diff options
Diffstat (limited to 'libavfilter/vulkan_filter.c')
| -rw-r--r-- | libavfilter/vulkan_filter.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/libavfilter/vulkan_filter.c b/libavfilter/vulkan_filter.c new file mode 100644 index 0000000000..e22541bd23 --- /dev/null +++ b/libavfilter/vulkan_filter.c @@ -0,0 +1,191 @@ +/* + * 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 "vulkan_filter.h" + +static int vulkan_filter_set_device(AVFilterContext *avctx, + AVBufferRef *device) +{ + FFVulkanContext *s = avctx->priv; + + av_buffer_unref(&s->device_ref); + + s->device_ref = av_buffer_ref(device); + if (!s->device_ref) + return AVERROR(ENOMEM); + + s->device = (AVHWDeviceContext*)s->device_ref->data; + s->hwctx = s->device->hwctx; + + return 0; +} + +static int vulkan_filter_set_frames(AVFilterContext *avctx, + AVBufferRef *frames) +{ + FFVulkanContext *s = avctx->priv; + + av_buffer_unref(&s->frames_ref); + + s->frames_ref = av_buffer_ref(frames); + if (!s->frames_ref) + return AVERROR(ENOMEM); + + return 0; +} + +int ff_vk_filter_config_input(AVFilterLink *inlink) +{ + int err; + AVFilterContext *avctx = inlink->dst; + FFVulkanContext *s = avctx->priv; + FFVulkanFunctions *vk = &s->vkfn; + AVHWFramesContext *input_frames; + + if (!inlink->hw_frames_ctx) { + av_log(avctx, AV_LOG_ERROR, "Vulkan filtering requires a " + "hardware frames context on the input.\n"); + return AVERROR(EINVAL); + } + + /* Extract the device and default output format from the first input. */ + if (avctx->inputs[0] != inlink) + return 0; + + input_frames = (AVHWFramesContext *)inlink->hw_frames_ctx->data; + if (input_frames->format != AV_PIX_FMT_VULKAN) + return AVERROR(EINVAL); + + err = vulkan_filter_set_device(avctx, input_frames->device_ref); + if (err < 0) + return err; + err = vulkan_filter_set_frames(avctx, inlink->hw_frames_ctx); + if (err < 0) + return err; + + s->extensions = ff_vk_extensions_to_mask(s->hwctx->enabled_dev_extensions, + s->hwctx->nb_enabled_dev_extensions); + + err = ff_vk_load_functions(s->device, &s->vkfn, s->extensions, 1, 1); + if (err < 0) + return err; + + vk->GetPhysicalDeviceProperties(s->hwctx->phys_dev, &s->props); + vk->GetPhysicalDeviceMemoryProperties(s->hwctx->phys_dev, &s->mprops); + + /* Default output parameters match input parameters. */ + s->input_format = input_frames->sw_format; + if (s->output_format == AV_PIX_FMT_NONE) + s->output_format = input_frames->sw_format; + if (!s->output_width) + s->output_width = inlink->w; + if (!s->output_height) + s->output_height = inlink->h; + + return 0; +} + +int ff_vk_filter_config_output_inplace(AVFilterLink *outlink) +{ + int err; + AVFilterContext *avctx = outlink->src; + FFVulkanContext *s = avctx->priv; + + av_buffer_unref(&outlink->hw_frames_ctx); + + if (!s->device_ref) { + if (!avctx->hw_device_ctx) { + av_log(avctx, AV_LOG_ERROR, "Vulkan filtering requires a " + "Vulkan device.\n"); + return AVERROR(EINVAL); + } + + err = vulkan_filter_set_device(avctx, avctx->hw_device_ctx); + if (err < 0) + return err; + } + + outlink->hw_frames_ctx = av_buffer_ref(s->frames_ref); + if (!outlink->hw_frames_ctx) + return AVERROR(ENOMEM); + + outlink->w = s->output_width; + outlink->h = s->output_height; + + return 0; +} + +int ff_vk_filter_config_output(AVFilterLink *outlink) +{ + int err; + AVFilterContext *avctx = outlink->src; + FFVulkanContext *s = avctx->priv; + AVBufferRef *output_frames_ref; + AVHWFramesContext *output_frames; + + av_buffer_unref(&outlink->hw_frames_ctx); + + if (!s->device_ref) { + if (!avctx->hw_device_ctx) { + av_log(avctx, AV_LOG_ERROR, "Vulkan filtering requires a " + "Vulkan device.\n"); + return AVERROR(EINVAL); + } + + err = vulkan_filter_set_device(avctx, avctx->hw_device_ctx); + if (err < 0) + return err; + } + + output_frames_ref = av_hwframe_ctx_alloc(s->device_ref); + if (!output_frames_ref) { + err = AVERROR(ENOMEM); + goto fail; + } + output_frames = (AVHWFramesContext*)output_frames_ref->data; + + output_frames->format = AV_PIX_FMT_VULKAN; + output_frames->sw_format = s->output_format; + output_frames->width = s->output_width; + output_frames->height = s->output_height; + + err = av_hwframe_ctx_init(output_frames_ref); + if (err < 0) { + av_log(avctx, AV_LOG_ERROR, "Failed to initialise output " + "frames: %d.\n", err); + goto fail; + } + + outlink->hw_frames_ctx = output_frames_ref; + outlink->w = s->output_width; + outlink->h = s->output_height; + + return 0; +fail: + av_buffer_unref(&output_frames_ref); + return err; +} + +int ff_vk_filter_init(AVFilterContext *avctx) +{ + FFVulkanContext *s = avctx->priv; + + s->output_format = AV_PIX_FMT_NONE; + + return 0; +} |