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([89.36.78.10]) by smtp.gmail.com with ESMTPSA id s65-20020a372c44000000b006b5cc25535fsm5066495qkh.99.2022.08.06.07.02.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Aug 2022 07:02:40 -0700 (PDT) From: quietvoid X-Google-Original-From: quietvoid To: ffmpeg-devel@ffmpeg.org Date: Sat, 6 Aug 2022 10:02:32 -0400 Message-Id: <20220806140235.144-2-tcChlisop0@gmail.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220806140235.144-1-tcChlisop0@gmail.com> References: <20220806140235.144-1-tcChlisop0@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH v4 1/4] libavutil/dovi_meta: Add nlq_pivots to AVDOVIDataMapping X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 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: quietvoid Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: The NLQ pivots are not documented but should be present in the header for profile 7 RPU format. It has been verified using Dolby's verification toolkit. Signed-off-by: quietvoid --- libavcodec/dovi_rpu.c | 9 ++++++++- libavutil/dovi_meta.h | 1 + 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/libavcodec/dovi_rpu.c b/libavcodec/dovi_rpu.c index dd38936552..44fb76492d 100644 --- a/libavcodec/dovi_rpu.c +++ b/libavcodec/dovi_rpu.c @@ -117,7 +117,7 @@ int ff_dovi_attach_side_data(DOVIContext *s, AVFrame *frame) /* Copy only the parts of these structs known to us at compiler-time. */ #define COPY(t, a, b, last) memcpy(a, b, offsetof(t, last) + sizeof((b)->last)) COPY(AVDOVIRpuDataHeader, av_dovi_get_header(dovi), &s->header, disable_residual_flag); - COPY(AVDOVIDataMapping, av_dovi_get_mapping(dovi), s->mapping, nlq[2].linear_deadzone_threshold); + COPY(AVDOVIDataMapping, av_dovi_get_mapping(dovi), s->mapping, nlq_pivots); COPY(AVDOVIColorMetadata, av_dovi_get_color(dovi), s->color, source_diagonal); return 0; } @@ -315,7 +315,14 @@ int ff_dovi_rpu_parse(DOVIContext *s, const uint8_t *rpu, size_t rpu_size) } if (use_nlq) { + int nlq_pivot = 0; vdr->mapping.nlq_method_idc = get_bits(gb, 3); + + for (int i = 0; i < 2; i++) { + nlq_pivot += get_bits(gb, hdr->bl_bit_depth); + vdr->mapping.nlq_pivots[i] = av_clip_uint16(nlq_pivot); + } + /** * The patent mentions another legal value, NLQ_MU_LAW, but it's * not documented anywhere how to parse or apply that type of NLQ. diff --git a/libavutil/dovi_meta.h b/libavutil/dovi_meta.h index 3d11e02bff..6afc7b055a 100644 --- a/libavutil/dovi_meta.h +++ b/libavutil/dovi_meta.h @@ -147,6 +147,7 @@ typedef struct AVDOVIDataMapping { uint32_t num_x_partitions; uint32_t num_y_partitions; AVDOVINLQParams nlq[3]; /* per component */ + uint16_t nlq_pivots[2]; /* nlq_pred_pivot_value */ } AVDOVIDataMapping; /** -- 2.37.1 _______________________________________________ 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".