjpegb",
CODEC_TYPE_VIDEO,

1
libavformat/Makefile
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@ -120,6 +120,7 @@ OBJS-$(CONFIG_SMACKER_DEMUXER) += smacker.o
OBJS-$(CONFIG_SOL_DEMUXER) += sol.o
OBJS-$(CONFIG_SWF_DEMUXER) += swf.o
OBJS-$(CONFIG_SWF_MUXER) += swf.o
OBJS-$(CONFIG_THP_DEMUXER) += thp.o
OBJS-$(CONFIG_TIERTEXSEQ_DEMUXER) += tiertexseq.o
OBJS-$(CONFIG_TTA_DEMUXER) += tta.o
OBJS-$(CONFIG_V4L2_DEMUXER) += v4l2.o

1
libavformat/allformats.c
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@ -142,6 +142,7 @@ void av_register_all(void)
REGISTER_MUXDEMUX(SWF, swf);
REGISTER_MUXER (TG2, tg2);
REGISTER_MUXER (TGP, tgp);
REGISTER_DEMUXER (THP, thp);
REGISTER_DEMUXER (TIERTEXSEQ, tiertexseq);
REGISTER_DEMUXER (TTA, tta);
REGISTER_DEMUXER (V4L2, v4l2);

1
libavformat/allformats.h
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@ -168,6 +168,7 @@ extern AVOutputFormat yuv4mpegpipe_muxer;
extern AVInputFormat yuv4mpegpipe_demuxer;
extern AVInputFormat tiertexseq_demuxer;
extern AVInputFormat x11_grab_device_demuxer;
extern AVInputFormat thp_demuxer;
/* raw.c */
int pcm_read_seek(AVFormatContext *s,

170
libavformat/thp.c Normal file
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@ -0,0 +1,170 @@
/*
* 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
};