static vpx_image_t *vp8_get_frame(vpx_codec_alg_priv_t *ctx, vpx_codec_iter_t *iter) { vpx_image_t *img = NULL; /* iter acts as a flip flop, so an image is only returned on the first * call to get_frame. */ if (!(*iter) && ctx->yv12_frame_buffers.pbi[0]) { YV12_BUFFER_CONFIG sd; int64_t time_stamp = 0, time_end_stamp = 0; vp8_ppflags_t flags = {0}; if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) { flags.post_proc_flag= ctx->postproc_cfg.post_proc_flag #if CONFIG_POSTPROC_VISUALIZER | ((ctx->dbg_color_ref_frame_flag != 0) ? VP8D_DEBUG_CLR_FRM_REF_BLKS : 0) | ((ctx->dbg_color_mb_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0) | ((ctx->dbg_color_b_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0) | ((ctx->dbg_display_mv_flag != 0) ? VP8D_DEBUG_DRAW_MV : 0) #endif ; flags.deblocking_level = ctx->postproc_cfg.deblocking_level; flags.noise_level = ctx->postproc_cfg.noise_level; #if CONFIG_POSTPROC_VISUALIZER flags.display_ref_frame_flag= ctx->dbg_color_ref_frame_flag; flags.display_mb_modes_flag = ctx->dbg_color_mb_modes_flag; flags.display_b_modes_flag = ctx->dbg_color_b_modes_flag; flags.display_mv_flag = ctx->dbg_display_mv_flag; #endif } if (0 == vp8dx_get_raw_frame(ctx->yv12_frame_buffers.pbi[0], &sd, &time_stamp, &time_end_stamp, &flags)) { yuvconfig2image(&ctx->img, &sd, ctx->user_priv); img = &ctx->img; *iter = img; } } return img; }
static vpx_codec_err_t vp8_decode(vpx_codec_alg_priv_t *ctx, const uint8_t *data, unsigned int data_sz, void *user_priv, long deadline) { vpx_codec_err_t res = VPX_CODEC_OK; ctx->img_avail = 0; /* Determine the stream parameters. Note that we rely on peek_si to * validate that we have a buffer that does not wrap around the top * of the heap. */ if (!ctx->si.h) res = ctx->base.iface->dec.peek_si(data, data_sz, &ctx->si); /* Perform deferred allocations, if required */ if (!res && ctx->defer_alloc) { int i; for (i = 1; !res && i < NELEMENTS(ctx->mmaps); i++) { vpx_codec_dec_cfg_t cfg; cfg.w = ctx->si.w; cfg.h = ctx->si.h; ctx->mmaps[i].id = vp8_mem_req_segs[i].id; ctx->mmaps[i].sz = vp8_mem_req_segs[i].sz; ctx->mmaps[i].align = vp8_mem_req_segs[i].align; ctx->mmaps[i].flags = vp8_mem_req_segs[i].flags; if (!ctx->mmaps[i].sz) ctx->mmaps[i].sz = vp8_mem_req_segs[i].calc_sz(&cfg, ctx->base.init_flags); res = vp8_mmap_alloc(&ctx->mmaps[i]); } if (!res) vp8_finalize_mmaps(ctx); ctx->defer_alloc = 0; } /* Initialize the decoder instance on the first frame*/ if (!res && !ctx->decoder_init) { res = vp8_validate_mmaps(&ctx->si, ctx->mmaps, ctx->base.init_flags); if (!res) { VP8D_CONFIG oxcf; VP8D_PTR optr; vp8dx_initialize(); oxcf.Width = ctx->si.w; oxcf.Height = ctx->si.h; oxcf.Version = 9; oxcf.postprocess = 0; oxcf.max_threads = ctx->cfg.threads; optr = vp8dx_create_decompressor(&oxcf); /* If postprocessing was enabled by the application and a * configuration has not been provided, default it. */ if (!ctx->postproc_cfg_set && (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC)) { ctx->postproc_cfg.post_proc_flag = VP8_DEBLOCK | VP8_DEMACROBLOCK; ctx->postproc_cfg.deblocking_level = 4; ctx->postproc_cfg.noise_level = 0; } if (!optr) res = VPX_CODEC_ERROR; else ctx->pbi = optr; } ctx->decoder_init = 1; } if (!res && ctx->pbi) { YV12_BUFFER_CONFIG sd; INT64 time_stamp = 0, time_end_stamp = 0; vp8_ppflags_t flags = {0}; if (ctx->base.init_flags & VPX_CODEC_USE_POSTPROC) { flags.post_proc_flag= ctx->postproc_cfg.post_proc_flag #if CONFIG_POSTPROC_VISUALIZER | ((ctx->dbg_color_ref_frame_flag != 0) ? VP8D_DEBUG_CLR_FRM_REF_BLKS : 0) | ((ctx->dbg_color_mb_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0) | ((ctx->dbg_color_b_modes_flag != 0) ? VP8D_DEBUG_CLR_BLK_MODES : 0) | ((ctx->dbg_display_mv_flag != 0) ? VP8D_DEBUG_DRAW_MV : 0) #endif ; flags.deblocking_level = ctx->postproc_cfg.deblocking_level; flags.noise_level = ctx->postproc_cfg.noise_level; #if CONFIG_POSTPROC_VISUALIZER flags.display_ref_frame_flag= ctx->dbg_color_ref_frame_flag; flags.display_mb_modes_flag = ctx->dbg_color_mb_modes_flag; flags.display_b_modes_flag = ctx->dbg_color_b_modes_flag; flags.display_mv_flag = ctx->dbg_display_mv_flag; #endif } if (vp8dx_receive_compressed_data(ctx->pbi, data_sz, data, deadline)) { VP8D_COMP *pbi = (VP8D_COMP *)ctx->pbi; res = update_error_state(ctx, &pbi->common.error); } if (!res && 0 == vp8dx_get_raw_frame(ctx->pbi, &sd, &time_stamp, &time_end_stamp, &flags)) { /* Align width/height */ unsigned int a_w = (sd.y_width + 15) & ~15; unsigned int a_h = (sd.y_height + 15) & ~15; vpx_img_wrap(&ctx->img, VPX_IMG_FMT_I420, a_w + 2 * VP8BORDERINPIXELS, a_h + 2 * VP8BORDERINPIXELS, 1, sd.buffer_alloc); vpx_img_set_rect(&ctx->img, VP8BORDERINPIXELS, VP8BORDERINPIXELS, sd.y_width, sd.y_height); ctx->img.user_priv = user_priv; ctx->img_avail = 1; } } return res; }