From patchwork Fri Aug 9 17:38:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?UTF-8?q?Juan=20De=20Le=C3=B3n?= X-Patchwork-Id: 14367 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 9726244A38C for ; Fri, 9 Aug 2019 20:40:22 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 6C29568A90F; Fri, 9 Aug 2019 20:40:22 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 40C4B689DC3 for ; Fri, 9 Aug 2019 20:40:15 +0300 (EEST) Received: by mail-pf1-f201.google.com with SMTP id e25so61934693pfn.5 for ; Fri, 09 Aug 2019 10:40:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc:content-transfer-encoding; bh=8r4JIH/lLzrCeAik2siePhtTF6uzgBMoXMwYTKsNdf0=; b=mCydCZBYTGtpWqiP+05ZKd7GQuv22Pk73XZitNPBH+eWCxLoOox4MIM5uZkxLDbIjD wAoXT9fFO4AdBLzhgyvY3AoikxZXaJh2sOzVp3uoDTiv3fWcilp8XYAENQJRTsOWhkBo 8/RfI5qJaYUmcdvpqmi8LZdIF2U7goa75bssMEAk+nVwftDTrqvfniRl/IOt4iWOs+jf 1kEa8Um1mwpWTFrPAYiPs4+qT1o19g2qzp30s2kEyhSzKY/8KBfJGz4dS7MjI4o0qH6k gkv4R1P2Bictgp1hdr9xMqg0MtrgAJiCPiyeoR1p6js4PLSzl5gyIJo3H1hYqKWMhK9P dxNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc:content-transfer-encoding; bh=8r4JIH/lLzrCeAik2siePhtTF6uzgBMoXMwYTKsNdf0=; b=PpJhi7+skbquUJ0vrIeqE8oAa3vYmszq/kymOdK6snnSuimaC90kESJYbw21WvC9Y9 EftyRsZGltzEPv2mfhOvOeLxSRep9vjK+2O4L6+eEzkBP8Z3a0xIEl1TQGM/R3naKquK sjSiM1SmkzbFjlqDX6NxbgnI1DRzyKq+nckbpwAbRgXyKtp+CYTJ+WTY/C+Pwy7Yq4jO 9twOMnfIVhyUOuHuSd/adHOtAehJbNL0tCcdBnlzHwlVhRfFKEoIMfyFMLMuxUlkMtr9 JWb0UIBVM61XyCEl9QvO/X693hTBiqUj9H6991T5JU6nITGl9TspLD5iEtdL1PhuMCQ8 7YCA== X-Gm-Message-State: APjAAAUq5YxWsSRUuimNhrfeQlVhFXDpV1BzJb+hRRV9zuYFgLEjDuOf XXUgaMks3TgGTXo+uOhFKtQbPrhemimuhztJdMWWhAkYK/UDb/c/2kwafEr5m2CuxJxV5Ug1JFV AN5yGM0/hVKykPOydUAOqb9FbrgKFdQFxZ6TC/jWZHIY03tPcd4ZXASP8LdVOe4k= X-Google-Smtp-Source: APXvYqy5AbI7bDoKO0xionVA4VOSx1kjxrklNwGOPvfSRnpk0oOVU7zjgCwOIFL6oDerK+QjGzDVBTodGpI= X-Received: by 2002:a63:89c2:: with SMTP id v185mr18342565pgd.241.1565372412845; Fri, 09 Aug 2019 10:40:12 -0700 (PDT) Date: Fri, 9 Aug 2019 10:38:04 -0700 In-Reply-To: <20190809171513.75481-1-juandl@google.com> Message-Id: <20190809173803.82156-1-juandl@google.com> Mime-Version: 1.0 References: <20190809171513.75481-1-juandl@google.com> X-Mailer: git-send-email 2.23.0.rc1.153.gdeed80330f-goog From: "=?UTF-8?q?Juan=20De=20Le=C3=B3n?=" To: ffmpeg-devel@ffmpeg.org Subject: [FFmpeg-devel] [PATCH] libavutil: AVEncodeInfo data structures and AV_FRAME_DATA_ENCODE_INFO AVFrameSideDataType X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: =?UTF-8?q?Juan=20De=20Le=C3=B3n?= Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" AVEncodeInfoFrame data structure to store as AVFrameSideData of type AV_FRAME_DATA_ENCODE_INFO. The structure stores quantization index for each plane, DC/AC deltas for luma and chroma planes, and an array of AVEncodeInfoBlock struct denoting position, size, and delta quantizer for each block in the frame. Can be extended to support extraction of other block information. Signed-off-by: Juan De León --- fixed a typo in frame.h comment libavutil/Makefile | 2 + libavutil/encode_info.c | 67 +++++++++++++++++++++++++++++++ libavutil/encode_info.h | 87 +++++++++++++++++++++++++++++++++++++++++ libavutil/frame.c | 1 + libavutil/frame.h | 7 ++++ 5 files changed, 164 insertions(+) create mode 100644 libavutil/encode_info.c create mode 100644 libavutil/encode_info.h diff --git a/libavutil/Makefile b/libavutil/Makefile index 57e6e3d7e8..37cfb099e9 100644 --- a/libavutil/Makefile +++ b/libavutil/Makefile @@ -24,6 +24,7 @@ HEADERS = adler32.h \ dict.h \ display.h \ downmix_info.h \ + encode_info.h \ encryption_info.h \ error.h \ eval.h \ @@ -111,6 +112,7 @@ OBJS = adler32.o \ dict.o \ display.o \ downmix_info.o \ + encode_info.o \ encryption_info.o \ error.o \ eval.o \ diff --git a/libavutil/encode_info.c b/libavutil/encode_info.c new file mode 100644 index 0000000000..68c30af4d7 --- /dev/null +++ b/libavutil/encode_info.c @@ -0,0 +1,67 @@ +/* + * 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 "libavutil/encode_info.h" +#include "libavutil/mem.h" + +static int init_encode_info_data(AVEncodeInfoFrame *ptr, int nb_blocks) { + ptr->nb_blocks = nb_blocks; + ptr->dc_q = ptr->ac_q = -1; + ptr->dc_chroma_q = ptr->ac_chroma_q = -1; + + for(int i=0;iplane_q[i] = -1; + + return 0; +} + +AVEncodeInfoFrame *av_encode_info_alloc(int nb_blocks) +{ + AVEncodeInfoFrame *ptr; + size_t size = sizeof(AVEncodeInfoFrame) + sizeof(AVEncodeInfoBlock)*nb_blocks; + + if (nb_blocks < 0 || size >= INT_MAX) + return NULL; + + ptr = av_mallocz(size); + if (!ptr) + return NULL; + + init_encode_info_data(ptr, nb_blocks); + + return ptr; +} + +AVEncodeInfoFrame *av_encode_info_create_side_data(AVFrame *frame, int nb_blocks) +{ + size_t size = sizeof(AVEncodeInfoFrame) + sizeof(AVEncodeInfoBlock)*nb_blocks; + + if (nb_blocks < 0 || size >= INT_MAX) + return NULL; + + AVFrameSideData *sd = av_frame_new_side_data(frame, + AV_FRAME_DATA_ENCODE_INFO, + size); + if (!sd) + return NULL; + + memset(sd->data, 0, size); + init_encode_info_data((AVEncodeInfoFrame*)sd->data, nb_blocks); + + return (AVEncodeInfoFrame*)sd->data; +} diff --git a/libavutil/encode_info.h b/libavutil/encode_info.h new file mode 100644 index 0000000000..cbe8be2891 --- /dev/null +++ b/libavutil/encode_info.h @@ -0,0 +1,87 @@ +/* + * 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 AVUTIL_ENCODE_INFO_H +#define AVUTIL_ENCODE_INFO_H + +#include "libavutil/frame.h" + +/** + * Data structure for extracting block data stored in an array in AVEncodeInfoFrame + */ +typedef struct AVEncodeInfoBlock{ + /** + * Distance in luma pixels from the top-left corner of the visible frame + * to the top-left corner of the block. + * Can be negative if top/right padding is present on the coded frame. + */ + int src_x, src_y; + /** + * Width and height of the block in luma pixels + */ + int w, h; + /** + * Delta quantization index for the block + */ + int delta_q; + + uint8_t reserved[128]; +} AVEncodeInfoBlock; + +/** + * Frame encoding info, used as AVFrameSideData + */ +typedef struct AVEncodeInfoFrame { + /** + * Number of blocks in the array + */ + int nb_blocks; + /** + * Base plane quantizer for the frame, set to -1 when value is unsupported + */ + int plane_q[AV_NUM_DATA_POINTERS]; + /** + * DC/AC quantizer index delta, set to -1 when value is value unsupported. + */ + int ac_q, dc_q; + /** + * DC/AC chroma quantizer index delta, set to -1 when value is value unsupported. + */ + int ac_chroma_q, dc_chroma_q; + + uint8_t reserved[256]; + + AVEncodeInfoBlock blocks[]; +} AVEncodeInfoFrame; + +/** + * Allocates memory for AVEncodeInfoFrame plus an array of + * {@code nb_blocks} AVEncodeInfoBlock and initializes the variables. + * Can be freed with a normal av_free() call. + */ +AVEncodeInfoFrame *av_encode_info_alloc(int nb_blocks); + +/** + * Allocates memory for AVEncodeInfoFrame plus an array of + * {@code nb_blocks} AVEncodeInfoBlock in the given AVFrame {@code frame} + * as AVFrameSideData of type AV_FRAME_DATA_ENCODE_INFO + * and initializes the variables + */ +AVEncodeInfoFrame *av_encode_info_create_side_data(AVFrame *frame, int nb_blocks); + +#endif /* AVUTIL_ENCODE_INFO_H */ diff --git a/libavutil/frame.c b/libavutil/frame.c index dcf1fc3d17..c5ec6d13ca 100644 --- a/libavutil/frame.c +++ b/libavutil/frame.c @@ -842,6 +842,7 @@ const char *av_frame_side_data_name(enum AVFrameSideDataType type) #endif case AV_FRAME_DATA_DYNAMIC_HDR_PLUS: return "HDR Dynamic Metadata SMPTE2094-40 (HDR10+)"; case AV_FRAME_DATA_REGIONS_OF_INTEREST: return "Regions Of Interest"; + case AV_FRAME_DATA_ENCODE_INFO: return "AVEncodeInfo"; } return NULL; } diff --git a/libavutil/frame.h b/libavutil/frame.h index 5d3231e7bb..f2865b6146 100644 --- a/libavutil/frame.h +++ b/libavutil/frame.h @@ -179,6 +179,13 @@ enum AVFrameSideDataType { * array element is implied by AVFrameSideData.size / AVRegionOfInterest.self_size. */ AV_FRAME_DATA_REGIONS_OF_INTEREST, + /** + * Extract block data from supported decoders. The data is stored in + * AVEncodeInfoFrame type, which contains an array of AVEncodeInfoBLock + * described in libavuitl/encode_info.h + * Can be allocated in the frame directly with av_encode_info_create_side_data(). + */ + AV_FRAME_DATA_ENCODE_INFO, }; enum AVActiveFormatDescription {