diff options
Diffstat (limited to 'libavcodec/mpegvideo_xvmc.c')
| -rw-r--r-- | libavcodec/mpegvideo_xvmc.c | 377 |
1 files changed, 0 insertions, 377 deletions
diff --git a/libavcodec/mpegvideo_xvmc.c b/libavcodec/mpegvideo_xvmc.c deleted file mode 100644 index f3ae9c4c0a..0000000000 --- a/libavcodec/mpegvideo_xvmc.c +++ /dev/null @@ -1,377 +0,0 @@ -/* - * XVideo Motion Compensation - * Copyright (c) 2003 Ivan Kalvachev - * - * 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 <limits.h> -#include <X11/extensions/XvMC.h> - -#include "avcodec.h" -#include "mpegutils.h" -#include "mpegvideo.h" -#include "mpegvideodec.h" - -#undef NDEBUG -#include <assert.h> - -#include "xvmc.h" -#include "xvmc_internal.h" -#include "version.h" - -/** - * Initialize the block field of the MpegEncContext pointer passed as - * parameter after making sure that the data is not corrupted. - * In order to implement something like direct rendering instead of decoding - * coefficients in s->blocks and then copying them, copy them directly - * into the data_blocks array provided by xvmc. - */ -void ff_xvmc_init_block(MpegEncContext *s) -{ - struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)s->current_picture.f->data[2]; - assert(render && render->xvmc_id == AV_XVMC_ID); - - s->block = (int16_t (*)[64])(render->data_blocks + render->next_free_data_block_num * 64); -} - -static void exchange_uv(MpegEncContext *s) -{ - int16_t (*tmp)[64]; - - tmp = s->pblocks[4]; - s->pblocks[4] = s->pblocks[5]; - s->pblocks[5] = tmp; -} - -/** - * Fill individual block pointers, so there are no gaps in the data_block array - * in case not all blocks in the macroblock are coded. - */ -void ff_xvmc_pack_pblocks(MpegEncContext *s, int cbp) -{ - int i, j = 0; - const int mb_block_count = 4 + (1 << s->chroma_format); - - cbp <<= 12-mb_block_count; - for (i = 0; i < mb_block_count; i++) { - if (cbp & (1 << 11)) - s->pblocks[i] = &s->block[j++]; - else - s->pblocks[i] = NULL; - cbp += cbp; - } - if (s->swap_uv) { - exchange_uv(s); - } -} - -/** - * Find and store the surfaces that are used as reference frames. - * This function should be called for every new field and/or frame. - * It should be safe to call the function a few times for the same field. - */ -static int ff_xvmc_field_start(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size) -{ - struct MpegEncContext *s = avctx->priv_data; - struct xvmc_pix_fmt *last, *next, *render = (struct xvmc_pix_fmt*)s->current_picture.f->data[2]; - const int mb_block_count = 4 + (1 << s->chroma_format); - - assert(avctx); - if (!render || render->xvmc_id != AV_XVMC_ID || - !render->data_blocks || !render->mv_blocks || - (unsigned int)render->allocated_mv_blocks > INT_MAX/(64*6) || - (unsigned int)render->allocated_data_blocks > INT_MAX/64 || - !render->p_surface) { - av_log(avctx, AV_LOG_ERROR, - "Render token doesn't look as expected.\n"); - return -1; // make sure that this is a render packet - } - - if (render->filled_mv_blocks_num) { - av_log(avctx, AV_LOG_ERROR, - "Rendering surface contains %i unprocessed blocks.\n", - render->filled_mv_blocks_num); - return -1; - } - if (render->allocated_mv_blocks < 1 || - render->allocated_data_blocks < render->allocated_mv_blocks*mb_block_count || - render->start_mv_blocks_num >= render->allocated_mv_blocks || - render->next_free_data_block_num > - render->allocated_data_blocks - - mb_block_count*(render->allocated_mv_blocks-render->start_mv_blocks_num)) { - av_log(avctx, AV_LOG_ERROR, - "Rendering surface doesn't provide enough block structures to work with.\n"); - return -1; - } - - render->picture_structure = s->picture_structure; - render->flags = s->first_field ? 0 : XVMC_SECOND_FIELD; - render->p_future_surface = NULL; - render->p_past_surface = NULL; - - switch(s->pict_type) { - case AV_PICTURE_TYPE_I: - return 0; // no prediction from other frames - case AV_PICTURE_TYPE_B: - next = (struct xvmc_pix_fmt*)s->next_picture.f->data[2]; - if (!next) - return -1; - if (next->xvmc_id != AV_XVMC_ID) - return -1; - render->p_future_surface = next->p_surface; - // no return here, going to set forward prediction - case AV_PICTURE_TYPE_P: - last = (struct xvmc_pix_fmt*)s->last_picture.f->data[2]; - if (!last) - last = render; // predict second field from the first - if (last->xvmc_id != AV_XVMC_ID) - return -1; - render->p_past_surface = last->p_surface; - return 0; - } - -return -1; -} - -/** - * Complete frame/field rendering by passing any remaining blocks. - * Normally ff_draw_horiz_band() is called for each slice, however, - * some leftover blocks, for example from error_resilience(), may remain. - * It should be safe to call the function a few times for the same field. - */ -static int ff_xvmc_field_end(AVCodecContext *avctx) -{ - struct MpegEncContext *s = avctx->priv_data; - struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)s->current_picture.f->data[2]; - assert(render); - - if (render->filled_mv_blocks_num > 0) - ff_mpeg_draw_horiz_band(s, 0, 0); - return 0; -} - -/** - * Synthesize the data needed by XvMC to render one macroblock of data. - * Fill all relevant fields, if necessary do IDCT. - */ -static void ff_xvmc_decode_mb(struct MpegEncContext *s) -{ - XvMCMacroBlock *mv_block; - struct xvmc_pix_fmt *render; - int i, cbp, blocks_per_mb; - - const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; - - - if (s->encoding) { - av_log(s->avctx, AV_LOG_ERROR, "XVMC doesn't support encoding!!!\n"); - return; - } - - // from ff_mpv_reconstruct_mb(), update DC predictors for P macroblocks - if (!s->mb_intra) { - s->last_dc[0] = - s->last_dc[1] = - s->last_dc[2] = 128 << s->intra_dc_precision; - } - - // MC doesn't skip blocks - s->mb_skipped = 0; - - - // Do I need to export quant when I could not perform postprocessing? - // Anyway, it doesn't hurt. - s->current_picture.qscale_table[mb_xy] = s->qscale; - - // start of XVMC-specific code - render = (struct xvmc_pix_fmt*)s->current_picture.f->data[2]; - assert(render); - assert(render->xvmc_id == AV_XVMC_ID); - assert(render->mv_blocks); - - // take the next free macroblock - mv_block = &render->mv_blocks[render->start_mv_blocks_num + - render->filled_mv_blocks_num]; - - mv_block->x = s->mb_x; - mv_block->y = s->mb_y; - mv_block->dct_type = s->interlaced_dct; // XVMC_DCT_TYPE_FRAME/FIELD; - if (s->mb_intra) { - mv_block->macroblock_type = XVMC_MB_TYPE_INTRA; // no MC, all done - } else { - mv_block->macroblock_type = XVMC_MB_TYPE_PATTERN; - - if (s->mv_dir & MV_DIR_FORWARD) { - mv_block->macroblock_type |= XVMC_MB_TYPE_MOTION_FORWARD; - // PMV[n][dir][xy] = mv[dir][n][xy] - mv_block->PMV[0][0][0] = s->mv[0][0][0]; - mv_block->PMV[0][0][1] = s->mv[0][0][1]; - mv_block->PMV[1][0][0] = s->mv[0][1][0]; - mv_block->PMV[1][0][1] = s->mv[0][1][1]; - } - if (s->mv_dir & MV_DIR_BACKWARD) { - mv_block->macroblock_type |= XVMC_MB_TYPE_MOTION_BACKWARD; - mv_block->PMV[0][1][0] = s->mv[1][0][0]; - mv_block->PMV[0][1][1] = s->mv[1][0][1]; - mv_block->PMV[1][1][0] = s->mv[1][1][0]; - mv_block->PMV[1][1][1] = s->mv[1][1][1]; - } - - switch(s->mv_type) { - case MV_TYPE_16X16: - mv_block->motion_type = XVMC_PREDICTION_FRAME; - break; - case MV_TYPE_16X8: - mv_block->motion_type = XVMC_PREDICTION_16x8; - break; - case MV_TYPE_FIELD: - mv_block->motion_type = XVMC_PREDICTION_FIELD; - if (s->picture_structure == PICT_FRAME) { - mv_block->PMV[0][0][1] <<= 1; - mv_block->PMV[1][0][1] <<= 1; - mv_block->PMV[0][1][1] <<= 1; - mv_block->PMV[1][1][1] <<= 1; - } - break; - case MV_TYPE_DMV: - mv_block->motion_type = XVMC_PREDICTION_DUAL_PRIME; - if (s->picture_structure == PICT_FRAME) { - - mv_block->PMV[0][0][0] = s->mv[0][0][0]; // top from top - mv_block->PMV[0][0][1] = s->mv[0][0][1] << 1; - - mv_block->PMV[0][1][0] = s->mv[0][0][0]; // bottom from bottom - mv_block->PMV[0][1][1] = s->mv[0][0][1] << 1; - - mv_block->PMV[1][0][0] = s->mv[0][2][0]; // dmv00, top from bottom - mv_block->PMV[1][0][1] = s->mv[0][2][1] << 1; // dmv01 - - mv_block->PMV[1][1][0] = s->mv[0][3][0]; // dmv10, bottom from top - mv_block->PMV[1][1][1] = s->mv[0][3][1] << 1; // dmv11 - - } else { - mv_block->PMV[0][1][0] = s->mv[0][2][0]; // dmv00 - mv_block->PMV[0][1][1] = s->mv[0][2][1]; // dmv01 - } - break; - default: - assert(0); - } - - mv_block->motion_vertical_field_select = 0; - - // set correct field references - if (s->mv_type == MV_TYPE_FIELD || s->mv_type == MV_TYPE_16X8) { - mv_block->motion_vertical_field_select |= s->field_select[0][0]; - mv_block->motion_vertical_field_select |= s->field_select[1][0] << 1; - mv_block->motion_vertical_field_select |= s->field_select[0][1] << 2; - mv_block->motion_vertical_field_select |= s->field_select[1][1] << 3; - } - } // !intra - // time to handle data blocks - mv_block->index = render->next_free_data_block_num; - - blocks_per_mb = 6; - if (s->chroma_format >= 2) { - blocks_per_mb = 4 + (1 << s->chroma_format); - } - - // calculate cbp - cbp = 0; - for (i = 0; i < blocks_per_mb; i++) { - cbp += cbp; - if (s->block_last_index[i] >= 0) - cbp++; - } - - if (s->avctx->flags & AV_CODEC_FLAG_GRAY) { - if (s->mb_intra) { // intra frames are always full chroma blocks - for (i = 4; i < blocks_per_mb; i++) { - memset(s->pblocks[i], 0, sizeof(*s->pblocks[i])); // so we need to clear them - if (!render->unsigned_intra) - *s->pblocks[i][0] = 1 << 10; - } - } else { - cbp &= 0xf << (blocks_per_mb - 4); - blocks_per_mb = 4; // luminance blocks only - } - } - mv_block->coded_block_pattern = cbp; - if (cbp == 0) - mv_block->macroblock_type &= ~XVMC_MB_TYPE_PATTERN; - - for (i = 0; i < blocks_per_mb; i++) { - if (s->block_last_index[i] >= 0) { - // I do not have unsigned_intra MOCO to test, hope it is OK. - if (s->mb_intra && (render->idct || !render->unsigned_intra)) - *s->pblocks[i][0] -= 1 << 10; - if (!render->idct) { - s->idsp.idct(*s->pblocks[i]); - /* It is unclear if MC hardware requires pixel diff values to be - * in the range [-255;255]. TODO: Clipping if such hardware is - * ever found. As of now it would only be an unnecessary - * slowdown. */ - } - // copy blocks only if the codec doesn't support pblocks reordering - if (!s->pack_pblocks) { - memcpy(&render->data_blocks[render->next_free_data_block_num*64], - s->pblocks[i], sizeof(*s->pblocks[i])); - } - render->next_free_data_block_num++; - } - } - render->filled_mv_blocks_num++; - - assert(render->filled_mv_blocks_num <= render->allocated_mv_blocks); - assert(render->next_free_data_block_num <= render->allocated_data_blocks); - /* The above conditions should not be able to fail as long as this function - * is used and the following 'if ()' automatically calls a callback to free - * blocks. */ - - - if (render->filled_mv_blocks_num == render->allocated_mv_blocks) - ff_mpeg_draw_horiz_band(s, 0, 0); -} - -#if CONFIG_MPEG1_XVMC_HWACCEL -const AVHWAccel ff_mpeg1_xvmc_hwaccel = { - .name = "mpeg1_xvmc", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_MPEG1VIDEO, - .pix_fmt = AV_PIX_FMT_XVMC, - .start_frame = ff_xvmc_field_start, - .end_frame = ff_xvmc_field_end, - .decode_slice = NULL, - .decode_mb = ff_xvmc_decode_mb, - .priv_data_size = 0, -}; -#endif - -#if CONFIG_MPEG2_XVMC_HWACCEL -const AVHWAccel ff_mpeg2_xvmc_hwaccel = { - .name = "mpeg2_xvmc", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_MPEG2VIDEO, - .pix_fmt = AV_PIX_FMT_XVMC, - .start_frame = ff_xvmc_field_start, - .end_frame = ff_xvmc_field_end, - .decode_slice = NULL, - .decode_mb = ff_xvmc_decode_mb, - .priv_data_size = 0, -}; -#endif |