diff options
Diffstat (limited to 'src/encoder')
| -rw-r--r-- | src/encoder/video/vulkan.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/encoder/video/vulkan.c b/src/encoder/video/vulkan.c new file mode 100644 index 0000000..9cf95bd --- /dev/null +++ b/src/encoder/video/vulkan.c @@ -0,0 +1,124 @@ +#include "../../../include/encoder/video/vulkan.h" +#include "../../../include/utils.h" +#include "../../../include/egl.h" + +#include <libavcodec/avcodec.h> +#include <libavutil/hwcontext_vulkan.h> + +typedef struct { + gsr_video_encoder_vulkan_params params; + unsigned int target_textures[2]; + AVBufferRef *device_ctx; +} gsr_video_encoder_vulkan; + +static bool gsr_video_encoder_vulkan_setup_context(gsr_video_encoder_vulkan *self, AVCodecContext *video_codec_context) { + // TODO: Use correct device + if(av_hwdevice_ctx_create(&self->device_ctx, AV_HWDEVICE_TYPE_VULKAN, NULL, NULL, 0) < 0) { + fprintf(stderr, "gsr error: gsr_video_encoder_vulkan_setup_context: failed to create hardware device context\n"); + return false; + } + + AVBufferRef *frame_context = av_hwframe_ctx_alloc(self->device_ctx); + if(!frame_context) { + fprintf(stderr, "gsr error: gsr_video_encoder_vulkan_setup_context: failed to create hwframe context\n"); + av_buffer_unref(&self->device_ctx); + return false; + } + + AVHWFramesContext *hw_frame_context = (AVHWFramesContext*)frame_context->data; + hw_frame_context->width = video_codec_context->width; + hw_frame_context->height = video_codec_context->height; + hw_frame_context->sw_format = self->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? AV_PIX_FMT_P010LE : AV_PIX_FMT_NV12; + hw_frame_context->format = video_codec_context->pix_fmt; + hw_frame_context->device_ctx = (AVHWDeviceContext*)self->device_ctx->data; + + //hw_frame_context->initial_pool_size = 20; + + if (av_hwframe_ctx_init(frame_context) < 0) { + fprintf(stderr, "gsr error: gsr_video_encoder_vulkan_setup_context: failed to initialize hardware frame context " + "(note: ffmpeg version needs to be > 4.0)\n"); + av_buffer_unref(&self->device_ctx); + //av_buffer_unref(&frame_context); + return false; + } + + video_codec_context->hw_frames_ctx = av_buffer_ref(frame_context); + av_buffer_unref(&frame_context); + return true; +} + +static bool gsr_video_encoder_vulkan_setup_textures(gsr_video_encoder_vulkan *self, AVCodecContext *video_codec_context, AVFrame *frame) { + const int res = av_hwframe_get_buffer(video_codec_context->hw_frames_ctx, frame, 0); + if(res < 0) { + fprintf(stderr, "gsr error: gsr_video_encoder_vulkan_setup_textures: av_hwframe_get_buffer failed: %d\n", res); + return false; + } + return true; +} + +static void gsr_video_encoder_vulkan_stop(gsr_video_encoder_vulkan *self, AVCodecContext *video_codec_context); + +static bool gsr_video_encoder_vulkan_start(gsr_video_encoder *encoder, AVCodecContext *video_codec_context, AVFrame *frame) { + gsr_video_encoder_vulkan *self = encoder->priv; + + if(!gsr_video_encoder_vulkan_setup_context(self, video_codec_context)) { + gsr_video_encoder_vulkan_stop(self, video_codec_context); + return false; + } + + if(!gsr_video_encoder_vulkan_setup_textures(self, video_codec_context, frame)) { + gsr_video_encoder_vulkan_stop(self, video_codec_context); + return false; + } + + return true; +} + +void gsr_video_encoder_vulkan_stop(gsr_video_encoder_vulkan *self, AVCodecContext *video_codec_context) { + self->params.egl->glDeleteTextures(2, self->target_textures); + self->target_textures[0] = 0; + self->target_textures[1] = 0; + + if(video_codec_context->hw_frames_ctx) + av_buffer_unref(&video_codec_context->hw_frames_ctx); + if(self->device_ctx) + av_buffer_unref(&self->device_ctx); +} + +static void gsr_video_encoder_vulkan_get_textures(gsr_video_encoder *encoder, unsigned int *textures, int *num_textures, gsr_destination_color *destination_color) { + gsr_video_encoder_vulkan *encoder_vaapi = encoder->priv; + textures[0] = encoder_vaapi->target_textures[0]; + textures[1] = encoder_vaapi->target_textures[1]; + *num_textures = 2; + *destination_color = encoder_vaapi->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? GSR_DESTINATION_COLOR_P010 : GSR_DESTINATION_COLOR_NV12; +} + +static void gsr_video_encoder_vulkan_destroy(gsr_video_encoder *encoder, AVCodecContext *video_codec_context) { + gsr_video_encoder_vulkan_stop(encoder->priv, video_codec_context); + free(encoder->priv); + free(encoder); +} + +gsr_video_encoder* gsr_video_encoder_vulkan_create(const gsr_video_encoder_vulkan_params *params) { + gsr_video_encoder *encoder = calloc(1, sizeof(gsr_video_encoder)); + if(!encoder) + return NULL; + + gsr_video_encoder_vulkan *encoder_vaapi = calloc(1, sizeof(gsr_video_encoder_vulkan)); + if(!encoder_vaapi) { + free(encoder); + return NULL; + } + + encoder_vaapi->params = *params; + + *encoder = (gsr_video_encoder) { + .start = gsr_video_encoder_vulkan_start, + .copy_textures_to_frame = NULL, + .get_textures = gsr_video_encoder_vulkan_get_textures, + .destroy = gsr_video_encoder_vulkan_destroy, + .priv = encoder_vaapi + }; + + return encoder; +} |