diff options
| -rw-r--r-- | libavcodec/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/allcodecs.c | 1 | ||||
| -rw-r--r-- | libavcodec/avcodec.h | 2 | ||||
| -rw-r--r-- | libavcodec/txd.c | 165 |
4 files changed, 169 insertions, 0 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 8cc3a01db8..acc8369e50 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -157,6 +157,7 @@ OBJS-$(CONFIG_TRUEMOTION2_DECODER) += truemotion2.o OBJS-$(CONFIG_TRUESPEECH_DECODER) += truespeech.o OBJS-$(CONFIG_TSCC_DECODER) += tscc.o OBJS-$(CONFIG_TTA_DECODER) += tta.o +OBJS-$(CONFIG_TXD_DECODER) += txd.o s3tc.o OBJS-$(CONFIG_ULTI_DECODER) += ulti.o OBJS-$(CONFIG_VC1_DECODER) += vc1.o vc1data.o vc1dsp.o OBJS-$(CONFIG_VCR1_DECODER) += vcr1.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index e593a6e8f1..9f639727c3 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -139,6 +139,7 @@ void avcodec_register_all(void) REGISTER_DECODER(TRUEMOTION1, truemotion1); REGISTER_DECODER(TRUEMOTION2, truemotion2); REGISTER_DECODER(TSCC, tscc); + REGISTER_DECODER(TXD, txd); REGISTER_DECODER(ULTI, ulti); REGISTER_DECODER(VC1, vc1); REGISTER_DECODER(VCR1, vcr1); diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 29b15c7213..8f9838c0b7 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -163,6 +163,7 @@ enum CodecID { CODEC_ID_C93, CODEC_ID_BETHSOFTVID, CODEC_ID_PTX, + CODEC_ID_TXD, /* various PCM "codecs" */ CODEC_ID_PCM_S16LE= 0x10000, @@ -2346,6 +2347,7 @@ extern AVCodec truemotion2_decoder; extern AVCodec truespeech_decoder; extern AVCodec tscc_decoder; extern AVCodec tta_decoder; +extern AVCodec txd_decoder; extern AVCodec ulti_decoder; extern AVCodec vc1_decoder; extern AVCodec vcr1_decoder; diff --git a/libavcodec/txd.c b/libavcodec/txd.c new file mode 100644 index 0000000000..454e412955 --- /dev/null +++ b/libavcodec/txd.c @@ -0,0 +1,165 @@ +/* + * Renderware TeXture Dictionary (.txd) image decoder + * Copyright (c) 2007 Ivo van Poorten + * + * 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 + * + * See also: http://wiki.multimedia.cx/index.php?title=TXD + */ + +#include "avcodec.h" +#include "s3tc.h" + +typedef struct TXDContext { + AVFrame picture; +} TXDContext; + +static int txd_init(AVCodecContext *avctx) { + TXDContext *s = avctx->priv_data; + + avcodec_get_frame_defaults(&s->picture); + avctx->coded_frame = &s->picture; + s->picture.data[0] = NULL; + + return 0; +} + +static int txd_decode_frame(AVCodecContext *avctx, void *data, int *data_size, + uint8_t *buf, int buf_size) { + TXDContext * const s = avctx->priv_data; + AVFrame *picture = data; + AVFrame * const p = &s->picture; + unsigned int version, w, h, d3d_format, depth, stride, mipmap_count, flags; + unsigned int y, v; + uint8_t *ptr, *cur = buf; + uint32_t *palette = (uint32_t *)(cur + 88), *pal; + + version = AV_RL32(cur); + d3d_format = AV_RL32(cur+76); + w = AV_RL16(cur+80); + h = AV_RL16(cur+82); + depth = AV_RL8 (cur+84); + mipmap_count = AV_RL8 (cur+85); + flags = AV_RL8 (cur+87); + cur += 92; + + if (version < 8 || version > 9) { + av_log(avctx, AV_LOG_ERROR, "texture data version %i is unsupported\n", + version); + return -1; + } + + if (depth == 8) { + avctx->pix_fmt = PIX_FMT_PAL8; + cur += 1024; + } else if (depth == 16 || depth == 32) + avctx->pix_fmt = PIX_FMT_RGB32; + else { + av_log(avctx, AV_LOG_ERROR, "depth of %i is unsupported\n", depth); + return -1; + } + + if (p->data[0]) + avctx->release_buffer(avctx, p); + + if (avcodec_check_dimensions(avctx, w, h)) + return -1; + if (w != avctx->width || h != avctx->height) + avcodec_set_dimensions(avctx, w, h); + if (avctx->get_buffer(avctx, p) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return -1; + } + + p->pict_type = FF_I_TYPE; + + ptr = p->data[0]; + stride = p->linesize[0]; + + if (depth == 8) { + pal = (uint32_t *) p->data[1]; + for (y=0; y<256; y++) { + v = AV_RB32(palette+y); + pal[y] = (v>>8) + (v<<24); + } + for (y=0; y<h; y++) { + memcpy(ptr, cur, w); + ptr += stride; + cur += w; + } + } else if (depth == 16) { + switch (d3d_format) { + case 0: + if (!flags&1) goto unsupported; + case FF_S3TC_DXT1: + ff_decode_dxt1(cur, ptr, w, h, stride); + break; + case FF_S3TC_DXT3: + ff_decode_dxt3(cur, ptr, w, h, stride); + break; + default: + goto unsupported; + } + } else if (depth == 32) { + switch (d3d_format) { + case 0x15: + case 0x16: + for (y=0; y<h; y++) { + memcpy(ptr, cur, w*4); + ptr += stride; + cur += w*4; + } + break; + default: + goto unsupported; + } + } + + for (; mipmap_count > 1; mipmap_count--) + cur += AV_RL32(cur) + 4; + + *picture = s->picture; + *data_size = sizeof(AVPicture); + + return cur - buf; + +unsupported: + av_log(avctx, AV_LOG_ERROR, "unsupported d3d format (%08x)\n", d3d_format); + return -1; +} + +static int txd_end(AVCodecContext *avctx) { + TXDContext *s = avctx->priv_data; + + if (s->picture.data[0]) + avctx->release_buffer(avctx, &s->picture); + + return 0; +} + +AVCodec txd_decoder = { + "txd", + CODEC_TYPE_VIDEO, + CODEC_ID_TXD, + sizeof(TXDContext), + txd_init, + NULL, + txd_end, + txd_decode_frame, + 0, + NULL +}; |