* Electronic Arts TQI Video Decoder
* Copyright (c) 2007-2009 Peter Ross <pross@xvid.org>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file eatqi.c
+ * @file
* Electronic Arts TQI Video Decoder
- * by Peter Ross <pross@xvid.org>
- *
- * Technical details here:
- * http://wiki.multimedia.cx/index.php?title=Electronic_Arts_TQI
+ * @author Peter Ross <pross@xvid.org>
+ * @see http://wiki.multimedia.cx/index.php?title=Electronic_Arts_TQI
*/
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
#include "aandcttab.h"
+#include "eaidct.h"
#include "mpeg12.h"
#include "mpegvideo.h"
TqiContext *t = avctx->priv_data;
MpegEncContext *s = &t->s;
s->avctx = avctx;
- if(avctx->idct_algo==FF_IDCT_AUTO)
- avctx->idct_algo=FF_IDCT_EA;
- dsputil_init(&s->dsp, avctx);
+ ff_dsputil_init(&s->dsp, avctx);
+ ff_init_scantable_permutation(s->dsp.idct_permutation, FF_NO_IDCT_PERM);
ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
s->qscale = 1;
avctx->time_base = (AVRational){1, 15};
- avctx->pix_fmt = PIX_FMT_YUV420P;
+ avctx->pix_fmt = AV_PIX_FMT_YUV420P;
ff_mpeg12_init_vlcs();
return 0;
}
-static void tqi_decode_mb(MpegEncContext *s, DCTELEM (*block)[64])
+static int tqi_decode_mb(MpegEncContext *s, DCTELEM (*block)[64])
{
int n;
s->dsp.clear_blocks(block[0]);
for (n=0; n<6; n++)
- ff_mpeg1_decode_block_intra(s, block[n], n);
+ if (ff_mpeg1_decode_block_intra(s, block[n], n) < 0)
+ return -1;
+
+ return 0;
}
static inline void tqi_idct_put(TqiContext *t, DCTELEM (*block)[64])
uint8_t *dest_cb = t->frame.data[1] + (s->mb_y * 8 * t->frame.linesize[1]) + s->mb_x * 8;
uint8_t *dest_cr = t->frame.data[2] + (s->mb_y * 8 * t->frame.linesize[2]) + s->mb_x * 8;
- s->dsp.idct_put(dest_y , linesize, block[0]);
- s->dsp.idct_put(dest_y + 8, linesize, block[1]);
- s->dsp.idct_put(dest_y + 8*linesize , linesize, block[2]);
- s->dsp.idct_put(dest_y + 8*linesize + 8, linesize, block[3]);
+ ff_ea_idct_put_c(dest_y , linesize, block[0]);
+ ff_ea_idct_put_c(dest_y + 8, linesize, block[1]);
+ ff_ea_idct_put_c(dest_y + 8*linesize , linesize, block[2]);
+ ff_ea_idct_put_c(dest_y + 8*linesize + 8, linesize, block[3]);
if(!(s->avctx->flags&CODEC_FLAG_GRAY)) {
- s->dsp.idct_put(dest_cb, t->frame.linesize[1], block[4]);
- s->dsp.idct_put(dest_cr, t->frame.linesize[2], block[5]);
+ ff_ea_idct_put_c(dest_cb, t->frame.linesize[1], block[4]);
+ ff_ea_idct_put_c(dest_cr, t->frame.linesize[2], block[5]);
}
}
{
const int qscale = (215 - 2*quant)*5;
int i;
- if (s->avctx->idct_algo==FF_IDCT_EA) {
- s->intra_matrix[0] = (ff_inv_aanscales[0]*ff_mpeg1_default_intra_matrix[0])>>11;
- for(i=1; i<64; i++)
- s->intra_matrix[i] = (ff_inv_aanscales[i]*ff_mpeg1_default_intra_matrix[i]*qscale + 32)>>14;
- }else{
- s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
- for(i=1; i<64; i++)
- s->intra_matrix[i] = (ff_mpeg1_default_intra_matrix[i]*qscale + 32)>>3;
- }
+ s->intra_matrix[0] = (ff_inv_aanscales[0]*ff_mpeg1_default_intra_matrix[0])>>11;
+ for(i=1; i<64; i++)
+ s->intra_matrix[i] = (ff_inv_aanscales[i]*ff_mpeg1_default_intra_matrix[i]*qscale + 32)>>14;
}
static int tqi_decode_frame(AVCodecContext *avctx,
return -1;
}
- av_fast_malloc(&t->bitstream_buf, &t->bitstream_buf_size, (buf_end-buf) + FF_INPUT_BUFFER_PADDING_SIZE);
+ av_fast_padded_malloc(&t->bitstream_buf, &t->bitstream_buf_size,
+ buf_end - buf);
if (!t->bitstream_buf)
return AVERROR(ENOMEM);
s->dsp.bswap_buf(t->bitstream_buf, (const uint32_t*)buf, (buf_end-buf)/4);
for (s->mb_y=0; s->mb_y<(avctx->height+15)/16; s->mb_y++)
for (s->mb_x=0; s->mb_x<(avctx->width+15)/16; s->mb_x++)
{
- tqi_decode_mb(s, t->block);
+ if (tqi_decode_mb(s, t->block) < 0)
+ break;
tqi_idct_put(t, t->block);
}
return 0;
}
-AVCodec eatqi_decoder = {
- "eatqi",
- CODEC_TYPE_VIDEO,
- CODEC_ID_TQI,
- sizeof(TqiContext),
- tqi_decode_init,
- NULL,
- tqi_decode_end,
- tqi_decode_frame,
- CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts TQI Video"),
+AVCodec ff_eatqi_decoder = {
+ .name = "eatqi",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_TQI,
+ .priv_data_size = sizeof(TqiContext),
+ .init = tqi_decode_init,
+ .close = tqi_decode_end,
+ .decode = tqi_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
+ .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts TQI Video"),
};
projects / ffmpeg / blobdiff