michael@0: /*
michael@0:  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
michael@0:  *
michael@0:  *  Use of this source code is governed by a BSD-style license
michael@0:  *  that can be found in the LICENSE file in the root of the source
michael@0:  *  tree. An additional intellectual property rights grant can be found
michael@0:  *  in the file PATENTS.  All contributing project authors may
michael@0:  *  be found in the AUTHORS file in the root of the source tree.
michael@0:  */
michael@0: 
michael@0: 
michael@0: #include "vp8/common/onyxc_int.h"
michael@0: #if CONFIG_POSTPROC
michael@0: #include "vp8/common/postproc.h"
michael@0: #endif
michael@0: #include "vp8/common/onyxd.h"
michael@0: #include "onyxd_int.h"
michael@0: #include "vpx_mem/vpx_mem.h"
michael@0: #include "vp8/common/alloccommon.h"
michael@0: #include "vp8/common/loopfilter.h"
michael@0: #include "vp8/common/swapyv12buffer.h"
michael@0: #include "vp8/common/threading.h"
michael@0: #include "decoderthreading.h"
michael@0: #include <stdio.h>
michael@0: #include <assert.h>
michael@0: 
michael@0: #include "vp8/common/quant_common.h"
michael@0: #include "./vpx_scale_rtcd.h"
michael@0: #include "vpx_scale/vpx_scale.h"
michael@0: #include "vp8/common/systemdependent.h"
michael@0: #include "vpx_ports/vpx_timer.h"
michael@0: #include "detokenize.h"
michael@0: #if CONFIG_ERROR_CONCEALMENT
michael@0: #include "error_concealment.h"
michael@0: #endif
michael@0: #if ARCH_ARM
michael@0: #include "vpx_ports/arm.h"
michael@0: #endif
michael@0: 
michael@0: extern void vp8_init_loop_filter(VP8_COMMON *cm);
michael@0: extern void vp8cx_init_de_quantizer(VP8D_COMP *pbi);
michael@0: static int get_free_fb (VP8_COMMON *cm);
michael@0: static void ref_cnt_fb (int *buf, int *idx, int new_idx);
michael@0: 
michael@0: static void remove_decompressor(VP8D_COMP *pbi)
michael@0: {
michael@0: #if CONFIG_ERROR_CONCEALMENT
michael@0:     vp8_de_alloc_overlap_lists(pbi);
michael@0: #endif
michael@0:     vp8_remove_common(&pbi->common);
michael@0:     vpx_free(pbi);
michael@0: }
michael@0: 
michael@0: static struct VP8D_COMP * create_decompressor(VP8D_CONFIG *oxcf)
michael@0: {
michael@0:     VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP));
michael@0: 
michael@0:     if (!pbi)
michael@0:         return NULL;
michael@0: 
michael@0:     vpx_memset(pbi, 0, sizeof(VP8D_COMP));
michael@0: 
michael@0:     if (setjmp(pbi->common.error.jmp))
michael@0:     {
michael@0:         pbi->common.error.setjmp = 0;
michael@0:         remove_decompressor(pbi);
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     pbi->common.error.setjmp = 1;
michael@0: 
michael@0:     vp8_create_common(&pbi->common);
michael@0: 
michael@0:     pbi->common.current_video_frame = 0;
michael@0:     pbi->ready_for_new_data = 1;
michael@0: 
michael@0:     /* vp8cx_init_de_quantizer() is first called here. Add check in frame_init_dequantizer() to avoid
michael@0:      *  unnecessary calling of vp8cx_init_de_quantizer() for every frame.
michael@0:      */
michael@0:     vp8cx_init_de_quantizer(pbi);
michael@0: 
michael@0:     vp8_loop_filter_init(&pbi->common);
michael@0: 
michael@0:     pbi->common.error.setjmp = 0;
michael@0: 
michael@0: #if CONFIG_ERROR_CONCEALMENT
michael@0:     pbi->ec_enabled = oxcf->error_concealment;
michael@0:     pbi->overlaps = NULL;
michael@0: #else
michael@0:     pbi->ec_enabled = 0;
michael@0: #endif
michael@0:     /* Error concealment is activated after a key frame has been
michael@0:      * decoded without errors when error concealment is enabled.
michael@0:      */
michael@0:     pbi->ec_active = 0;
michael@0: 
michael@0:     pbi->decoded_key_frame = 0;
michael@0: 
michael@0:     /* Independent partitions is activated when a frame updates the
michael@0:      * token probability table to have equal probabilities over the
michael@0:      * PREV_COEF context.
michael@0:      */
michael@0:     pbi->independent_partitions = 0;
michael@0: 
michael@0:     vp8_setup_block_dptrs(&pbi->mb);
michael@0: 
michael@0:     return pbi;
michael@0: }
michael@0: 
michael@0: vpx_codec_err_t vp8dx_get_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
michael@0: {
michael@0:     VP8_COMMON *cm = &pbi->common;
michael@0:     int ref_fb_idx;
michael@0: 
michael@0:     if (ref_frame_flag == VP8_LAST_FRAME)
michael@0:         ref_fb_idx = cm->lst_fb_idx;
michael@0:     else if (ref_frame_flag == VP8_GOLD_FRAME)
michael@0:         ref_fb_idx = cm->gld_fb_idx;
michael@0:     else if (ref_frame_flag == VP8_ALTR_FRAME)
michael@0:         ref_fb_idx = cm->alt_fb_idx;
michael@0:     else{
michael@0:         vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
michael@0:             "Invalid reference frame");
michael@0:         return pbi->common.error.error_code;
michael@0:     }
michael@0: 
michael@0:     if(cm->yv12_fb[ref_fb_idx].y_height != sd->y_height ||
michael@0:         cm->yv12_fb[ref_fb_idx].y_width != sd->y_width ||
michael@0:         cm->yv12_fb[ref_fb_idx].uv_height != sd->uv_height ||
michael@0:         cm->yv12_fb[ref_fb_idx].uv_width != sd->uv_width){
michael@0:         vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
michael@0:             "Incorrect buffer dimensions");
michael@0:     }
michael@0:     else
michael@0:         vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
michael@0: 
michael@0:     return pbi->common.error.error_code;
michael@0: }
michael@0: 
michael@0: 
michael@0: vpx_codec_err_t vp8dx_set_reference(VP8D_COMP *pbi, enum vpx_ref_frame_type ref_frame_flag, YV12_BUFFER_CONFIG *sd)
michael@0: {
michael@0:     VP8_COMMON *cm = &pbi->common;
michael@0:     int *ref_fb_ptr = NULL;
michael@0:     int free_fb;
michael@0: 
michael@0:     if (ref_frame_flag == VP8_LAST_FRAME)
michael@0:         ref_fb_ptr = &cm->lst_fb_idx;
michael@0:     else if (ref_frame_flag == VP8_GOLD_FRAME)
michael@0:         ref_fb_ptr = &cm->gld_fb_idx;
michael@0:     else if (ref_frame_flag == VP8_ALTR_FRAME)
michael@0:         ref_fb_ptr = &cm->alt_fb_idx;
michael@0:     else{
michael@0:         vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
michael@0:             "Invalid reference frame");
michael@0:         return pbi->common.error.error_code;
michael@0:     }
michael@0: 
michael@0:     if(cm->yv12_fb[*ref_fb_ptr].y_height != sd->y_height ||
michael@0:         cm->yv12_fb[*ref_fb_ptr].y_width != sd->y_width ||
michael@0:         cm->yv12_fb[*ref_fb_ptr].uv_height != sd->uv_height ||
michael@0:         cm->yv12_fb[*ref_fb_ptr].uv_width != sd->uv_width){
michael@0:         vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
michael@0:             "Incorrect buffer dimensions");
michael@0:     }
michael@0:     else{
michael@0:         /* Find an empty frame buffer. */
michael@0:         free_fb = get_free_fb(cm);
michael@0:         /* Decrease fb_idx_ref_cnt since it will be increased again in
michael@0:          * ref_cnt_fb() below. */
michael@0:         cm->fb_idx_ref_cnt[free_fb]--;
michael@0: 
michael@0:         /* Manage the reference counters and copy image. */
michael@0:         ref_cnt_fb (cm->fb_idx_ref_cnt, ref_fb_ptr, free_fb);
michael@0:         vp8_yv12_copy_frame(sd, &cm->yv12_fb[*ref_fb_ptr]);
michael@0:     }
michael@0: 
michael@0:    return pbi->common.error.error_code;
michael@0: }
michael@0: 
michael@0: /*For ARM NEON, d8-d15 are callee-saved registers, and need to be saved by us.*/
michael@0: #if HAVE_NEON
michael@0: extern void vp8_push_neon(int64_t *store);
michael@0: extern void vp8_pop_neon(int64_t *store);
michael@0: #endif
michael@0: 
michael@0: static int get_free_fb (VP8_COMMON *cm)
michael@0: {
michael@0:     int i;
michael@0:     for (i = 0; i < NUM_YV12_BUFFERS; i++)
michael@0:         if (cm->fb_idx_ref_cnt[i] == 0)
michael@0:             break;
michael@0: 
michael@0:     assert(i < NUM_YV12_BUFFERS);
michael@0:     cm->fb_idx_ref_cnt[i] = 1;
michael@0:     return i;
michael@0: }
michael@0: 
michael@0: static void ref_cnt_fb (int *buf, int *idx, int new_idx)
michael@0: {
michael@0:     if (buf[*idx] > 0)
michael@0:         buf[*idx]--;
michael@0: 
michael@0:     *idx = new_idx;
michael@0: 
michael@0:     buf[new_idx]++;
michael@0: }
michael@0: 
michael@0: /* If any buffer copy / swapping is signalled it should be done here. */
michael@0: static int swap_frame_buffers (VP8_COMMON *cm)
michael@0: {
michael@0:     int err = 0;
michael@0: 
michael@0:     /* The alternate reference frame or golden frame can be updated
michael@0:      *  using the new, last, or golden/alt ref frame.  If it
michael@0:      *  is updated using the newly decoded frame it is a refresh.
michael@0:      *  An update using the last or golden/alt ref frame is a copy.
michael@0:      */
michael@0:     if (cm->copy_buffer_to_arf)
michael@0:     {
michael@0:         int new_fb = 0;
michael@0: 
michael@0:         if (cm->copy_buffer_to_arf == 1)
michael@0:             new_fb = cm->lst_fb_idx;
michael@0:         else if (cm->copy_buffer_to_arf == 2)
michael@0:             new_fb = cm->gld_fb_idx;
michael@0:         else
michael@0:             err = -1;
michael@0: 
michael@0:         ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb);
michael@0:     }
michael@0: 
michael@0:     if (cm->copy_buffer_to_gf)
michael@0:     {
michael@0:         int new_fb = 0;
michael@0: 
michael@0:         if (cm->copy_buffer_to_gf == 1)
michael@0:             new_fb = cm->lst_fb_idx;
michael@0:         else if (cm->copy_buffer_to_gf == 2)
michael@0:             new_fb = cm->alt_fb_idx;
michael@0:         else
michael@0:             err = -1;
michael@0: 
michael@0:         ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb);
michael@0:     }
michael@0: 
michael@0:     if (cm->refresh_golden_frame)
michael@0:         ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx);
michael@0: 
michael@0:     if (cm->refresh_alt_ref_frame)
michael@0:         ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->alt_fb_idx, cm->new_fb_idx);
michael@0: 
michael@0:     if (cm->refresh_last_frame)
michael@0:     {
michael@0:         ref_cnt_fb (cm->fb_idx_ref_cnt, &cm->lst_fb_idx, cm->new_fb_idx);
michael@0: 
michael@0:         cm->frame_to_show = &cm->yv12_fb[cm->lst_fb_idx];
michael@0:     }
michael@0:     else
michael@0:         cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
michael@0: 
michael@0:     cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
michael@0: 
michael@0:     return err;
michael@0: }
michael@0: 
michael@0: int check_fragments_for_errors(VP8D_COMP *pbi)
michael@0: {
michael@0:     if (!pbi->ec_active &&
michael@0:         pbi->fragments.count <= 1 && pbi->fragments.sizes[0] == 0)
michael@0:     {
michael@0:         VP8_COMMON *cm = &pbi->common;
michael@0: 
michael@0:         /* If error concealment is disabled we won't signal missing frames
michael@0:          * to the decoder.
michael@0:          */
michael@0:         if (cm->fb_idx_ref_cnt[cm->lst_fb_idx] > 1)
michael@0:         {
michael@0:             /* The last reference shares buffer with another reference
michael@0:              * buffer. Move it to its own buffer before setting it as
michael@0:              * corrupt, otherwise we will make multiple buffers corrupt.
michael@0:              */
michael@0:             const int prev_idx = cm->lst_fb_idx;
michael@0:             cm->fb_idx_ref_cnt[prev_idx]--;
michael@0:             cm->lst_fb_idx = get_free_fb(cm);
michael@0:             vp8_yv12_copy_frame(&cm->yv12_fb[prev_idx],
michael@0:                                     &cm->yv12_fb[cm->lst_fb_idx]);
michael@0:         }
michael@0:         /* This is used to signal that we are missing frames.
michael@0:          * We do not know if the missing frame(s) was supposed to update
michael@0:          * any of the reference buffers, but we act conservative and
michael@0:          * mark only the last buffer as corrupted.
michael@0:          */
michael@0:         cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
michael@0: 
michael@0:         /* Signal that we have no frame to show. */
michael@0:         cm->show_frame = 0;
michael@0: 
michael@0:         /* Nothing more to do. */
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     return 1;
michael@0: }
michael@0: 
michael@0: int vp8dx_receive_compressed_data(VP8D_COMP *pbi, size_t size,
michael@0:                                   const uint8_t *source,
michael@0:                                   int64_t time_stamp)
michael@0: {
michael@0: #if HAVE_NEON
michael@0:     int64_t dx_store_reg[8];
michael@0: #endif
michael@0:     VP8_COMMON *cm = &pbi->common;
michael@0:     int retcode = -1;
michael@0: 
michael@0:     pbi->common.error.error_code = VPX_CODEC_OK;
michael@0: 
michael@0:     retcode = check_fragments_for_errors(pbi);
michael@0:     if(retcode <= 0)
michael@0:         return retcode;
michael@0: 
michael@0: #if HAVE_NEON
michael@0: #if CONFIG_RUNTIME_CPU_DETECT
michael@0:     if (cm->cpu_caps & HAS_NEON)
michael@0: #endif
michael@0:     {
michael@0:         vp8_push_neon(dx_store_reg);
michael@0:     }
michael@0: #endif
michael@0: 
michael@0:     cm->new_fb_idx = get_free_fb (cm);
michael@0: 
michael@0:     /* setup reference frames for vp8_decode_frame */
michael@0:     pbi->dec_fb_ref[INTRA_FRAME]  = &cm->yv12_fb[cm->new_fb_idx];
michael@0:     pbi->dec_fb_ref[LAST_FRAME]   = &cm->yv12_fb[cm->lst_fb_idx];
michael@0:     pbi->dec_fb_ref[GOLDEN_FRAME] = &cm->yv12_fb[cm->gld_fb_idx];
michael@0:     pbi->dec_fb_ref[ALTREF_FRAME] = &cm->yv12_fb[cm->alt_fb_idx];
michael@0: 
michael@0:     if (setjmp(pbi->common.error.jmp))
michael@0:     {
michael@0:        /* We do not know if the missing frame(s) was supposed to update
michael@0:         * any of the reference buffers, but we act conservative and
michael@0:         * mark only the last buffer as corrupted.
michael@0:         */
michael@0:         cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
michael@0: 
michael@0:         if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
michael@0:           cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
michael@0: 
michael@0:         goto decode_exit;
michael@0:     }
michael@0: 
michael@0:     pbi->common.error.setjmp = 1;
michael@0: 
michael@0:     retcode = vp8_decode_frame(pbi);
michael@0: 
michael@0:     if (retcode < 0)
michael@0:     {
michael@0:         if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0)
michael@0:           cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
michael@0: 
michael@0:         pbi->common.error.error_code = VPX_CODEC_ERROR;
michael@0:         goto decode_exit;
michael@0:     }
michael@0: 
michael@0:     if (swap_frame_buffers (cm))
michael@0:     {
michael@0:         pbi->common.error.error_code = VPX_CODEC_ERROR;
michael@0:         goto decode_exit;
michael@0:     }
michael@0: 
michael@0:     vp8_clear_system_state();
michael@0: 
michael@0:     if (cm->show_frame)
michael@0:     {
michael@0:         cm->current_video_frame++;
michael@0:         cm->show_frame_mi = cm->mi;
michael@0:     }
michael@0: 
michael@0:     #if CONFIG_ERROR_CONCEALMENT
michael@0:     /* swap the mode infos to storage for future error concealment */
michael@0:     if (pbi->ec_enabled && pbi->common.prev_mi)
michael@0:     {
michael@0:         MODE_INFO* tmp = pbi->common.prev_mi;
michael@0:         int row, col;
michael@0:         pbi->common.prev_mi = pbi->common.mi;
michael@0:         pbi->common.mi = tmp;
michael@0: 
michael@0:         /* Propagate the segment_ids to the next frame */
michael@0:         for (row = 0; row < pbi->common.mb_rows; ++row)
michael@0:         {
michael@0:             for (col = 0; col < pbi->common.mb_cols; ++col)
michael@0:             {
michael@0:                 const int i = row*pbi->common.mode_info_stride + col;
michael@0:                 pbi->common.mi[i].mbmi.segment_id =
michael@0:                         pbi->common.prev_mi[i].mbmi.segment_id;
michael@0:             }
michael@0:         }
michael@0:     }
michael@0: #endif
michael@0: 
michael@0:     pbi->ready_for_new_data = 0;
michael@0:     pbi->last_time_stamp = time_stamp;
michael@0: 
michael@0: decode_exit:
michael@0: #if HAVE_NEON
michael@0: #if CONFIG_RUNTIME_CPU_DETECT
michael@0:     if (cm->cpu_caps & HAS_NEON)
michael@0: #endif
michael@0:     {
michael@0:         vp8_pop_neon(dx_store_reg);
michael@0:     }
michael@0: #endif
michael@0: 
michael@0:     pbi->common.error.setjmp = 0;
michael@0:     return retcode;
michael@0: }
michael@0: int vp8dx_get_raw_frame(VP8D_COMP *pbi, YV12_BUFFER_CONFIG *sd, int64_t *time_stamp, int64_t *time_end_stamp, vp8_ppflags_t *flags)
michael@0: {
michael@0:     int ret = -1;
michael@0: 
michael@0:     if (pbi->ready_for_new_data == 1)
michael@0:         return ret;
michael@0: 
michael@0:     /* ie no raw frame to show!!! */
michael@0:     if (pbi->common.show_frame == 0)
michael@0:         return ret;
michael@0: 
michael@0:     pbi->ready_for_new_data = 1;
michael@0:     *time_stamp = pbi->last_time_stamp;
michael@0:     *time_end_stamp = 0;
michael@0: 
michael@0: #if CONFIG_POSTPROC
michael@0:     ret = vp8_post_proc_frame(&pbi->common, sd, flags);
michael@0: #else
michael@0: 
michael@0:     if (pbi->common.frame_to_show)
michael@0:     {
michael@0:         *sd = *pbi->common.frame_to_show;
michael@0:         sd->y_width = pbi->common.Width;
michael@0:         sd->y_height = pbi->common.Height;
michael@0:         sd->uv_height = pbi->common.Height / 2;
michael@0:         ret = 0;
michael@0:     }
michael@0:     else
michael@0:     {
michael@0:         ret = -1;
michael@0:     }
michael@0: 
michael@0: #endif /*!CONFIG_POSTPROC*/
michael@0:     vp8_clear_system_state();
michael@0:     return ret;
michael@0: }
michael@0: 
michael@0: 
michael@0: /* This function as written isn't decoder specific, but the encoder has
michael@0:  * much faster ways of computing this, so it's ok for it to live in a
michael@0:  * decode specific file.
michael@0:  */
michael@0: int vp8dx_references_buffer( VP8_COMMON *oci, int ref_frame )
michael@0: {
michael@0:     const MODE_INFO *mi = oci->mi;
michael@0:     int mb_row, mb_col;
michael@0: 
michael@0:     for (mb_row = 0; mb_row < oci->mb_rows; mb_row++)
michael@0:     {
michael@0:         for (mb_col = 0; mb_col < oci->mb_cols; mb_col++,mi++)
michael@0:         {
michael@0:             if( mi->mbmi.ref_frame == ref_frame)
michael@0:               return 1;
michael@0:         }
michael@0:         mi++;
michael@0:     }
michael@0:     return 0;
michael@0: 
michael@0: }
michael@0: 
michael@0: int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf)
michael@0: {
michael@0:     if(!fb->use_frame_threads)
michael@0:     {
michael@0:         /* decoder instance for single thread mode */
michael@0:         fb->pbi[0] = create_decompressor(oxcf);
michael@0:         if(!fb->pbi[0])
michael@0:             return VPX_CODEC_ERROR;
michael@0: 
michael@0: #if CONFIG_MULTITHREAD
michael@0:         /* enable row-based threading only when use_frame_threads
michael@0:          * is disabled */
michael@0:         fb->pbi[0]->max_threads = oxcf->max_threads;
michael@0:         vp8_decoder_create_threads(fb->pbi[0]);
michael@0: #endif
michael@0:     }
michael@0:     else
michael@0:     {
michael@0:         /* TODO : create frame threads and decoder instances for each
michael@0:          * thread here */
michael@0:     }
michael@0: 
michael@0:     return VPX_CODEC_OK;
michael@0: }
michael@0: 
michael@0: int vp8_remove_decoder_instances(struct frame_buffers *fb)
michael@0: {
michael@0:     if(!fb->use_frame_threads)
michael@0:     {
michael@0:         VP8D_COMP *pbi = fb->pbi[0];
michael@0: 
michael@0:         if (!pbi)
michael@0:             return VPX_CODEC_ERROR;
michael@0: #if CONFIG_MULTITHREAD
michael@0:         if (pbi->b_multithreaded_rd)
michael@0:             vp8mt_de_alloc_temp_buffers(pbi, pbi->common.mb_rows);
michael@0:         vp8_decoder_remove_threads(pbi);
michael@0: #endif
michael@0: 
michael@0:         /* decoder instance for single thread mode */
michael@0:         remove_decompressor(pbi);
michael@0:     }
michael@0:     else
michael@0:     {
michael@0:         /* TODO : remove frame threads and decoder instances for each
michael@0:          * thread here */
michael@0:     }
michael@0: 
michael@0:     return VPX_CODEC_OK;
michael@0: }