@@ -11,3 +11,4 @@ OBJS-$(CONFIG_VVC_DECODER) += vvc/vvcdsp.o \
vvc/vvc_mvs.o \
vvc/vvc_ps.o \
vvc/vvc_refs.o \
+ vvc/vvc_thread.o \
new file mode 100644
@@ -0,0 +1,828 @@
+/*
+ * VVC thread logic
+ *
+ * Copyright (C) 2023 Nuo Mi
+ *
+ * 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 <stdatomic.h>
+
+#include "libavutil/executor.h"
+#include "libavutil/thread.h"
+
+#include "vvc_thread.h"
+#include "vvc_ctu.h"
+#include "vvc_filter.h"
+#include "vvc_inter.h"
+#include "vvc_intra.h"
+#include "vvc_refs.h"
+
+typedef struct ProgressListener {
+ VVCProgressListener l;
+ struct VVCTask *task;
+ VVCContext *s;
+} ProgressListener;
+
+typedef enum VVCTaskStage {
+ VVC_TASK_STAGE_PARSE,
+ VVC_TASK_STAGE_INTER,
+ VVC_TASK_STAGE_RECON,
+ VVC_TASK_STAGE_LMCS,
+ VVC_TASK_STAGE_DEBLOCK_V,
+ VVC_TASK_STAGE_DEBLOCK_H,
+ VVC_TASK_STAGE_SAO,
+ VVC_TASK_STAGE_ALF,
+ VVC_TASK_STAGE_LAST
+} VVCTaskStage;
+
+typedef struct VVCTask {
+ union {
+ struct VVCTask *next; //for executor debug only
+ AVTask task;
+ };
+
+ VVCTaskStage stage;
+
+ // ctu x, y, and raster scan order
+ int rx, ry, rs;
+ VVCFrameContext *fc;
+
+ ProgressListener col_listener;
+ ProgressListener listener[2][VVC_MAX_REF_ENTRIES];
+
+ // for parse task only
+ SliceContext *sc;
+ EntryPoint *ep;
+ int ctu_idx; //ctu idx in the current slice
+
+ // tasks with target scores met are ready for scheduling
+ atomic_uchar score[VVC_TASK_STAGE_LAST];
+ atomic_uchar target_inter_score;
+} VVCTask;
+
+typedef struct VVCRowThread {
+ atomic_int col_progress[VVC_PROGRESS_LAST];
+} VVCRowThread;
+
+typedef struct VVCFrameThread {
+ // error return for tasks
+ atomic_int ret;
+
+ VVCRowThread *rows;
+ VVCTask *tasks;
+
+ int ctu_size;
+ int ctu_width;
+ int ctu_height;
+ int ctu_count;
+
+ //protected by lock
+ atomic_int nb_scheduled_tasks;
+ atomic_int nb_scheduled_listeners;
+
+ int row_progress[VVC_PROGRESS_LAST];
+
+ AVMutex lock;
+ AVCond cond;
+} VVCFrameThread;
+
+static void add_task(VVCContext *s, VVCTask *t)
+{
+ VVCFrameThread *ft = t->fc->ft;
+
+ atomic_fetch_add(&ft->nb_scheduled_tasks, 1);
+
+ av_executor_execute(s->executor, &t->task);
+}
+
+static void task_init(VVCTask *t, VVCTaskStage stage, VVCFrameContext *fc, const int rx, const int ry)
+{
+ memset(t, 0, sizeof(*t));
+ t->stage = stage;
+ t->fc = fc;
+ t->rx = rx;
+ t->ry = ry;
+ t->rs = ry * fc->ft->ctu_width + rx;
+ for (int i = 0; i < FF_ARRAY_ELEMS(t->score); i++)
+ atomic_store(t->score + i, 0);
+ atomic_store(&t->target_inter_score, 0);
+}
+
+static void task_init_parse(VVCTask *t, SliceContext *sc, EntryPoint *ep, const int ctu_idx)
+{
+ t->sc = sc;
+ t->ep = ep;
+ t->ctu_idx = ctu_idx;
+}
+
+static uint8_t task_add_score(VVCTask *t, const VVCTaskStage stage)
+{
+ return atomic_fetch_add(&t->score[stage], 1) + 1;
+}
+
+static uint8_t task_get_score(VVCTask *t, const VVCTaskStage stage)
+{
+ return atomic_load(&t->score[stage]);
+}
+
+//first row in tile or slice
+static int is_first_row(const VVCFrameContext *fc, const int rx, const int ry)
+{
+ const VVCFrameThread *ft = fc->ft;
+ const VVCPPS *pps = fc->ps.pps;
+
+ if (ry != pps->ctb_to_row_bd[ry]) {
+ const int rs = ry * ft->ctu_width + rx;
+ return fc->tab.slice_idx[rs] != fc->tab.slice_idx[rs - ft->ctu_width];
+ }
+ return 1;
+}
+
+static int task_has_target_score(VVCTask *t, const VVCTaskStage stage, const uint8_t score)
+{
+ // l:left, r:right, t: top, b: bottom
+ static const uint8_t target_score[] =
+ {
+ 2, //VVC_TASK_STAGE_RECON, need l + rt recon
+ 3, //VVC_TASK_STAGE_LMCS, need r + b + rb recon
+ 1, //VVC_TASK_STAGE_DEBLOCK_V, need l deblock v
+ 2, //VVC_TASK_STAGE_DEBLOCK_H, need r deblock v + t deblock h
+ 5, //VVC_TASK_STAGE_SAO, need l + r + lb + b + rb deblock h
+ 8, //VVC_TASK_STAGE_ALF, need sao around the ctu
+ };
+ uint8_t target = 0;
+ VVCFrameContext *fc = t->fc;
+
+ if (stage == VVC_TASK_STAGE_PARSE) {
+ const H266RawSPS *rsps = fc->ps.sps->r;
+ const int wpp = rsps->sps_entropy_coding_sync_enabled_flag && !is_first_row(fc, t->rx, t->ry);
+ target = 2 + wpp - 1; //left parse + colocation + wpp - no previous stage
+ } else if (stage == VVC_TASK_STAGE_INTER) {
+ target = atomic_load(&t->target_inter_score);
+ } else {
+ target = target_score[stage - VVC_TASK_STAGE_RECON];
+ }
+
+ //+1 for previous stage
+ av_assert0(score <= target + 1);
+ return score == target + 1;
+}
+
+static void frame_thread_add_score(VVCContext *s, VVCFrameThread *ft,
+ const int rx, const int ry, const VVCTaskStage stage)
+{
+ VVCTask *t = ft->tasks + ft->ctu_width * ry + rx;
+ uint8_t score;
+
+ if (rx < 0 || rx >= ft->ctu_width || ry < 0 || ry >= ft->ctu_height)
+ return;
+
+ score = task_add_score(t, stage);
+ if (task_has_target_score(t, stage, score)) {
+ av_assert0(s);
+ av_assert0(stage == t->stage);
+ add_task(s, t);
+ }
+}
+
+static void sheduled_done(VVCFrameThread *ft, atomic_int *scheduled)
+{
+ if (atomic_fetch_sub(scheduled, 1) == 1) {
+ ff_mutex_lock(&ft->lock);
+ ff_cond_signal(&ft->cond);
+ ff_mutex_unlock(&ft->lock);
+ }
+}
+
+static void progress_done(VVCProgressListener *_l, const int type)
+{
+ const ProgressListener *l = (ProgressListener *)_l;
+ const VVCTask *t = l->task;
+ VVCFrameThread *ft = t->fc->ft;
+
+ frame_thread_add_score(l->s, ft, t->rx, t->ry, type);
+ sheduled_done(ft, &ft->nb_scheduled_listeners);
+}
+
+static void pixel_done(VVCProgressListener *l)
+{
+ progress_done(l, VVC_TASK_STAGE_INTER);
+}
+
+static void mv_done(VVCProgressListener *l)
+{
+ progress_done(l, VVC_TASK_STAGE_PARSE);
+}
+
+static void listener_init(ProgressListener *l, VVCTask *t, VVCContext *s, const VVCProgress vp, const int y)
+{
+ const int is_inter = vp == VVC_PROGRESS_PIXEL;
+
+ l->task = t;
+ l->s = s;
+ l->l.vp = vp;
+ l->l.y = y;
+ l->l.progress_done = is_inter ? pixel_done : mv_done;
+ if (is_inter)
+ atomic_fetch_add(&t->target_inter_score, 1);
+}
+
+static void add_progress_listener(VVCFrame *ref, ProgressListener *l,
+ VVCTask *t, VVCContext *s, const VVCProgress vp, const int y)
+{
+ VVCFrameThread *ft = t->fc->ft;
+
+ atomic_fetch_add(&ft->nb_scheduled_listeners, 1);
+ listener_init(l, t, s, vp, y);
+ ff_vvc_add_progress_listener(ref, (VVCProgressListener*)l);
+}
+
+static void schedule_next_parse(VVCContext *s, VVCFrameContext *fc, const SliceContext *sc, const VVCTask *t)
+{
+ VVCFrameThread *ft = fc->ft;
+ EntryPoint *ep = t->ep;
+ const VVCSPS *sps = fc->ps.sps;
+
+ if (sps->r->sps_entropy_coding_sync_enabled_flag) {
+ if (t->rx == fc->ps.pps->ctb_to_col_bd[t->rx]) {
+ EntryPoint *next = ep + 1;
+ if (next < sc->eps + sc->nb_eps && !is_first_row(fc, t->rx, t->ry + 1)) {
+ memcpy(next->cabac_state, ep->cabac_state, sizeof(next->cabac_state));
+ ff_vvc_ep_init_stat_coeff(next, sps->bit_depth, sps->r->sps_persistent_rice_adaptation_enabled_flag);
+ }
+ }
+ if (t->ry + 1 < ft->ctu_height && !is_first_row(fc, t->rx, t->ry + 1))
+ frame_thread_add_score(s, ft, t->rx, t->ry + 1, VVC_TASK_STAGE_PARSE);
+ }
+
+ if (t->ctu_idx + 1 < t->ep->ctu_end) {
+ const int next_rs = sc->sh.ctb_addr_in_curr_slice[t->ctu_idx + 1];
+ const int next_rx = next_rs % ft->ctu_width;
+ const int next_ry = next_rs / ft->ctu_width;
+ frame_thread_add_score(s, ft, next_rx, next_ry, VVC_TASK_STAGE_PARSE);
+ }
+}
+
+static void schedule_inter(VVCContext *s, VVCFrameContext *fc, const SliceContext *sc, VVCTask *t, const int rs)
+{
+ const VVCSH *sh = &sc->sh;
+
+ if (!IS_I(sh->r)) {
+ CTU *ctu = fc->tab.ctus + rs;
+ for (int lx = 0; lx < 2; lx++) {
+ for (int i = 0; i < sh->r->num_ref_idx_active[lx]; i++) {
+ const int y = ctu->max_y[lx][i];
+ VVCFrame *ref = sc->rpl[lx].ref[i];
+ if (ref && y >= 0)
+ add_progress_listener(ref, &t->listener[lx][i], t, s, VVC_PROGRESS_PIXEL, y + LUMA_EXTRA_AFTER);
+ }
+ }
+ }
+}
+
+static void parse_task_done(VVCContext *s, VVCFrameContext *fc, const int rx, const int ry)
+{
+ VVCFrameThread *ft = fc->ft;
+ const int rs = ry * ft->ctu_width + rx;
+ const int slice_idx = fc->tab.slice_idx[rs];
+ VVCTask *t = ft->tasks + rs;
+ const SliceContext *sc = fc->slices[slice_idx];
+
+ schedule_next_parse(s, fc, sc, t);
+ schedule_inter(s, fc, sc, t, rs);
+}
+
+static void task_stage_done(const VVCTask *t, VVCContext *s)
+{
+ VVCFrameContext *fc = t->fc;
+ VVCFrameThread *ft = fc->ft;
+ const VVCTaskStage stage = t->stage;
+
+#define ADD(dx, dy, stage) frame_thread_add_score(s, ft, t->rx + (dx), t->ry + (dy), stage)
+
+ //this is a reserve map of ready_score, ordered by zigzag
+ if (stage == VVC_TASK_STAGE_PARSE) {
+ parse_task_done(s, fc, t->rx, t->ry);
+ } else if (stage == VVC_TASK_STAGE_RECON) {
+ ADD(-1, 1, VVC_TASK_STAGE_RECON);
+ ADD( 1, 0, VVC_TASK_STAGE_RECON);
+ ADD(-1, -1, VVC_TASK_STAGE_LMCS);
+ ADD( 0, -1, VVC_TASK_STAGE_LMCS);
+ ADD(-1, 0, VVC_TASK_STAGE_LMCS);
+ } else if (stage == VVC_TASK_STAGE_DEBLOCK_V) {
+ ADD( 1, 0, VVC_TASK_STAGE_DEBLOCK_V);
+ ADD(-1, 0, VVC_TASK_STAGE_DEBLOCK_H);
+ } else if (stage == VVC_TASK_STAGE_DEBLOCK_H) {
+ ADD( 0, 1, VVC_TASK_STAGE_DEBLOCK_H);
+ ADD(-1, -1, VVC_TASK_STAGE_SAO);
+ ADD( 0, -1, VVC_TASK_STAGE_SAO);
+ ADD(-1, 0, VVC_TASK_STAGE_SAO);
+ ADD( 1, -1, VVC_TASK_STAGE_SAO);
+ ADD( 1, 0, VVC_TASK_STAGE_SAO);
+ } else if (stage == VVC_TASK_STAGE_SAO) {
+ ADD(-1, -1, VVC_TASK_STAGE_ALF);
+ ADD( 0, -1, VVC_TASK_STAGE_ALF);
+ ADD(-1, 0, VVC_TASK_STAGE_ALF);
+ ADD( 1, -1, VVC_TASK_STAGE_ALF);
+ ADD(-1, 1, VVC_TASK_STAGE_ALF);
+ ADD( 1, 0, VVC_TASK_STAGE_ALF);
+ ADD( 0, 1, VVC_TASK_STAGE_ALF);
+ ADD( 1, 1, VVC_TASK_STAGE_ALF);
+ }
+}
+
+static int task_is_stage_ready(VVCTask *t, int add)
+{
+ const VVCTaskStage stage = t->stage;
+ uint8_t score;
+ if (stage > VVC_TASK_STAGE_ALF)
+ return 0;
+ score = task_get_score(t, stage) + add;
+ return task_has_target_score(t, stage, score);
+}
+
+static int task_ready(const AVTask *_t, void *user_data)
+{
+ VVCTask *t = (VVCTask*)_t;
+
+ return task_is_stage_ready(t, 0);
+}
+
+#define CHECK(a, b) \
+ do { \
+ if ((a) != (b)) \
+ return (a) < (b); \
+ } while (0)
+
+static int task_priority_higher(const AVTask *_a, const AVTask *_b)
+{
+ const VVCTask *a = (const VVCTask*)_a;
+ const VVCTask *b = (const VVCTask*)_b;
+
+ CHECK(a->fc->decode_order, b->fc->decode_order); //decode order
+
+ if (a->stage == VVC_TASK_STAGE_PARSE || b->stage == VVC_TASK_STAGE_PARSE) {
+ CHECK(a->stage, b->stage);
+ CHECK(a->ry, b->ry);
+ return a->rx < b->rx;
+ }
+
+ CHECK(a->rx + a->ry + a->stage, b->rx + b->ry + b->stage); //zigzag with type
+ CHECK(a->rx + a->ry, b->rx + b->ry); //zigzag
+ return a->ry < b->ry;
+}
+
+static void report_frame_progress(VVCFrameContext *fc,
+ const int ry, const VVCProgress idx)
+{
+ VVCFrameThread *ft = fc->ft;
+ const int ctu_size = ft->ctu_size;
+ int old;
+
+ if (atomic_fetch_add(&ft->rows[ry].col_progress[idx], 1) == ft->ctu_width - 1) {
+ int y;
+ ff_mutex_lock(&ft->lock);
+ y = old = ft->row_progress[idx];
+ while (y < ft->ctu_height && atomic_load(&ft->rows[y].col_progress[idx]) == ft->ctu_width)
+ y++;
+ if (old != y) {
+ const int progress = y == ft->ctu_height ? INT_MAX : y * ctu_size;
+ ft->row_progress[idx] = y;
+ ff_vvc_report_progress(fc->ref, idx, progress);
+ }
+ ff_mutex_unlock(&ft->lock);
+ }
+}
+
+static int run_parse(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ int ret;
+ VVCFrameContext *fc = lc->fc;
+ const int rs = t->rs;
+ const CTU *ctu = fc->tab.ctus + rs;
+
+ lc->sc = t->sc;
+ lc->ep = t->ep;
+
+ ret = ff_vvc_coding_tree_unit(lc, t->ctu_idx, rs, t->rx, t->ry);
+ if (ret < 0)
+ return ret;
+
+ if (!ctu->has_dmvr)
+ report_frame_progress(lc->fc, t->ry, VVC_PROGRESS_MV);
+
+ return 0;
+}
+
+static int run_inter(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ VVCFrameContext *fc = lc->fc;
+ VVCFrameThread *ft = fc->ft;
+ const int rs = t->ry * ft->ctu_width + t->rx;
+ const CTU *ctu = fc->tab.ctus + rs;
+ const int slice_idx = fc->tab.slice_idx[rs];
+
+ if (slice_idx != -1) {
+ lc->sc = fc->slices[slice_idx];
+ ff_vvc_predict_inter(lc, rs);
+ }
+
+ if (ctu->has_dmvr)
+ report_frame_progress(fc, t->ry, VVC_PROGRESS_MV);
+
+ return 0;
+}
+
+static int run_recon(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ VVCFrameContext *fc = lc->fc;
+ const int rs = t->rs;
+ const int slice_idx = fc->tab.slice_idx[rs];
+
+ if (slice_idx != -1) {
+ lc->sc = fc->slices[slice_idx];
+ ff_vvc_reconstruct(lc, rs, t->rx, t->ry);
+ }
+
+ return 0;
+}
+
+static int run_lmcs(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ VVCFrameContext *fc = lc->fc;
+ VVCFrameThread *ft = fc->ft;
+ const int ctu_size = ft->ctu_size;
+ const int x0 = t->rx * ctu_size;
+ const int y0 = t->ry * ctu_size;
+ const int rs = t->ry * ft->ctu_width + t->rx;
+ const int slice_idx = fc->tab.slice_idx[rs];
+
+ if (slice_idx != -1) {
+ lc->sc = fc->slices[slice_idx];
+ ff_vvc_lmcs_filter(lc, x0, y0);
+ }
+
+ return 0;
+}
+
+static int run_deblock_v(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ VVCFrameContext *fc = lc->fc;
+ VVCFrameThread *ft = fc->ft;
+ const int rs = t->ry * ft->ctu_width + t->rx;
+ const int ctb_size = ft->ctu_size;
+ const int x0 = t->rx * ctb_size;
+ const int y0 = t->ry * ctb_size;
+ const int slice_idx = fc->tab.slice_idx[rs];
+
+ if (slice_idx != -1) {
+ lc->sc = fc->slices[slice_idx];
+ if (!lc->sc->sh.r->sh_deblocking_filter_disabled_flag) {
+ ff_vvc_decode_neighbour(lc, x0, y0, t->rx, t->ry, rs);
+ ff_vvc_deblock_vertical(lc, x0, y0);
+ }
+ }
+
+ return 0;
+}
+
+static int run_deblock_h(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ VVCFrameContext *fc = lc->fc;
+ VVCFrameThread *ft = fc->ft;
+ const int ctb_size = ft->ctu_size;
+ const int rs = t->ry * ft->ctu_width + t->rx;
+ const int x0 = t->rx * ctb_size;
+ const int y0 = t->ry * ctb_size;
+ const int slice_idx = fc->tab.slice_idx[rs];
+
+ if (slice_idx != -1) {
+ lc->sc = fc->slices[slice_idx];
+ if (!lc->sc->sh.r->sh_deblocking_filter_disabled_flag) {
+ ff_vvc_decode_neighbour(lc, x0, y0, t->rx, t->ry, rs);
+ ff_vvc_deblock_horizontal(lc, x0, y0);
+ }
+ if (fc->ps.sps->r->sps_sao_enabled_flag)
+ ff_vvc_sao_copy_ctb_to_hv(lc, t->rx, t->ry, t->ry == ft->ctu_height - 1);
+ }
+
+ return 0;
+}
+
+static int run_sao(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ VVCFrameContext *fc = lc->fc;
+ VVCFrameThread *ft = fc->ft;
+ const int rs = t->ry * fc->ps.pps->ctb_width + t->rx;
+ const int ctb_size = ft->ctu_size;
+ const int x0 = t->rx * ctb_size;
+ const int y0 = t->ry * ctb_size;
+
+ if (fc->ps.sps->r->sps_sao_enabled_flag) {
+ ff_vvc_decode_neighbour(lc, x0, y0, t->rx, t->ry, rs);
+ ff_vvc_sao_filter(lc, x0, y0);
+ }
+
+ if (fc->ps.sps->r->sps_alf_enabled_flag)
+ ff_vvc_alf_copy_ctu_to_hv(lc, x0, y0);
+
+ return 0;
+}
+
+static int run_alf(VVCContext *s, VVCLocalContext *lc, VVCTask *t)
+{
+ VVCFrameContext *fc = lc->fc;
+ VVCFrameThread *ft = fc->ft;
+ const int ctu_size = ft->ctu_size;
+ const int x0 = t->rx * ctu_size;
+ const int y0 = t->ry * ctu_size;
+
+ if (fc->ps.sps->r->sps_alf_enabled_flag) {
+ const int slice_idx = CTB(fc->tab.slice_idx, t->rx, t->ry);
+ if (slice_idx != -1) {
+ lc->sc = fc->slices[slice_idx];
+ ff_vvc_decode_neighbour(lc, x0, y0, t->rx, t->ry, t->rs);
+ ff_vvc_alf_filter(lc, x0, y0);
+ }
+ }
+ report_frame_progress(fc, t->ry, VVC_PROGRESS_PIXEL);
+
+ return 0;
+}
+
+#define VVC_THREAD_DEBUG
+#ifdef VVC_THREAD_DEBUG
+const static char* task_name[] = {
+ "P",
+ "I",
+ "R",
+ "L",
+ "V",
+ "H",
+ "S",
+ "A"
+};
+#endif
+
+typedef int (*run_func)(VVCContext *s, VVCLocalContext *lc, VVCTask *t);
+
+static void task_run_stage(VVCTask *t, VVCContext *s, VVCLocalContext *lc)
+{
+ int ret;
+ VVCFrameContext *fc = t->fc;
+ VVCFrameThread *ft = fc->ft;
+ const VVCTaskStage stage = t->stage;
+ run_func run[] = {
+ run_parse,
+ run_inter,
+ run_recon,
+ run_lmcs,
+ run_deblock_v,
+ run_deblock_h,
+ run_sao,
+ run_alf,
+ };
+
+#ifdef VVC_THREAD_DEBUG
+ av_log(s->avctx, AV_LOG_DEBUG, "frame %5d, %s(%3d, %3d)\r\n", (int)t->fc->decode_order, task_name[stage], t->rx, t->ry);
+#endif
+
+ if (!atomic_load(&ft->ret)) {
+ if ((ret = run[stage](s, lc, t)) < 0) {
+#ifdef COMPAT_ATOMICS_WIN32_STDATOMIC_H
+ intptr_t zero = 0;
+#else
+ int zero = 0;
+#endif
+ atomic_compare_exchange_strong(&ft->ret, &zero, ret);
+ av_log(s->avctx, AV_LOG_ERROR,
+ "frame %5d, %s(%3d, %3d) failed with %d\r\n",
+ (int)fc->decode_order, task_name[stage], t->rx, t->ry, ret);
+ }
+ }
+
+ task_stage_done(t, s);
+ return;
+}
+
+static int task_run(AVTask *_t, void *local_context, void *user_data)
+{
+ VVCTask *t = (VVCTask*)_t;
+ VVCContext *s = (VVCContext *)user_data;
+ VVCLocalContext *lc = local_context;
+ VVCFrameThread *ft = t->fc->ft;
+
+ lc->fc = t->fc;
+
+ do {
+ task_run_stage(t, s, lc);
+ t->stage++;
+ } while (task_is_stage_ready(t, 1));
+
+ if (t->stage != VVC_TASK_STAGE_LAST)
+ frame_thread_add_score(s, ft, t->rx, t->ry, t->stage);
+
+ sheduled_done(ft, &ft->nb_scheduled_tasks);
+
+ return 0;
+}
+
+AVExecutor* ff_vvc_executor_alloc(VVCContext *s, const int thread_count)
+{
+ AVTaskCallbacks callbacks = {
+ s,
+ sizeof(VVCLocalContext),
+ task_priority_higher,
+ task_ready,
+ task_run,
+ };
+ return av_executor_alloc(&callbacks, thread_count);
+}
+
+void ff_vvc_executor_free(AVExecutor **e)
+{
+ av_executor_free(e);
+}
+
+void ff_vvc_frame_thread_free(VVCFrameContext *fc)
+{
+ VVCFrameThread *ft = fc->ft;
+
+ if (!ft)
+ return;
+
+ ff_mutex_destroy(&ft->lock);
+ ff_cond_destroy(&ft->cond);
+ av_freep(&ft->rows);
+ av_freep(&ft->tasks);
+ av_freep(&ft);
+}
+
+static void frame_thread_init_score(VVCFrameContext *fc)
+{
+ const VVCFrameThread *ft = fc->ft;
+ VVCTask task;
+
+ task_init(&task, VVC_TASK_STAGE_RECON, fc, 0, 0);
+
+ for (int i = VVC_TASK_STAGE_RECON; i < VVC_TASK_STAGE_LAST; i++) {
+ task.stage = i;
+
+ for (task.rx = -1; task.rx <= ft->ctu_width; task.rx++) {
+ task.ry = -1; //top
+ task_stage_done(&task, NULL);
+ task.ry = ft->ctu_height; //bottom
+ task_stage_done(&task, NULL);
+ }
+
+ for (task.ry = 0; task.ry < ft->ctu_height; task.ry++) {
+ task.rx = -1; //left
+ task_stage_done(&task, NULL);
+ task.rx = ft->ctu_width; //right
+ task_stage_done(&task, NULL);
+ }
+ }
+}
+
+int ff_vvc_frame_thread_init(VVCFrameContext *fc)
+{
+ const VVCSPS *sps = fc->ps.sps;
+ const VVCPPS *pps = fc->ps.pps;
+ VVCFrameThread *ft = fc->ft;
+ int ret;
+
+ if (!ft || ft->ctu_width != pps->ctb_width ||
+ ft->ctu_height != pps->ctb_height ||
+ ft->ctu_size != sps->ctb_size_y) {
+
+ ff_vvc_frame_thread_free(fc);
+ ft = av_calloc(1, sizeof(*fc->ft));
+ if (!ft)
+ return AVERROR(ENOMEM);
+
+ ft->ctu_width = fc->ps.pps->ctb_width;
+ ft->ctu_height = fc->ps.pps->ctb_height;
+ ft->ctu_count = fc->ps.pps->ctb_count;
+ ft->ctu_size = fc->ps.sps->ctb_size_y;
+
+ ft->rows = av_calloc(ft->ctu_height, sizeof(*ft->rows));
+ if (!ft->rows)
+ goto fail;
+
+ ft->tasks = av_malloc(ft->ctu_count * sizeof(*ft->tasks));
+ if (!ft->tasks)
+ goto fail;
+
+ if ((ret = ff_cond_init(&ft->cond, NULL)))
+ goto fail;
+
+ if ((ret = ff_mutex_init(&ft->lock, NULL))) {
+ ff_cond_destroy(&ft->cond);
+ goto fail;
+ }
+ }
+ fc->ft = ft;
+ ft->ret = 0;
+ for (int y = 0; y < ft->ctu_height; y++) {
+ VVCRowThread *row = ft->rows + y;
+ memset(row->col_progress, 0, sizeof(row->col_progress));
+ }
+
+ for (int rs = 0; rs < ft->ctu_count; rs++) {
+ VVCTask *t = ft->tasks + rs;
+ task_init(t, VVC_TASK_STAGE_PARSE, fc, rs % ft->ctu_width, rs / ft->ctu_width);
+ }
+
+ memset(&ft->row_progress[0], 0, sizeof(ft->row_progress));
+
+ frame_thread_init_score(fc);
+
+ return 0;
+
+fail:
+ if (ft) {
+ av_freep(&ft->rows);
+ av_freep(&ft->tasks);
+ av_freep(&ft);
+ }
+
+ return AVERROR(ENOMEM);
+}
+
+static void check_colocation(VVCContext *s, VVCTask *t)
+{
+ const VVCFrameContext *fc = t->fc;
+
+ if (fc->ps.ph.r->ph_temporal_mvp_enabled_flag || fc->ps.sps->r->sps_sbtmvp_enabled_flag) {
+ VVCFrame *col = fc->ref->collocated_ref;
+ const int first_col = t->rx == fc->ps.pps->ctb_to_col_bd[t->rx];
+ if (col && first_col) {
+ //we depend on bottom and right boundary, do not - 1 for y
+ const int y = (t->ry << fc->ps.sps->ctb_log2_size_y);
+ add_progress_listener(col, &t->col_listener, t, s, VVC_PROGRESS_MV, y);
+ return;
+ }
+ }
+ frame_thread_add_score(s, fc->ft, t->rx, t->ry, VVC_TASK_STAGE_PARSE);
+}
+
+static void submit_entry_point(VVCContext *s, VVCFrameThread *ft, SliceContext *sc, EntryPoint *ep)
+{
+ const int rs = sc->sh.ctb_addr_in_curr_slice[ep->ctu_start];
+ VVCTask *t = ft->tasks + rs;
+
+ frame_thread_add_score(s, ft, t->rx, t->ry, VVC_TASK_STAGE_PARSE);
+}
+
+void ff_vvc_frame_submit(VVCContext *s, VVCFrameContext *fc)
+{
+ VVCFrameThread *ft = fc->ft;
+
+ for (int i = 0; i < fc->nb_slices; i++) {
+ SliceContext *sc = fc->slices[i];
+ for (int j = 0; j < sc->nb_eps; j++) {
+ EntryPoint *ep = sc->eps + j;
+ for (int k = ep->ctu_start; k < ep->ctu_end; k++) {
+ const int rs = sc->sh.ctb_addr_in_curr_slice[k];
+ VVCTask *t = ft->tasks + rs;
+
+ task_init_parse(t, sc, ep, k);
+ check_colocation(s, t);
+ }
+ submit_entry_point(s, ft, sc, ep);
+ }
+ }
+}
+
+int ff_vvc_frame_wait(VVCContext *s, VVCFrameContext *fc)
+{
+ VVCFrameThread *ft = fc->ft;
+
+ ff_mutex_lock(&ft->lock);
+
+ while (atomic_load(&ft->nb_scheduled_tasks) || atomic_load(&ft->nb_scheduled_listeners))
+ ff_cond_wait(&ft->cond, &ft->lock);
+
+ ff_mutex_unlock(&ft->lock);
+ ff_vvc_report_frame_finished(fc->ref);
+
+#ifdef VVC_THREAD_DEBUG
+ av_log(s->avctx, AV_LOG_DEBUG, "frame %5d done\r\n", (int)fc->decode_order);
+#endif
+ return ft->ret;
+}
new file mode 100644
@@ -0,0 +1,36 @@
+/*
+ * VVC thread logic
+ *
+ * Copyright (C) 2023 Nuo Mi
+ *
+ * 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
+ */
+
+#ifndef AVCODEC_VVC_VVC_THREAD_H
+#define AVCODEC_VVC_VVC_THREAD_H
+
+#include "vvcdec.h"
+
+struct AVExecutor* ff_vvc_executor_alloc(VVCContext *s, int thread_count);
+void ff_vvc_executor_free(struct AVExecutor **e);
+
+int ff_vvc_frame_thread_init(VVCFrameContext *fc);
+void ff_vvc_frame_thread_free(VVCFrameContext *fc);
+void ff_vvc_frame_submit(VVCContext *s, VVCFrameContext *fc);
+int ff_vvc_frame_wait(VVCContext *s, VVCFrameContext *fc);
+
+#endif // AVCODEC_VVC_VVC_THREAD_H