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CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge2.nvidia.com; CAT:NONE; SFS:(13230031)(1800799015)(36860700004)(82310400014)(376005); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Apr 2024 20:08:53.5852 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 42749ca2-93bf-43ed-7d1c-08dc5b2c609b X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000A6730.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7897 Subject: [FFmpeg-devel] [PATCH v2 2/2] avcodec/nvenc: Multi NVENC Split Frame Encoding in HEVC and AV1 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: , From: Diego Felix de Souza via ffmpeg-devel Reply-To: FFmpeg development discussions and patches Cc: ddesouza@nvidia.com 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: From: Diego Felix de Souza When Split frame encoding is enabled, each input frame is partitioned into horizontal strips which are encoded independently and simultaneously by separate NVENCs, usually resulting in increased encoding speed compared to single NVENC encoding. Signed-off-by: Diego Felix de Souza --- libavcodec/nvenc.c | 14 ++++---------- libavcodec/nvenc_av1.c | 2 +- libavcodec/nvenc_hevc.c | 2 +- 3 files changed, 6 insertions(+), 12 deletions(-) diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c index f4d0d21715..469ef3bebd 100644 --- a/libavcodec/nvenc.c +++ b/libavcodec/nvenc.c @@ -1697,18 +1697,12 @@ FF_ENABLE_DEPRECATION_WARNINGS ctx->init_encode_params.enableWeightedPrediction = 1; #ifdef NVENC_HAVE_SPLIT_FRAME_ENCODING - if (avctx->codec->id != AV_CODEC_ID_H264 ) - ctx->init_encode_params.splitEncodeMode = ctx->split_encode_mode; + ctx->init_encode_params.splitEncodeMode = ctx->split_encode_mode; if ((ctx->split_encode_mode != NV_ENC_SPLIT_DISABLE_MODE) && - ((ctx->weighted_pred == 1) && (avctx->codec->id == AV_CODEC_ID_HEVC ))) { - av_log(avctx, AV_LOG_WARNING, "Split encoding is not " - "supported if any of the following features: weighted prediction, " - "alpha layer encoding, subframe mode, output into video memory " - "buffer, picture timing/buffering period SEI message insertion " - "with DX12 interface are enabled in case of HEVC. For AV1, split " - "encoding is not supported when output into video memory buffer " - "is enabled.\n"); + ((ctx->weighted_pred == 1) && (avctx->codec->id == AV_CODEC_ID_HEVC))) + { + av_log(avctx, AV_LOG_WARNING, "Split encoding not supported with weighted prediction enabled.\n"); } #endif diff --git a/libavcodec/nvenc_av1.c b/libavcodec/nvenc_av1.c index 45dc3c26e0..a9e065e3b9 100644 --- a/libavcodec/nvenc_av1.c +++ b/libavcodec/nvenc_av1.c @@ -159,7 +159,7 @@ static const AVOption options[] = { { "3", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LOOKAHEAD_LEVEL_3 }, 0, 0, VE, .unit = "lookahead_level" }, #endif #ifdef NVENC_HAVE_SPLIT_FRAME_ENCODING - { "split_encode_mode", "Specifies the split encoding mode", OFFSET(split_encode_mode), AV_OPT_TYPE_INT, { .i64 = NV_ENC_SPLIT_DISABLE_MODE }, 0, NV_ENC_SPLIT_DISABLE_MODE, VE, .unit = "split_encode_mode" }, + { "split_encode_mode", "Specifies the split encoding mode", OFFSET(split_encode_mode), AV_OPT_TYPE_INT, { .i64 = NV_ENC_SPLIT_AUTO_MODE }, 0, NV_ENC_SPLIT_DISABLE_MODE, VE, .unit = "split_encode_mode" }, { "disabled", "Disabled for all configurations", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_SPLIT_DISABLE_MODE }, 0, 0, VE, .unit = "split_encode_mode" }, { "auto", "Enabled or disabled depending on the preset and tuning info", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_SPLIT_AUTO_MODE }, 0, 0, VE, .unit = "split_encode_mode" }, { "forced", "Enabled with number of horizontal strips selected by the driver", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_SPLIT_AUTO_FORCED_MODE }, 0, 0, VE, .unit = "split_encode_mode" }, diff --git a/libavcodec/nvenc_hevc.c b/libavcodec/nvenc_hevc.c index 1f5e56ecd0..b949cb1bd7 100644 --- a/libavcodec/nvenc_hevc.c +++ b/libavcodec/nvenc_hevc.c @@ -218,7 +218,7 @@ static const AVOption options[] = { { "unidir_b", "Enable use of unidirectional B-Frames.", OFFSET(unidir_b), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, #endif #ifdef NVENC_HAVE_SPLIT_FRAME_ENCODING - { "split_encode_mode", "Specifies the split encoding mode", OFFSET(split_encode_mode), AV_OPT_TYPE_INT, { .i64 = NV_ENC_SPLIT_DISABLE_MODE }, 0, NV_ENC_SPLIT_DISABLE_MODE, VE, .unit = "split_encode_mode" }, + { "split_encode_mode", "Specifies the split encoding mode", OFFSET(split_encode_mode), AV_OPT_TYPE_INT, { .i64 = NV_ENC_SPLIT_AUTO_MODE }, 0, NV_ENC_SPLIT_DISABLE_MODE, VE, .unit = "split_encode_mode" }, { "disabled", "Disabled for all configurations", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_SPLIT_DISABLE_MODE }, 0, 0, VE, .unit = "split_encode_mode" }, { "auto", "Enabled or disabled depending on the preset and tuning info", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_SPLIT_AUTO_MODE }, 0, 0, VE, .unit = "split_encode_mode" }, { "forced", "Enabled with number of horizontal strips selected by the driver", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_SPLIT_AUTO_FORCED_MODE }, 0, 0, VE, .unit = "split_encode_mode" }, -- 2.34.1 ----------------------------------------------------------------------------------- NVIDIA GmbH Wuerselen Amtsgericht Aachen HRB 8361 Managing Directors: Rebecca Peters, Donald Robertson, Janet Hall, Ludwig von Reiche ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. 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