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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: vvc decoder plug-in to avcodec. split frames into slices/tiles and send them to vvc_thread for further decoding reorder and wait for the frame decoding to be done and output the frame Features: + Support I, P, B frames + Support 8/10/12 bits, chroma 400, 420, 422, and 444 and range extension + Support VVC new tools like MIP, CCLM, AFFINE, GPM, DMVR, PROF, BDOF, LMCS, ALF + 295 conformace clips passed - Not support RPR, IBC, PALETTE, and other minor features yet Performance: C code FPS on i7-12700 (x86): BQTerrace_1920x1080_60_10_420_22_RA.vvc 77.7 Chimera_8bit_1080P_1000_frames.vvc 174.3 NovosobornayaSquare_1920x1080.bin 163.7 RitualDance_1920x1080_60_10_420_32_LD.266 136.7 RitualDance_1920x1080_60_10_420_37_RA.266 154.3 Tango2_3840x2160_60_10_420_27_LD.266 30.0 Tango2_3840x2160_60_10_420_27_RA.266 29.0 C code FPS on M1 Mac Pro (ARM): BQTerrace_1920x1080_60_10_420_22_RA.vvc 58.7 Chimera_8bit_1080P_1000_frames.vvc 153.3 NovosobornayaSquare_1920x1080.bin 150.3 RitualDance_1920x1080_60_10_420_32_LD.266 105.0 RitualDance_1920x1080_60_10_420_37_RA.266 133.0 Tango2_3840x2160_60_10_420_27_LD.266 21.7 Asm optimizations still working in progress. please check https://github.com/ffvvc/FFmpeg/wiki#performance-data for the latest Contributors(based on code merge order): Nuo Mi Xu Mu frankplow Shaun Loo --- libavcodec/vvc/vvcdec.c | 1025 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 1024 insertions(+), 1 deletion(-) diff --git a/libavcodec/vvc/vvcdec.c b/libavcodec/vvc/vvcdec.c index 8d027af0b9..c85b7fac8c 100644 --- a/libavcodec/vvc/vvcdec.c +++ b/libavcodec/vvc/vvcdec.c @@ -24,32 +24,1055 @@ #include "libavcodec/codec_internal.h" #include "libavcodec/decode.h" -#include "libavcodec/golomb.h" #include "libavcodec/profiles.h" #include "libavcodec/vvc.h" #include "libavutil/cpu.h" #include "vvcdec.h" +#include "vvc_ctu.h" +#include "vvc_data.h" +#include "vvc_refs.h" +#include "vvc_thread.h" + +static int vvc_frame_start(VVCContext *s, VVCFrameContext *fc, SliceContext *sc) +{ + const VVCPH *ph = &fc->ps.ph; + const H266RawSliceHeader *rsh = sc->sh.r; + int ret; + + // 8.3.1 Decoding process for picture order count + if (!s->temporal_id && !ph->r->ph_non_ref_pic_flag && !(IS_RASL(s) || IS_RADL(s))) + s->poc_tid0 = ph->poc; + + if ((ret = ff_vvc_set_new_ref(s, fc, &fc->frame)) < 0) + goto fail; + + if (!IS_IDR(s)) + ff_vvc_bump_frame(s, fc); + + av_frame_unref(fc->output_frame); + + if ((ret = ff_vvc_output_frame(s, fc, fc->output_frame,rsh->sh_no_output_of_prior_pics_flag, 0)) < 0) + goto fail; + + if ((ret = ff_vvc_frame_rpl(s, fc, sc)) < 0) + goto fail; + + if ((ret = ff_vvc_frame_thread_init(fc)) < 0) + goto fail; + return 0; +fail: + if (fc->ref) + ff_vvc_unref_frame(fc, fc->ref, ~0); + fc->ref = NULL; + return ret; +} + +static void ctb_arrays_free(VVCFrameContext *fc) +{ + av_freep(&fc->tab.deblock); + av_freep(&fc->tab.sao); + av_freep(&fc->tab.alf); + av_freep(&fc->tab.slice_idx); + av_freep(&fc->tab.coeffs); + if (fc->tab.ctus) { + for (int i = 0; i < fc->tab.ctu_count; i++) + ff_vvc_ctu_free_cus(fc->tab.ctus + i); + av_freep(&fc->tab.ctus); + } + av_buffer_pool_uninit(&fc->rpl_tab_pool); +} + +static int ctb_arrays_init(VVCFrameContext *fc, const int ctu_count, const int ctu_size) +{ + if (fc->tab.ctu_count != ctu_count || fc->tab.ctu_size != ctu_size) { + ctb_arrays_free(fc); + fc->tab.deblock = av_calloc(ctu_count, sizeof(*fc->tab.deblock)); + fc->tab.sao = av_calloc(ctu_count, sizeof(*fc->tab.sao)); + fc->tab.alf = av_calloc(ctu_count, sizeof(*fc->tab.alf)); + fc->tab.ctus = av_calloc(ctu_count, sizeof(*fc->tab.ctus)); + fc->tab.slice_idx = av_malloc(ctu_count * sizeof(*fc->tab.slice_idx)); + if (!fc->tab.deblock || !fc->tab.sao || !fc->tab.alf || !fc->tab.ctus || !fc->tab.slice_idx ) + return AVERROR(ENOMEM); + fc->tab.coeffs = av_malloc(ctu_count * sizeof(*fc->tab.coeffs) * ctu_size * VVC_MAX_SAMPLE_ARRAYS); + if (!fc->tab.coeffs) + return AVERROR(ENOMEM); + fc->rpl_tab_pool = av_buffer_pool_init(ctu_count * sizeof(RefPicListTab), av_buffer_allocz); + if (!fc->rpl_tab_pool) + return AVERROR(ENOMEM); + } else { + memset(fc->tab.deblock, 0, ctu_count * sizeof(*fc->tab.deblock)); + memset(fc->tab.sao, 0, ctu_count * sizeof(*fc->tab.sao)); + memset(fc->tab.alf, 0, ctu_count * sizeof(*fc->tab.alf)); + for (int i = 0; i < fc->tab.ctu_count; i++) + ff_vvc_ctu_free_cus(fc->tab.ctus + i); + memset(fc->tab.ctus, 0, ctu_count * sizeof(*fc->tab.ctus)); + } + memset(fc->tab.slice_idx, -1, ctu_count * sizeof(*fc->tab.slice_idx)); + + return 0; +} + +static void min_cb_arrays_free(VVCFrameContext *fc) +{ + for (int i = LUMA; i <= CHROMA; i++) { + av_freep(&fc->tab.cb_pos_x[i]); + av_freep(&fc->tab.cb_pos_y[i]); + av_freep(&fc->tab.cb_width[i]); + av_freep(&fc->tab.cb_height[i]); + av_freep(&fc->tab.cqt_depth[i]); + av_freep(&fc->tab.cpm[i]); + av_freep(&fc->tab.cp_mv[i]); + } + + av_freep(&fc->tab.ipm); + av_freep(&fc->tab.imf); + av_freep(&fc->tab.imtf); + av_freep(&fc->tab.imm); + av_freep(&fc->tab.skip); +} + +static int min_cb_arrays_init(VVCFrameContext *fc, const int pic_size_in_min_cb) +{ + if (fc->tab.pic_size_in_min_cb != pic_size_in_min_cb) { + min_cb_arrays_free(fc); + for (int i = LUMA; i <= CHROMA; i++) { + fc->tab.cb_pos_x[i] = av_mallocz(pic_size_in_min_cb * sizeof(int)); + fc->tab.cb_pos_y[i] = av_mallocz(pic_size_in_min_cb * sizeof(int)); + fc->tab.cb_width[i] = av_mallocz(pic_size_in_min_cb); + fc->tab.cb_height[i] = av_mallocz(pic_size_in_min_cb); + fc->tab.cqt_depth[i] = av_mallocz(pic_size_in_min_cb); + if (!fc->tab.cb_pos_x[i] || !fc->tab.cb_pos_y[i] || !fc->tab.cb_width[i] || !fc->tab.cb_height[i] || !fc->tab.cqt_depth[i]) + return AVERROR(ENOMEM); + + fc->tab.cpm[i] = av_mallocz(pic_size_in_min_cb); + fc->tab.cp_mv[i] = av_mallocz(pic_size_in_min_cb * sizeof(Mv) * MAX_CONTROL_POINTS); + if (!fc->tab.cpm[i] || !fc->tab.cp_mv[i]) + return AVERROR(ENOMEM); + } + + fc->tab.ipm = av_mallocz(pic_size_in_min_cb); + fc->tab.imf = av_mallocz(pic_size_in_min_cb); + fc->tab.imtf = av_mallocz(pic_size_in_min_cb); + fc->tab.imm = av_mallocz(pic_size_in_min_cb); + fc->tab.skip = av_mallocz(pic_size_in_min_cb); + if (!fc->tab.ipm || !fc->tab.imf || !fc->tab.imtf || !fc->tab.imm || !fc->tab.skip) + return AVERROR(ENOMEM); + } else { + for (int i = LUMA; i <= CHROMA; i++) { + memset(fc->tab.cb_pos_x[i], 0, pic_size_in_min_cb * sizeof(int)); + memset(fc->tab.cb_pos_y[i], 0, pic_size_in_min_cb * sizeof(int)); + memset(fc->tab.cb_width[i], 0, pic_size_in_min_cb); + memset(fc->tab.cb_height[i], 0, pic_size_in_min_cb); + memset(fc->tab.cqt_depth[i], 0, pic_size_in_min_cb); + memset(fc->tab.cpm[i], 0, pic_size_in_min_cb); + memset(fc->tab.cp_mv[i], 0, pic_size_in_min_cb * sizeof(Mv) * MAX_CONTROL_POINTS); + } + + memset(fc->tab.ipm, 0, pic_size_in_min_cb); + memset(fc->tab.imf, 0, pic_size_in_min_cb); + memset(fc->tab.imtf, 0, pic_size_in_min_cb); + memset(fc->tab.imm, 0, pic_size_in_min_cb); + memset(fc->tab.skip, 0, pic_size_in_min_cb); + } + return 0; +} + +static void min_tu_arrays_free(VVCFrameContext *fc) +{ + for (int i = LUMA; i <= CHROMA; i++) { + av_freep(&fc->tab.tb_pos_x0[i]); + av_freep(&fc->tab.tb_pos_y0[i]); + av_freep(&fc->tab.tb_width[i]); + av_freep(&fc->tab.tb_height[i]); + av_freep(&fc->tab.pcmf[i]); + } + + for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { + av_freep(&fc->tab.qp[i]); + av_freep(&fc->tab.tu_coded_flag[i]); + } + + av_freep(&fc->tab.tu_joint_cbcr_residual_flag); +} + +static int min_tu_arrays_init(VVCFrameContext *fc, const int pic_size_in_min_tu) +{ + if (fc->tab.pic_size_in_min_tu != pic_size_in_min_tu) { + min_tu_arrays_free(fc); + for (int i = LUMA; i <= CHROMA; i++) { + fc->tab.tb_pos_x0[i] = av_mallocz(pic_size_in_min_tu * sizeof(*fc->tab.tb_pos_x0[0])); + fc->tab.tb_pos_y0[i] = av_mallocz(pic_size_in_min_tu * sizeof(*fc->tab.tb_pos_y0[0])) ; + fc->tab.tb_width[i] = av_mallocz(pic_size_in_min_tu); + fc->tab.tb_height[i] = av_mallocz(pic_size_in_min_tu); + fc->tab.pcmf[i] = av_mallocz(pic_size_in_min_tu); + if (!fc->tab.tb_pos_x0[i] || !fc->tab.tb_pos_y0[i] || + !fc->tab.tb_width[i] || !fc->tab.tb_height[i] || !fc->tab.pcmf[i]) + return AVERROR(ENOMEM); + } + + for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { + fc->tab.tu_coded_flag[i] = av_mallocz(pic_size_in_min_tu); + if (!fc->tab.tu_coded_flag[i]) + return AVERROR(ENOMEM); + + fc->tab.qp[i] = av_mallocz(pic_size_in_min_tu); + if (!fc->tab.qp[i]) + return AVERROR(ENOMEM); + } + + fc->tab.tu_joint_cbcr_residual_flag = av_mallocz(pic_size_in_min_tu); + if (!fc->tab.tu_joint_cbcr_residual_flag) + return AVERROR(ENOMEM); + } else { + for (int i = LUMA; i <= CHROMA; i++) { + memset(fc->tab.tb_pos_x0[i], 0, pic_size_in_min_tu * sizeof(*fc->tab.tb_pos_x0[0])); + memset(fc->tab.tb_pos_y0[i], 0, pic_size_in_min_tu * sizeof(*fc->tab.tb_pos_y0[0])) ; + memset(fc->tab.tb_width[i], 0, pic_size_in_min_tu); + memset(fc->tab.tb_height[i], 0, pic_size_in_min_tu); + memset(fc->tab.pcmf[i], 0, pic_size_in_min_tu); + } + + for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { + memset(fc->tab.tu_coded_flag[i], 0, pic_size_in_min_tu); + memset(fc->tab.qp[i], 0, pic_size_in_min_tu); + } + memset(fc->tab.tu_joint_cbcr_residual_flag, 0, pic_size_in_min_tu); + } + return 0; +} + +static void min_pu_arrays_free(VVCFrameContext *fc) +{ + av_freep(&fc->tab.mvf); + av_freep(&fc->tab.msf); + av_freep(&fc->tab.iaf); + av_freep(&fc->tab.mmi); + av_buffer_pool_uninit(&fc->tab_dmvr_mvf_pool); +} + +static int min_pu_arrays_init(VVCFrameContext *fc, const int pic_size_in_min_pu) +{ + if (fc->tab.pic_size_in_min_pu != pic_size_in_min_pu) { + min_pu_arrays_free(fc); + fc->tab.msf = av_mallocz(pic_size_in_min_pu); + fc->tab.iaf = av_mallocz(pic_size_in_min_pu); + fc->tab.mmi = av_mallocz(pic_size_in_min_pu); + fc->tab.mvf = av_mallocz(pic_size_in_min_pu * sizeof(*fc->tab.mvf)); + if (!fc->tab.msf || !fc->tab.iaf || !fc->tab.mmi || !fc->tab.mvf) + return AVERROR(ENOMEM); + fc->tab_dmvr_mvf_pool = av_buffer_pool_init(pic_size_in_min_pu * sizeof(MvField), av_buffer_allocz); + if (!fc->tab_dmvr_mvf_pool) + return AVERROR(ENOMEM); + } else { + memset(fc->tab.msf, 0, pic_size_in_min_pu); + memset(fc->tab.iaf, 0, pic_size_in_min_pu); + memset(fc->tab.mmi, 0, pic_size_in_min_pu); + memset(fc->tab.mvf, 0, pic_size_in_min_pu * sizeof(*fc->tab.mvf)); + } + + return 0; +} + +static void bs_arrays_free(VVCFrameContext *fc) +{ + for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { + av_freep(&fc->tab.horizontal_bs[i]); + av_freep(&fc->tab.vertical_bs[i]); + } + av_freep(&fc->tab.horizontal_q); + av_freep(&fc->tab.horizontal_p); + av_freep(&fc->tab.vertical_p); + av_freep(&fc->tab.vertical_q); +} + +static int bs_arrays_init(VVCFrameContext *fc, const int bs_width, const int bs_height) +{ + if (fc->tab.bs_width != bs_width || fc->tab.bs_height != bs_height) { + bs_arrays_free(fc); + for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { + fc->tab.horizontal_bs[i] = av_calloc(bs_width, bs_height); + fc->tab.vertical_bs[i] = av_calloc(bs_width, bs_height); + if (!fc->tab.horizontal_bs[i] || !fc->tab.vertical_bs[i]) + return AVERROR(ENOMEM); + } + fc->tab.horizontal_q = av_calloc(bs_width, bs_height); + fc->tab.horizontal_p = av_calloc(bs_width, bs_height); + fc->tab.vertical_p = av_calloc(bs_width, bs_height); + fc->tab.vertical_q = av_calloc(bs_width, bs_height); + if (!fc->tab.horizontal_q || !fc->tab.horizontal_p || !fc->tab.vertical_p || !fc->tab.vertical_q) + return AVERROR(ENOMEM); + } else { + for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { + memset(fc->tab.horizontal_bs[i], 0, bs_width * bs_height); + memset(fc->tab.vertical_bs[i], 0, bs_width * bs_height); + } + memset(fc->tab.horizontal_q, 0, bs_width * bs_height); + memset(fc->tab.horizontal_p, 0, bs_width * bs_height); + memset(fc->tab.vertical_p, 0, bs_width * bs_height); + memset(fc->tab.vertical_q, 0, bs_width * bs_height); + } + return 0; +} + +static void pixel_buffer_free(VVCFrameContext *fc) +{ + for (int i = 0; i < VVC_MAX_SAMPLE_ARRAYS; i++) { + av_freep(&fc->tab.sao_pixel_buffer_h[i]); + av_freep(&fc->tab.sao_pixel_buffer_v[i]); + for (int j = 0; j < 2; j++) { + av_freep(&fc->tab.alf_pixel_buffer_h[i][j]); + av_freep(&fc->tab.alf_pixel_buffer_v[i][j]); + } + } +} + +static int pixel_buffer_init(VVCFrameContext *fc, const int width, const int height, + const int ctu_width, const int ctu_height, const int chroma_format_idc, const int ps) +{ + const VVCSPS *sps = fc->ps.sps; + const int c_end = chroma_format_idc ? VVC_MAX_SAMPLE_ARRAYS : 1; + + if (fc->tab.chroma_format_idc != chroma_format_idc || + fc->tab.width != width || fc->tab.height != height || + fc->tab.ctu_width != ctu_width || fc->tab.ctu_height != ctu_height) { + pixel_buffer_free(fc); + for (int c_idx = 0; c_idx < c_end; c_idx++) { + const int w = width >> sps->hshift[c_idx]; + const int h = height >> sps->vshift[c_idx]; + fc->tab.sao_pixel_buffer_h[c_idx] = av_malloc((w * 2 * ctu_height) << ps); + fc->tab.sao_pixel_buffer_v[c_idx] = av_malloc((h * 2 * ctu_width) << ps); + if (!fc->tab.sao_pixel_buffer_h[c_idx] || !fc->tab.sao_pixel_buffer_v[c_idx]) + return AVERROR(ENOMEM); + } + + for (int c_idx = 0; c_idx < c_end; c_idx++) { + const int w = width >> sps->hshift[c_idx]; + const int h = height >> sps->vshift[c_idx]; + const int border_pixels = c_idx ? ALF_BORDER_CHROMA : ALF_BORDER_LUMA; + for (int i = 0; i < 2; i++) { + fc->tab.alf_pixel_buffer_h[c_idx][i] = av_malloc((w * border_pixels * ctu_height) << ps); + fc->tab.alf_pixel_buffer_v[c_idx][i] = av_malloc(h * ALF_PADDING_SIZE * ctu_width); + if (!fc->tab.alf_pixel_buffer_h[c_idx][i] || !fc->tab.alf_pixel_buffer_v[c_idx][i]) + return AVERROR(ENOMEM); + } + } + } + return 0; +} + +static void pic_arrays_free(VVCFrameContext *fc) +{ + ctb_arrays_free(fc); + min_cb_arrays_free(fc); + min_pu_arrays_free(fc); + min_tu_arrays_free(fc); + bs_arrays_free(fc); + av_buffer_pool_uninit(&fc->cu_pool); + av_buffer_pool_uninit(&fc->tu_pool); + pixel_buffer_free(fc); + + for (int i = 0; i < 2; i++) + av_freep(&fc->tab.msm[i]); + av_freep(&fc->tab.ispmf); + + fc->tab.ctu_count = 0; + fc->tab.ctu_size = 0; + fc->tab.pic_size_in_min_cb = 0; + fc->tab.pic_size_in_min_pu = 0; + fc->tab.pic_size_in_min_tu = 0; + fc->tab.width = 0; + fc->tab.height = 0; + fc->tab.ctu_width = 0; + fc->tab.ctu_height = 0; + fc->tab.bs_width = 0; + fc->tab.bs_height = 0; +} + +static int pic_arrays_init(VVCContext *s, VVCFrameContext *fc) +{ + const VVCSPS *sps = fc->ps.sps; + const VVCPPS *pps = fc->ps.pps; + const int ctu_size = 1 << sps->ctb_log2_size_y << sps->ctb_log2_size_y; + const int pic_size_in_min_cb = pps->min_cb_width * pps->min_cb_height; + const int pic_size_in_min_pu = pps->min_pu_width * pps->min_pu_height; + const int pic_size_in_min_tu = pps->min_tu_width * pps->min_tu_height; + const int w32 = AV_CEIL_RSHIFT(pps->width, 5); + const int h32 = AV_CEIL_RSHIFT(pps->height, 5); + const int w64 = AV_CEIL_RSHIFT(pps->width, 6); + const int h64 = AV_CEIL_RSHIFT(pps->height, 6); + const int bs_width = (fc->ps.pps->width >> 2) + 1; + const int bs_height = (fc->ps.pps->height >> 2) + 1; + int ret; + + if ((ret = ctb_arrays_init(fc, pps->ctb_count, ctu_size)) < 0) + goto fail; + + if ((ret = min_cb_arrays_init(fc, pic_size_in_min_cb)) < 0) + goto fail; + + if ((ret = min_pu_arrays_init(fc, pic_size_in_min_pu)) < 0) + goto fail; + + if ((ret = min_tu_arrays_init(fc, pic_size_in_min_tu)) < 0) + goto fail; + + if ((ret = bs_arrays_init(fc, bs_width, bs_height)) < 0) + goto fail; + + if ((ret = pixel_buffer_init(fc, pps->width, pps->height, pps->ctb_width, pps->ctb_height, + sps->r->sps_chroma_format_idc, sps->pixel_shift)) < 0) + goto fail; + + if (AV_CEIL_RSHIFT(fc->tab.width, 5) != w32 || AV_CEIL_RSHIFT(fc->tab.height, 5) != h32) { + for (int i = LUMA; i <= CHROMA; i++) { + av_freep(&fc->tab.msm[i]); + fc->tab.msm[i] = av_calloc(w32, h32); + if (!fc->tab.msm[i]) + goto fail; + } + } else { + for (int i = LUMA; i <= CHROMA; i++) + memset(fc->tab.msm[i], 0, w32 * h32); + } + if (AV_CEIL_RSHIFT(fc->tab.width, 6) != w64 || AV_CEIL_RSHIFT(fc->tab.height, 6) != h64) { + av_freep(&fc->tab.ispmf); + fc->tab.ispmf = av_calloc(w64, h64); + if (!fc->tab.ispmf) + goto fail; + } else { + memset(fc->tab.ispmf, 0, w64 * h64); + } + + if (!fc->cu_pool) { + fc->cu_pool = av_buffer_pool_init(sizeof(CodingUnit), NULL); + if (!fc->cu_pool) + goto fail; + } + + if (!fc->tu_pool) { + fc->tu_pool = av_buffer_pool_init(sizeof(TransformUnit), NULL); + if (!fc->tu_pool) + goto fail; + } + + fc->tab.ctu_count = pps->ctb_count; + fc->tab.ctu_size = ctu_size; + fc->tab.pic_size_in_min_cb = pic_size_in_min_cb; + fc->tab.pic_size_in_min_pu = pic_size_in_min_pu; + fc->tab.pic_size_in_min_tu = pic_size_in_min_tu; + fc->tab.width = pps->width; + fc->tab.height = pps->height; + fc->tab.ctu_width = pps->ctb_width; + fc->tab.ctu_height = pps->ctb_height; + fc->tab.chroma_format_idc = sps->r->sps_chroma_format_idc; + fc->tab.pixel_shift = sps->pixel_shift; + fc->tab.bs_width = bs_width; + fc->tab.bs_height = bs_height; + + return 0; +fail: + pic_arrays_free(fc); + return ret; +} + +static int min_positive(const int idx, const int diff, const int min_diff) +{ + return diff > 0 && (idx < 0 || diff < min_diff); +} + +static int max_negtive(const int idx, const int diff, const int max_diff) +{ + return diff < 0 && (idx < 0 || diff > max_diff); +} + +typedef int (*smvd_find_fxn)(const int idx, const int diff, const int old_diff); + +static int8_t smvd_find(const VVCFrameContext *fc, const SliceContext *sc, int lx, smvd_find_fxn find) +{ + const H266RawSliceHeader *rsh = sc->sh.r; + const RefPicList *rpl = sc->rpl + lx; + const int poc = fc->ref->poc; + int8_t idx = -1; + int old_diff = -1; + for (int i = 0; i < rsh->num_ref_idx_active[lx]; i++) { + if (!rpl->isLongTerm[i]) { + int diff = poc - rpl->list[i]; + if (find(idx, diff, old_diff)) { + idx = i; + old_diff = diff; + } + } + } + return idx; +} + +static void vvc_smvd_ref_idx(const VVCFrameContext *fc, SliceContext *sc) +{ + VVCSH *sh = &sc->sh; + if (IS_B(sh->r)) { + sh->ref_idx_sym[0] = smvd_find(fc, sc, 0, min_positive); + sh->ref_idx_sym[1] = smvd_find(fc, sc, 1, max_negtive); + if (sh->ref_idx_sym[0] == -1 || sh->ref_idx_sym[1] == -1) { + sh->ref_idx_sym[0] = smvd_find(fc, sc, 0, max_negtive); + sh->ref_idx_sym[1] = smvd_find(fc, sc, 1, min_positive); + } + } +} + +static void eps_free(SliceContext *slice) +{ + if (slice->eps) { + for (int j = 0; j < slice->nb_eps; j++) + av_free(slice->eps[j].parse_task); + av_freep(&slice->eps); + } +} + +static void slices_free(VVCFrameContext *fc) +{ + if (fc->slices) { + for (int i = 0; i < fc->nb_slices_allocated; i++) { + SliceContext *slice = fc->slices[i]; + if (slice) { + av_buffer_unref(&slice->sh.rref); + eps_free(slice); + av_free(slice); + } + } + av_freep(&fc->slices); + } + fc->nb_slices_allocated = 0; + fc->nb_slices = 0; +} + +static int slices_realloc(VVCFrameContext *fc) +{ + void *p; + const int size = (fc->nb_slices_allocated + 1) * 3 / 2; + + if (fc->nb_slices < fc->nb_slices_allocated) + return 0; + + p = av_realloc(fc->slices, size * sizeof(*fc->slices)); + if (!p) + return AVERROR(ENOMEM); + + fc->slices = p; + for (int i = fc->nb_slices_allocated; i < size; i++) { + fc->slices[i] = av_calloc(1, sizeof(*fc->slices[0])); + if (!fc->slices[i]) { + for (int j = fc->nb_slices_allocated; j < i; j++) + av_freep(&fc->slices[j]); + return AVERROR(ENOMEM); + } + fc->slices[i]->slice_idx = i; + } + fc->nb_slices_allocated = size; + return 0; +} + +static void ep_init_cabac_decoder(SliceContext *sc, const int index, const H2645NAL *nal, GetBitContext *gb) +{ + const H266RawSliceHeader *rsh = sc->sh.r; + EntryPoint *ep = sc->eps + index; + int size; + + if (index < rsh->num_entry_points) { + int skipped = 0; + int64_t start = (gb->index >> 3); + int64_t end = start + rsh->sh_entry_point_offset_minus1[index] + 1; + while (skipped < nal->skipped_bytes && nal->skipped_bytes_pos[skipped] <= start) { + skipped++; + } + while (skipped < nal->skipped_bytes && nal->skipped_bytes_pos[skipped] < end) { + end--; + skipped++; + } + size = end - start; + } else { + size = get_bits_left(gb) / 8; + } + ff_init_cabac_decoder (&ep->cc, gb->buffer + get_bits_count(gb) / 8, size); + skip_bits(gb, size * 8); +} + +static int init_slice_context(SliceContext *sc, VVCFrameContext *fc, const H2645NAL *nal, const CodedBitstreamUnit *unit) +{ + const VVCSH *sh = &sc->sh; + const H266RawSlice *slice = (const H266RawSlice *)unit->content; + int nb_eps = sh->r->num_entry_points + 1; + int ctu_addr = 0; + GetBitContext gb; + + if (sc->nb_eps != nb_eps) { + eps_free(sc); + sc->eps = av_calloc(nb_eps, sizeof(*sc->eps)); + if (!sc->eps) + return AVERROR(ENOMEM); + sc->nb_eps = nb_eps; + for (int i = 0; i < sc->nb_eps; i++) { + EntryPoint *ep = sc->eps + i; + ep->parse_task = ff_vvc_task_alloc(); + if (!ep->parse_task) + return AVERROR(ENOMEM); + } + } + + init_get_bits8(&gb, slice->data, slice->data_size); + for (int i = 0; i < sc->nb_eps; i++) + { + EntryPoint *ep = sc->eps + i; + ff_vvc_parse_task_init(ep->parse_task, VVC_TASK_TYPE_PARSE, fc, sc, ep, ctu_addr); + ep->ctu_end = (i + 1 == sc->nb_eps ? sh->num_ctus_in_curr_slice : sh->entry_point_start_ctu[i]); + ep_init_cabac_decoder(sc, i, nal, &gb); + if (i + 1 < sc->nb_eps) + ctu_addr = sh->entry_point_start_ctu[i]; + } + + return 0; +} + +static VVCFrameContext* get_frame_context(const VVCContext *s, const VVCFrameContext *fc, const int delta) +{ + const int size = s->nb_fcs; + const int idx = (fc - s->fcs + delta + size) % size; + return s->fcs + idx; +} + +static int vvc_ref_frame(VVCFrameContext *fc, VVCFrame *dst, VVCFrame *src) +{ + int ret; + + ret = ff_thread_ref_frame(&dst->tf, &src->tf); + if (ret < 0) + return ret; + + dst->progress_buf = av_buffer_ref(src->progress_buf); + + dst->tab_dmvr_mvf_buf = av_buffer_ref(src->tab_dmvr_mvf_buf); + if (!dst->tab_dmvr_mvf_buf) + goto fail; + dst->tab_dmvr_mvf = src->tab_dmvr_mvf; + + dst->rpl_tab_buf = av_buffer_ref(src->rpl_tab_buf); + if (!dst->rpl_tab_buf) + goto fail; + dst->rpl_tab = src->rpl_tab; + + dst->rpl_buf = av_buffer_ref(src->rpl_buf); + if (!dst->rpl_buf) + goto fail; + + dst->poc = src->poc; + dst->ctb_count = src->ctb_count; + dst->flags = src->flags; + dst->sequence = src->sequence; + + return 0; +fail: + ff_vvc_unref_frame(fc, dst, ~0); + return AVERROR(ENOMEM); +} + +static av_cold void frame_context_free(VVCFrameContext *fc) +{ + slices_free(fc); + + for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) { + ff_vvc_unref_frame(fc, &fc->DPB[i], ~0); + av_frame_free(&fc->DPB[i].frame); + } + + ff_vvc_frame_thread_free(fc); + pic_arrays_free(fc); + av_frame_free(&fc->output_frame); + ff_vvc_frame_ps_free(&fc->ps); + av_freep(&fc->avctx); +} + +static av_cold int frame_context_init(VVCFrameContext *fc, AVCodecContext *avctx) +{ + + fc->avctx = av_memdup(avctx, sizeof(*avctx)); + if (!fc->avctx) + goto fail; + + fc->output_frame = av_frame_alloc(); + if (!fc->output_frame) + goto fail; + + for (int j = 0; j < FF_ARRAY_ELEMS(fc->DPB); j++) { + fc->DPB[j].frame = av_frame_alloc(); + if (!fc->DPB[j].frame) + goto fail; + fc->DPB[j].tf.f = fc->DPB[j].frame; + } + + return 0; +fail: + return AVERROR(ENOMEM); +} + +static int frame_context_setup(VVCFrameContext *fc, VVCContext *s) +{ + int ret = 0; + + // copy refs from the last frame + if (s->nb_frames && s->nb_fcs > 1) { + VVCFrameContext *prev = get_frame_context(s, fc, -1); + for (int i = 0; i < FF_ARRAY_ELEMS(fc->DPB); i++) { + ff_vvc_unref_frame(fc, &fc->DPB[i], ~0); + if (prev->DPB[i].frame->buf[0]) { + ret = vvc_ref_frame(fc, &fc->DPB[i], &prev->DPB[i]); + if (ret < 0) + goto fail; + } + } + } + + if (IS_IDR(s)) { + s->seq_decode = (s->seq_decode + 1) & 0xff; + ff_vvc_clear_refs(fc); + } + + ret = pic_arrays_init(s, fc); + if (ret < 0) + goto fail; + ff_vvc_dsp_init(&fc->vvcdsp, fc->ps.sps->bit_depth); + ff_videodsp_init(&fc->vdsp, fc->ps.sps->bit_depth); + +fail: + return ret; +} + +static void export_frame_params(VVCFrameContext *fc) +{ + AVCodecContext *c = fc->avctx; + const VVCSPS *sps = fc->ps.sps; + const VVCPPS *pps = fc->ps.pps; + + c->pix_fmt = sps->pix_fmt; + c->coded_width = pps->width; + c->coded_height = pps->height; + c->width = pps->width - pps->r->pps_conf_win_left_offset - pps->r->pps_conf_win_right_offset; + c->height = pps->height - pps->r->pps_conf_win_top_offset - pps->r->pps_conf_win_bottom_offset; +} + +static int decode_slice(VVCContext *s, VVCFrameContext *fc, const H2645NAL *nal, const CodedBitstreamUnit *unit) +{ + int ret = 0; + SliceContext *sc; + VVCSH *sh; + const int is_first_slice = !fc->nb_slices; + + ret = slices_realloc(fc); + if (ret < 0) + return ret; + sc = fc->slices[fc->nb_slices]; + + sh = &sc->sh; + + if (ret < 0) + goto fail; + + s->vcl_unit_type = nal->type; + if (is_first_slice) { + //first slice + ret = ff_vvc_decode_frame_ps(&fc->ps, s); + if (ret < 0) + return ret; + + ret = frame_context_setup(fc, s); + if (ret < 0) + goto fail; + + export_frame_params(fc); + } + + ret = ff_vvc_decode_sh(&sc->sh, &fc->ps, unit); + if (ret < 0) + return ret; + + if (is_first_slice) { + ret = vvc_frame_start(s, fc, sc); + if (ret < 0) + return ret; + } else if (fc->ref) { + if (!IS_I(sh->r)) { + ret = ff_vvc_slice_rpl(s, fc, sc); + if (ret < 0) { + av_log(fc->avctx, AV_LOG_WARNING, + "Error constructing the reference lists for the current slice.\n"); + return ret; + } + } + } else { + av_log(fc->avctx, AV_LOG_ERROR, "First slice in a frame missing.\n"); + return ret; + } + + if (!IS_I(sh->r)) + vvc_smvd_ref_idx(fc, sc); + + ret = init_slice_context(sc, fc, nal, unit); + if (ret < 0) + goto fail; + fc->nb_slices++; + + for (int i = 0; i < (fc->ps.sps->r->sps_entropy_coding_sync_enabled_flag ? 1 : sc->nb_eps); i++) + ff_vvc_frame_add_task(s, sc->eps[i].parse_task); + +fail: + return ret; +} + +static int decode_nal_unit(VVCContext *s, VVCFrameContext *fc, const H2645NAL *nal, const CodedBitstreamUnit *unit) +{ + int ret; + + s->temporal_id = nal->temporal_id; + + switch (unit->type) { + case VVC_VPS_NUT: + case VVC_SPS_NUT: + case VVC_PPS_NUT: + /* vps, sps, sps cached by s->cbc */ + break; + case VVC_TRAIL_NUT: + case VVC_STSA_NUT: + case VVC_RADL_NUT: + case VVC_RASL_NUT: + case VVC_IDR_W_RADL: + case VVC_IDR_N_LP: + case VVC_CRA_NUT: + case VVC_GDR_NUT: + ret = decode_slice(s, fc, nal, unit); + if (ret < 0) + goto fail; + break; + case VVC_PREFIX_APS_NUT: + case VVC_SUFFIX_APS_NUT: + ret = ff_vvc_decode_aps(&s->ps, unit); + if (ret < 0) + goto fail; + break; + default: + av_log(s->avctx, AV_LOG_INFO, + "Skipping NAL unit %d\n", unit->type); + } + + return 0; +fail: + return ret; +} + +static int decode_nal_units(VVCContext *s, VVCFrameContext *fc, AVPacket *avpkt) +{ + const CodedBitstreamH266Context *h266 = (const CodedBitstreamH266Context *)s->cbc->priv_data; + CodedBitstreamFragment *frame = &s->current_frame; + int i, ret = 0; + int eos_at_start = 1; + s->last_eos = s->eos; + s->eos = 0; + + ff_cbs_fragment_reset(frame); + ret = ff_cbs_read_packet(s->cbc, frame, avpkt); + if (ret < 0) { + av_log(s->avctx, AV_LOG_ERROR, "Failed to read packet.\n"); + return ret; + } + /* decode the NAL units */ + for (i = 0; i < frame->nb_units; i++) { + const H2645NAL *nal = h266->common.read_packet.nals + i; + const CodedBitstreamUnit *unit = frame->units + i; + + if (unit->type == VVC_EOB_NUT || unit->type == VVC_EOS_NUT) { + if (eos_at_start) + s->last_eos = 1; + else + s->eos = 1; + } else { + ret = decode_nal_unit(s, fc, nal, unit); + if (ret < 0) { + av_log(s->avctx, AV_LOG_WARNING, + "Error parsing NAL unit #%d.\n", i); + goto fail; + } + } + } + return 0; + +fail: + if (fc->ref) + ff_vvc_report_frame_finished(fc->ref); + return ret; +} + +static int set_output_format(const VVCContext *s, const AVFrame *output) +{ + AVCodecContext *c = s->avctx; + int ret; + + if (output->width != c->width || output->height != c->height) { + if ((ret = ff_set_dimensions(c, output->width, output->height)) < 0) + return ret; + } + c->pix_fmt = output->format; + return 0; +} + +static int wait_delayed_frame(VVCContext *s, AVFrame *output, int *got_output) +{ + VVCFrameContext *delayed = get_frame_context(s, s->fcs, s->nb_frames - s->nb_delayed); + int ret = ff_vvc_frame_wait(s, delayed); + + if (!ret && delayed->output_frame->buf[0]) { + av_frame_move_ref(output, delayed->output_frame); + ret = set_output_format(s, output); + if (!ret) + *got_output = 1; + } + s->nb_delayed--; + + return ret; +} + +static int submit_frame(VVCContext *s, VVCFrameContext *fc, AVFrame *output, int *got_output) +{ + int ret; + s->nb_frames++; + s->nb_delayed++; + if (s->nb_delayed >= s->nb_fcs) { + if ((ret = wait_delayed_frame(s, output, got_output)) < 0) + return ret; + } + return 0; +} static int vvc_decode_frame(AVCodecContext *avctx, AVFrame *output, int *got_output, AVPacket *avpkt) { + VVCContext *s = avctx->priv_data; + VVCFrameContext *fc; + int ret; + + if (!avpkt->size) { + while (s->nb_delayed) { + if ((ret = wait_delayed_frame(s, output, got_output)) < 0) + return ret; + if (*got_output) + return 0; + } + if (s->nb_frames) { + //we still have frames cached in dpb. + VVCFrameContext *last = get_frame_context(s, s->fcs, s->nb_frames - 1); + + ret = ff_vvc_output_frame(s, last, output, 0, 1); + if (ret < 0) + return ret; + if (ret) { + *got_output = ret; + if ((ret = set_output_format(s, output)) < 0) + return ret; + } + } + return 0; + } + + fc = get_frame_context(s, s->fcs, s->nb_frames); + + fc->nb_slices = 0; + fc->decode_order = s->nb_frames; + + ret = decode_nal_units(s, fc, avpkt); + if (ret < 0) + return ret; + + ret = submit_frame(s, fc, output, got_output); + if (ret < 0) + return ret; + return avpkt->size; } static void vvc_decode_flush(AVCodecContext *avctx) { + VVCContext *s = avctx->priv_data; + int got_output; + AVFrame *output = av_frame_alloc(); + + if (output) { + while (s->nb_delayed) { + wait_delayed_frame(s, output, &got_output); + if (got_output) { + av_frame_unref(output); + } + } + av_frame_free(&output); + } } static av_cold int vvc_decode_free(AVCodecContext *avctx) { + VVCContext *s = avctx->priv_data; + int i; + + ff_cbs_fragment_free(&s->current_frame); + vvc_decode_flush(avctx); + av_executor_free(&s->executor); + if (s->fcs) { + for (i = 0; i < s->nb_fcs; i++) + frame_context_free(s->fcs + i); + av_free(s->fcs); + } + ff_vvc_ps_uninit(&s->ps); + ff_cbs_close(&s->cbc); + return 0; } +#define VVC_MAX_FRMAE_DELAY 16 static av_cold int vvc_decode_init(AVCodecContext *avctx) { + VVCContext *s = avctx->priv_data; + int ret; + AVTaskCallbacks callbacks = { + s, + sizeof(VVCLocalContext), + ff_vvc_task_priority_higher, + ff_vvc_task_ready, + ff_vvc_task_run, + }; + + s->avctx = avctx; + + if (ff_cbs_init(&s->cbc, AV_CODEC_ID_VVC, avctx)) + goto fail; + + s->nb_fcs = (avctx->flags & AV_CODEC_FLAG_LOW_DELAY) ? 1 : FFMIN(av_cpu_count(), VVC_MAX_FRMAE_DELAY); + s->fcs = av_calloc(s->nb_fcs, sizeof(*s->fcs)); + if (!s->fcs) + goto fail; + + for (int i = 0; i < s->nb_fcs; i++) { + VVCFrameContext *fc = s->fcs + i; + ret = frame_context_init(fc, avctx); + if (ret < 0) + goto fail; + } + + s->executor = av_executor_alloc(&callbacks, s->nb_fcs); + s->eos = 1; + GDR_SET_RECOVERED(s); + memset(&ff_vvc_default_scale_m, 16, sizeof(ff_vvc_default_scale_m)); + return 0; + +fail: + vvc_decode_free(avctx); + return AVERROR(ENOMEM); } #define OFFSET(x) offsetof(VVCContext, x) -- 2.25.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".