From 04e6f8a143dc8bcec385e94a653b89c67cbaaca1 Mon Sep 17 00:00:00 2001 From: "Guo, Yejun" Date: Fri, 27 Dec 2019 16:34:15 +0800 Subject: [PATCH] vf_dnn_processing: remove parameter 'fmt' do not request AVFrame's format in vf_ddn_processing with 'fmt', but to add another filter for the format. command examples: ./ffmpeg -i input.jpg -vf format=bgr24,dnn_processing=model=halve_first_channel.model:input=dnn_in:output=dnn_out:dnn_backend=native -y out.native.png ./ffmpeg -i input.jpg -vf format=rgb24,dnn_processing=model=halve_first_channel.model:input=dnn_in:output=dnn_out:dnn_backend=native -y out.native.png Signed-off-by: Guo, Yejun Signed-off-by: Pedro Arthur --- doc/filters.texi | 17 +++--- libavfilter/vf_dnn_processing.c | 95 +++++++++++++++++---------------- 2 files changed, 60 insertions(+), 52 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index fc2d1980773ff..71b69f8eb6e46 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -9070,8 +9070,8 @@ ffmpeg -i INPUT -f lavfi -i nullsrc=hd720,geq='r=128+80*(sin(sqrt((X-W/2)*(X-W/2 @section dnn_processing -Do image processing with deep neural networks. Currently only AVFrame with RGB24 -and BGR24 are supported, more formats will be added later. +Do image processing with deep neural networks. It works together with another filter +which converts the pixel format of the Frame to what the dnn network requires. The filter accepts the following options: @@ -9106,12 +9106,17 @@ Set the input name of the dnn network. @item output Set the output name of the dnn network. -@item fmt -Set the pixel format for the Frame. Allowed values are @code{AV_PIX_FMT_RGB24}, and @code{AV_PIX_FMT_BGR24}. -Default value is @code{AV_PIX_FMT_RGB24}. - @end table +@itemize +@item +Halve the red channle of the frame with format rgb24: +@example +ffmpeg -i input.jpg -vf format=rgb24,dnn_processing=model=halve_first_channel.model:input=dnn_in:output=dnn_out:dnn_backend=native out.native.png +@end example + +@end itemize + @section drawbox Draw a colored box on the input image. diff --git a/libavfilter/vf_dnn_processing.c b/libavfilter/vf_dnn_processing.c index ce976ec3bd810..4a6b900d94f61 100644 --- a/libavfilter/vf_dnn_processing.c +++ b/libavfilter/vf_dnn_processing.c @@ -37,7 +37,6 @@ typedef struct DnnProcessingContext { char *model_filename; DNNBackendType backend_type; - enum AVPixelFormat fmt; char *model_inputname; char *model_outputname; @@ -60,7 +59,6 @@ static const AVOption dnn_processing_options[] = { { "model", "path to model file", OFFSET(model_filename), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS }, { "input", "input name of the model", OFFSET(model_inputname), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS }, { "output", "output name of the model", OFFSET(model_outputname), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS }, - { "fmt", "AVPixelFormat of the frame", OFFSET(fmt), AV_OPT_TYPE_PIXEL_FMT, { .i64=AV_PIX_FMT_RGB24 }, AV_PIX_FMT_NONE, AV_PIX_FMT_NB - 1, FLAGS }, { NULL } }; @@ -69,23 +67,6 @@ AVFILTER_DEFINE_CLASS(dnn_processing); static av_cold int init(AVFilterContext *context) { DnnProcessingContext *ctx = context->priv; - int supported = 0; - // as the first step, only rgb24 and bgr24 are supported - const enum AVPixelFormat supported_pixel_fmts[] = { - AV_PIX_FMT_RGB24, - AV_PIX_FMT_BGR24, - }; - for (int i = 0; i < sizeof(supported_pixel_fmts) / sizeof(enum AVPixelFormat); ++i) { - if (supported_pixel_fmts[i] == ctx->fmt) { - supported = 1; - break; - } - } - if (!supported) { - av_log(context, AV_LOG_ERROR, "pixel fmt %s not supported yet\n", - av_get_pix_fmt_name(ctx->fmt)); - return AVERROR(AVERROR_INVALIDDATA); - } if (!ctx->model_filename) { av_log(ctx, AV_LOG_ERROR, "model file for network is not specified\n"); @@ -121,14 +102,52 @@ static av_cold int init(AVFilterContext *context) static int query_formats(AVFilterContext *context) { - AVFilterFormats *formats; - DnnProcessingContext *ctx = context->priv; - enum AVPixelFormat pixel_fmts[2]; - pixel_fmts[0] = ctx->fmt; - pixel_fmts[1] = AV_PIX_FMT_NONE; + static const enum AVPixelFormat pix_fmts[] = { + AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, + AV_PIX_FMT_NONE + }; + AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); + return ff_set_common_formats(context, fmts_list); +} + +static int check_modelinput_inlink(const DNNData *model_input, const AVFilterLink *inlink) +{ + AVFilterContext *ctx = inlink->dst; + enum AVPixelFormat fmt = inlink->format; + + // the design is to add explicit scale filter before this filter + if (model_input->height != -1 && model_input->height != inlink->h) { + av_log(ctx, AV_LOG_ERROR, "the model requires frame height %d but got %d\n", + model_input->height, inlink->h); + return AVERROR(EIO); + } + if (model_input->width != -1 && model_input->width != inlink->w) { + av_log(ctx, AV_LOG_ERROR, "the model requires frame width %d but got %d\n", + model_input->width, inlink->w); + return AVERROR(EIO); + } - formats = ff_make_format_list(pixel_fmts); - return ff_set_common_formats(context, formats); + switch (fmt) { + case AV_PIX_FMT_RGB24: + case AV_PIX_FMT_BGR24: + if (model_input->channels != 3) { + av_log(ctx, AV_LOG_ERROR, "the frame's input format %s does not match " + "the model input channels %d\n", + av_get_pix_fmt_name(fmt), + model_input->channels); + return AVERROR(EIO); + } + if (model_input->dt != DNN_FLOAT && model_input->dt != DNN_UINT8) { + av_log(ctx, AV_LOG_ERROR, "only support dnn models with input data type as float32 and uint8.\n"); + return AVERROR(EIO); + } + break; + default: + av_log(ctx, AV_LOG_ERROR, "%s not supported.\n", av_get_pix_fmt_name(fmt)); + return AVERROR(EIO); + } + + return 0; } static int config_input(AVFilterLink *inlink) @@ -137,6 +156,7 @@ static int config_input(AVFilterLink *inlink) DnnProcessingContext *ctx = context->priv; DNNReturnType result; DNNData model_input; + int check; result = ctx->model->get_input(ctx->model->model, &model_input, ctx->model_inputname); if (result != DNN_SUCCESS) { @@ -144,26 +164,9 @@ static int config_input(AVFilterLink *inlink) return AVERROR(EIO); } - // the design is to add explicit scale filter before this filter - if (model_input.height != -1 && model_input.height != inlink->h) { - av_log(ctx, AV_LOG_ERROR, "the model requires frame height %d but got %d\n", - model_input.height, inlink->h); - return AVERROR(EIO); - } - if (model_input.width != -1 && model_input.width != inlink->w) { - av_log(ctx, AV_LOG_ERROR, "the model requires frame width %d but got %d\n", - model_input.width, inlink->w); - return AVERROR(EIO); - } - - if (model_input.channels != 3) { - av_log(ctx, AV_LOG_ERROR, "the model requires input channels %d\n", - model_input.channels); - return AVERROR(EIO); - } - if (model_input.dt != DNN_FLOAT && model_input.dt != DNN_UINT8) { - av_log(ctx, AV_LOG_ERROR, "only support dnn models with input data type as float32 and uint8.\n"); - return AVERROR(EIO); + check = check_modelinput_inlink(&model_input, inlink); + if (check != 0) { + return check; } ctx->input.width = inlink->w;