ref: aaaf9215e21d9aae155738aadeeaded3662d8b16
dir: /vp8/decoder/onyxd_if.c/
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vp8/common/onyxc_int.h"
#if CONFIG_POSTPROC
#include "vp8/common/postproc.h"
#endif
#include "vp8/common/onyxd.h"
#include "onyxd_int.h"
#include "vpx_mem/vpx_mem.h"
#include "vp8/common/alloccommon.h"
#include "vp8/common/loopfilter.h"
#include "vp8/common/swapyv12buffer.h"
#include "vp8/common/threading.h"
#include "decoderthreading.h"
#include <stdio.h>
#include <assert.h>
#include "vp8/common/quant_common.h"
#include "vp8/common/reconintra.h"
#include "./vpx_dsp_rtcd.h"
#include "./vpx_scale_rtcd.h"
#include "vpx_scale/vpx_scale.h"
#include "vp8/common/systemdependent.h"
#include "vpx_ports/system_state.h"
#include "vpx_ports/vpx_once.h"
#include "vpx_ports/vpx_timer.h"
#include "detokenize.h"
#if CONFIG_ERROR_CONCEALMENT
#include "error_concealment.h"
#endif
#if ARCH_ARM
#include "vpx_ports/arm.h"
#endif
extern void vp8_init_loop_filter(VP8_COMMON *cm);
static int get_free_fb(VP8_COMMON *cm);
static void ref_cnt_fb(int *buf, int *idx, int new_idx);
static void initialize_dec(void) {
static volatile int init_done = 0;
if (!init_done) {
vpx_dsp_rtcd();
vp8_init_intra_predictors();
init_done = 1;
}
}
static void remove_decompressor(VP8D_COMP *pbi) {
#if CONFIG_ERROR_CONCEALMENT
vp8_de_alloc_overlap_lists(pbi);
#endif
vp8_remove_common(&pbi->common);
vpx_free(pbi);
}
static struct VP8D_COMP *create_decompressor(VP8D_CONFIG *oxcf) {
VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP));
if (!pbi) return NULL;
memset(pbi, 0, sizeof(VP8D_COMP));
if (setjmp(pbi->common.error.jmp)) {
pbi->common.error.setjmp = 0;
remove_decompressor(pbi);
return 0;
}
pbi->common.error.setjmp = 1;
vp8_create_common(&pbi->common);
pbi->common.current_video_frame = 0;
pbi->ready_for_new_data = 1;
/* vp8cx_init_de_quantizer() is first called here. Add check in
* frame_init_dequantizer() to avoid
* unnecessary calling of vp8cx_init_de_quantizer() for every frame.
*/
vp8cx_init_de_quantizer(pbi);
vp8_loop_filter_init(&pbi->common);
pbi->common.error.setjmp = 0;
#if CONFIG_ERROR_CONCEALMENT
pbi->ec_enabled = oxcf->error_concealment;
pbi->overlaps = NULL;
#else
(void)oxcf;
pbi->ec_enabled = 0;
#endif
/* Error concealment is activated after a key frame has been
* decoded without errors when error concealment is enabled.
*/
pbi->ec_active = 0;
pbi->decoded_key_frame = 0;
/* Independent partitions is activated when a frame updates the
* token probability table to have equal probabilities over the
* PREV_COEF context.
*/
pbi->independent_partitions = 0;
vp8_setup_block_dptrs(&pbi->mb);
once(initialize_dec);
return pbi;
}
vpx_codec_err_t vp8dx_get_reference(VP8D_COMP *pbi,
enum vpx_ref_frame_type ref_frame_flag,
YV12_BUFFER_CONFIG *sd) {
VP8_COMMON *cm = &pbi->common;
int ref_fb_idx;
if (ref_frame_flag == VP8_LAST_FRAME) {
ref_fb_idx = cm->lst_fb_idx;
} else if (ref_frame_flag == VP8_GOLD_FRAME) {
ref_fb_idx = cm->gld_fb_idx;
} else if (ref_frame_flag == VP8_ALTR_FRAME) {
ref_fb_idx = cm->alt_fb_idx;
} else {
vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
"Invalid reference frame");
return pbi->common.error.error_code;
}
if (cm->yv12_fb[ref_fb_idx].y_height != sd->y_height ||
cm->yv12_fb[ref_fb_idx].y_width != sd->y_width ||
cm->yv12_fb[ref_fb_idx].uv_height != sd->uv_height ||
cm->yv12_fb[ref_fb_idx].uv_width != sd->uv_width) {
vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
"Incorrect buffer dimensions");
} else
vp8_yv12_copy_frame(&cm->yv12_fb[ref_fb_idx], sd);
return pbi->common.error.error_code;
}
vpx_codec_err_t vp8dx_set_reference(VP8D_COMP *pbi,
enum vpx_ref_frame_type ref_frame_flag,
YV12_BUFFER_CONFIG *sd) {
VP8_COMMON *cm = &pbi->common;
int *ref_fb_ptr = NULL;
int free_fb;
if (ref_frame_flag == VP8_LAST_FRAME) {
ref_fb_ptr = &cm->lst_fb_idx;
} else if (ref_frame_flag == VP8_GOLD_FRAME) {
ref_fb_ptr = &cm->gld_fb_idx;
} else if (ref_frame_flag == VP8_ALTR_FRAME) {
ref_fb_ptr = &cm->alt_fb_idx;
} else {
vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
"Invalid reference frame");
return pbi->common.error.error_code;
}
if (cm->yv12_fb[*ref_fb_ptr].y_height != sd->y_height ||
cm->yv12_fb[*ref_fb_ptr].y_width != sd->y_width ||
cm->yv12_fb[*ref_fb_ptr].uv_height != sd->uv_height ||
cm->yv12_fb[*ref_fb_ptr].uv_width != sd->uv_width) {
vpx_internal_error(&pbi->common.error, VPX_CODEC_ERROR,
"Incorrect buffer dimensions");
} else {
/* Find an empty frame buffer. */
free_fb = get_free_fb(cm);
/* Decrease fb_idx_ref_cnt since it will be increased again in
* ref_cnt_fb() below. */
cm->fb_idx_ref_cnt[free_fb]--;
/* Manage the reference counters and copy image. */
ref_cnt_fb(cm->fb_idx_ref_cnt, ref_fb_ptr, free_fb);
vp8_yv12_copy_frame(sd, &cm->yv12_fb[*ref_fb_ptr]);
}
return pbi->common.error.error_code;
}
static int get_free_fb(VP8_COMMON *cm) {
int i;
for (i = 0; i < NUM_YV12_BUFFERS; ++i) {
if (cm->fb_idx_ref_cnt[i] == 0) break;
}
assert(i < NUM_YV12_BUFFERS);
cm->fb_idx_ref_cnt[i] = 1;
return i;
}
static void ref_cnt_fb(int *buf, int *idx, int new_idx) {
if (buf[*idx] > 0) buf[*idx]--;
*idx = new_idx;
buf[new_idx]++;
}
/* If any buffer copy / swapping is signalled it should be done here. */
static int swap_frame_buffers(VP8_COMMON *cm) {
int err = 0;
/* The alternate reference frame or golden frame can be updated
* using the new, last, or golden/alt ref frame. If it
* is updated using the newly decoded frame it is a refresh.
* An update using the last or golden/alt ref frame is a copy.
*/
if (cm->copy_buffer_to_arf) {
int new_fb = 0;
if (cm->copy_buffer_to_arf == 1) {
new_fb = cm->lst_fb_idx;
} else if (cm->copy_buffer_to_arf == 2) {
new_fb = cm->gld_fb_idx;
} else {
err = -1;
}
ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb);
}
if (cm->copy_buffer_to_gf) {
int new_fb = 0;
if (cm->copy_buffer_to_gf == 1) {
new_fb = cm->lst_fb_idx;
} else if (cm->copy_buffer_to_gf == 2) {
new_fb = cm->alt_fb_idx;
} else {
err = -1;
}
ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb);
}
if (cm->refresh_golden_frame) {
ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx);
}
if (cm->refresh_alt_ref_frame) {
ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->alt_fb_idx, cm->new_fb_idx);
}
if (cm->refresh_last_frame) {
ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->lst_fb_idx, cm->new_fb_idx);
cm->frame_to_show = &cm->yv12_fb[cm->lst_fb_idx];
} else {
cm->frame_to_show = &cm->yv12_fb[cm->new_fb_idx];
}
cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
return err;
}
static int check_fragments_for_errors(VP8D_COMP *pbi) {
if (!pbi->ec_active && pbi->fragments.count <= 1 &&
pbi->fragments.sizes[0] == 0) {
VP8_COMMON *cm = &pbi->common;
/* If error concealment is disabled we won't signal missing frames
* to the decoder.
*/
if (cm->fb_idx_ref_cnt[cm->lst_fb_idx] > 1) {
/* The last reference shares buffer with another reference
* buffer. Move it to its own buffer before setting it as
* corrupt, otherwise we will make multiple buffers corrupt.
*/
const int prev_idx = cm->lst_fb_idx;
cm->fb_idx_ref_cnt[prev_idx]--;
cm->lst_fb_idx = get_free_fb(cm);
vp8_yv12_copy_frame(&cm->yv12_fb[prev_idx], &cm->yv12_fb[cm->lst_fb_idx]);
}
/* This is used to signal that we are missing frames.
* We do not know if the missing frame(s) was supposed to update
* any of the reference buffers, but we act conservative and
* mark only the last buffer as corrupted.
*/
cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
/* Signal that we have no frame to show. */
cm->show_frame = 0;
/* Nothing more to do. */
return 0;
}
return 1;
}
int vp8dx_receive_compressed_data(VP8D_COMP *pbi, size_t size,
const uint8_t *source, int64_t time_stamp) {
VP8_COMMON *cm = &pbi->common;
int retcode = -1;
(void)size;
(void)source;
pbi->common.error.error_code = VPX_CODEC_OK;
retcode = check_fragments_for_errors(pbi);
if (retcode <= 0) return retcode;
cm->new_fb_idx = get_free_fb(cm);
/* setup reference frames for vp8_decode_frame */
pbi->dec_fb_ref[INTRA_FRAME] = &cm->yv12_fb[cm->new_fb_idx];
pbi->dec_fb_ref[LAST_FRAME] = &cm->yv12_fb[cm->lst_fb_idx];
pbi->dec_fb_ref[GOLDEN_FRAME] = &cm->yv12_fb[cm->gld_fb_idx];
pbi->dec_fb_ref[ALTREF_FRAME] = &cm->yv12_fb[cm->alt_fb_idx];
if (setjmp(pbi->common.error.jmp)) {
/* We do not know if the missing frame(s) was supposed to update
* any of the reference buffers, but we act conservative and
* mark only the last buffer as corrupted.
*/
cm->yv12_fb[cm->lst_fb_idx].corrupted = 1;
if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0) {
cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
}
goto decode_exit;
}
pbi->common.error.setjmp = 1;
retcode = vp8_decode_frame(pbi);
if (retcode < 0) {
if (cm->fb_idx_ref_cnt[cm->new_fb_idx] > 0) {
cm->fb_idx_ref_cnt[cm->new_fb_idx]--;
}
pbi->common.error.error_code = VPX_CODEC_ERROR;
goto decode_exit;
}
if (swap_frame_buffers(cm)) {
pbi->common.error.error_code = VPX_CODEC_ERROR;
goto decode_exit;
}
vpx_clear_system_state();
if (cm->show_frame) {
cm->current_video_frame++;
cm->show_frame_mi = cm->mi;
}
#if CONFIG_ERROR_CONCEALMENT
/* swap the mode infos to storage for future error concealment */
if (pbi->ec_enabled && pbi->common.prev_mi) {
MODE_INFO *tmp = pbi->common.prev_mi;
int row, col;
pbi->common.prev_mi = pbi->common.mi;
pbi->common.mi = tmp;
/* Propagate the segment_ids to the next frame */
for (row = 0; row < pbi->common.mb_rows; ++row) {
for (col = 0; col < pbi->common.mb_cols; ++col) {
const int i = row * pbi->common.mode_info_stride + col;
pbi->common.mi[i].mbmi.segment_id =
pbi->common.prev_mi[i].mbmi.segment_id;
}
}
}
#endif
pbi->ready_for_new_data = 0;
pbi->last_time_stamp = time_stamp;
decode_exit:
pbi->common.error.setjmp = 0;
vpx_clear_system_state();
return retcode;
}
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) {
int ret = -1;
if (pbi->ready_for_new_data == 1) return ret;
/* ie no raw frame to show!!! */
if (pbi->common.show_frame == 0) return ret;
pbi->ready_for_new_data = 1;
*time_stamp = pbi->last_time_stamp;
*time_end_stamp = 0;
#if CONFIG_POSTPROC
ret = vp8_post_proc_frame(&pbi->common, sd, flags);
#else
(void)flags;
if (pbi->common.frame_to_show) {
*sd = *pbi->common.frame_to_show;
sd->y_width = pbi->common.Width;
sd->y_height = pbi->common.Height;
sd->uv_height = pbi->common.Height / 2;
ret = 0;
} else {
ret = -1;
}
#endif /*!CONFIG_POSTPROC*/
vpx_clear_system_state();
return ret;
}
/* This function as written isn't decoder specific, but the encoder has
* much faster ways of computing this, so it's ok for it to live in a
* decode specific file.
*/
int vp8dx_references_buffer(VP8_COMMON *oci, int ref_frame) {
const MODE_INFO *mi = oci->mi;
int mb_row, mb_col;
for (mb_row = 0; mb_row < oci->mb_rows; ++mb_row) {
for (mb_col = 0; mb_col < oci->mb_cols; mb_col++, mi++) {
if (mi->mbmi.ref_frame == ref_frame) return 1;
}
mi++;
}
return 0;
}
int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf) {
/* decoder instance for single thread mode */
fb->pbi[0] = create_decompressor(oxcf);
if (!fb->pbi[0]) return VPX_CODEC_ERROR;
#if CONFIG_MULTITHREAD
if (setjmp(fb->pbi[0]->common.error.jmp)) {
vp8_remove_decoder_instances(fb);
memset(fb->pbi, 0, sizeof(fb->pbi));
vpx_clear_system_state();
return VPX_CODEC_ERROR;
}
fb->pbi[0]->common.error.setjmp = 1;
fb->pbi[0]->max_threads = oxcf->max_threads;
vp8_decoder_create_threads(fb->pbi[0]);
fb->pbi[0]->common.error.setjmp = 0;
#endif
return VPX_CODEC_OK;
}
int vp8_remove_decoder_instances(struct frame_buffers *fb) {
VP8D_COMP *pbi = fb->pbi[0];
if (!pbi) return VPX_CODEC_ERROR;
#if CONFIG_MULTITHREAD
vp8_decoder_remove_threads(pbi);
#endif
/* decoder instance for single thread mode */
remove_decompressor(pbi);
return VPX_CODEC_OK;
}
int vp8dx_get_quantizer(const VP8D_COMP *cpi) {
return cpi->common.base_qindex;
}