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author | Derek Buitenhuis <derek.buitenhuis@gmail.com> | 2016-04-18 15:22:24 +0100 |
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committer | Derek Buitenhuis <derek.buitenhuis@gmail.com> | 2016-04-18 15:22:24 +0100 |
commit | 34245eccaf99885e12259c1de00a3af3acfed45a (patch) | |
tree | 3f1bca29d56bc74b784c3ee118c62339447a5f8d /libavfilter/vf_scale_vaapi.c | |
parent | 528af33b6f4595f6d77da47eca7e9a5dcda8c84d (diff) | |
parent | 98114d70e48caf871b0fe9b8e5bf8ebd989b845d (diff) | |
download | ffmpeg-34245eccaf99885e12259c1de00a3af3acfed45a.tar.gz |
Merge commit '98114d70e48caf871b0fe9b8e5bf8ebd989b845d'
* commit '98114d70e48caf871b0fe9b8e5bf8ebd989b845d':
lavf: VAAPI scale filter
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Diffstat (limited to 'libavfilter/vf_scale_vaapi.c')
-rw-r--r-- | libavfilter/vf_scale_vaapi.c | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/libavfilter/vf_scale_vaapi.c b/libavfilter/vf_scale_vaapi.c new file mode 100644 index 0000000000..f7eb89182e --- /dev/null +++ b/libavfilter/vf_scale_vaapi.c @@ -0,0 +1,460 @@ +/* + * 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 <string.h> + +#include <va/va.h> +#include <va/va_vpp.h> + +#include "libavutil/avassert.h" +#include "libavutil/hwcontext.h" +#include "libavutil/hwcontext_vaapi.h" +#include "libavutil/mem.h" +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" + +#include "avfilter.h" +#include "formats.h" +#include "internal.h" + +typedef struct ScaleVAAPIContext { + const AVClass *class; + + AVVAAPIDeviceContext *hwctx; + AVBufferRef *device_ref; + + int valid_ids; + VAConfigID va_config; + VAContextID va_context; + + AVBufferRef *input_frames_ref; + AVHWFramesContext *input_frames; + + AVBufferRef *output_frames_ref; + AVHWFramesContext *output_frames; + + char *output_format_string; + enum AVPixelFormat output_format; + int output_width; + int output_height; + +} ScaleVAAPIContext; + + +static int scale_vaapi_query_formats(AVFilterContext *avctx) +{ + enum AVPixelFormat pix_fmts[] = { + AV_PIX_FMT_VAAPI, AV_PIX_FMT_NONE, + }; + + ff_formats_ref(ff_make_format_list(pix_fmts), + &avctx->inputs[0]->out_formats); + ff_formats_ref(ff_make_format_list(pix_fmts), + &avctx->outputs[0]->in_formats); + + return 0; +} + +static int scale_vaapi_pipeline_uninit(ScaleVAAPIContext *ctx) +{ + if (ctx->va_context != VA_INVALID_ID) { + vaDestroyContext(ctx->hwctx->display, ctx->va_context); + ctx->va_context = VA_INVALID_ID; + } + + if (ctx->va_config != VA_INVALID_ID) { + vaDestroyConfig(ctx->hwctx->display, ctx->va_config); + ctx->va_config = VA_INVALID_ID; + } + + av_buffer_unref(&ctx->output_frames_ref); + av_buffer_unref(&ctx->device_ref); + ctx->hwctx = 0; + + return 0; +} + +static int scale_vaapi_config_input(AVFilterLink *inlink) +{ + AVFilterContext *avctx = inlink->dst; + ScaleVAAPIContext *ctx = avctx->priv; + + scale_vaapi_pipeline_uninit(ctx); + + if (!inlink->hw_frames_ctx) { + av_log(avctx, AV_LOG_ERROR, "A hardware frames reference is " + "required to associate the processing device.\n"); + return AVERROR(EINVAL); + } + + ctx->input_frames_ref = av_buffer_ref(inlink->hw_frames_ctx); + ctx->input_frames = (AVHWFramesContext*)ctx->input_frames_ref->data; + + return 0; +} + +static int scale_vaapi_config_output(AVFilterLink *outlink) +{ + AVFilterContext *avctx = outlink->src; + ScaleVAAPIContext *ctx = avctx->priv; + AVVAAPIHWConfig *hwconfig = NULL; + AVHWFramesConstraints *constraints = NULL; + AVVAAPIFramesContext *va_frames; + VAStatus vas; + int err, i; + + scale_vaapi_pipeline_uninit(ctx); + + ctx->device_ref = av_buffer_ref(ctx->input_frames->device_ref); + ctx->hwctx = ((AVHWDeviceContext*)ctx->device_ref->data)->hwctx; + + av_assert0(ctx->va_config == VA_INVALID_ID); + vas = vaCreateConfig(ctx->hwctx->display, VAProfileNone, + VAEntrypointVideoProc, 0, 0, &ctx->va_config); + if (vas != VA_STATUS_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "Failed to create processing pipeline " + "config: %d (%s).\n", vas, vaErrorStr(vas)); + err = AVERROR(EIO); + goto fail; + } + + hwconfig = av_hwdevice_hwconfig_alloc(ctx->device_ref); + if (!hwconfig) { + err = AVERROR(ENOMEM); + goto fail; + } + hwconfig->config_id = ctx->va_config; + + constraints = av_hwdevice_get_hwframe_constraints(ctx->device_ref, + hwconfig); + if (!constraints) { + err = AVERROR(ENOMEM); + goto fail; + } + + if (ctx->output_format == AV_PIX_FMT_NONE) + ctx->output_format = ctx->input_frames->sw_format; + if (constraints->valid_sw_formats) { + for (i = 0; constraints->valid_sw_formats[i] != AV_PIX_FMT_NONE; i++) { + if (ctx->output_format == constraints->valid_sw_formats[i]) + break; + } + if (constraints->valid_sw_formats[i] == AV_PIX_FMT_NONE) { + av_log(ctx, AV_LOG_ERROR, "Hardware does not support output " + "format %s.\n", av_get_pix_fmt_name(ctx->output_format)); + err = AVERROR(EINVAL); + goto fail; + } + } + + if (ctx->output_width < constraints->min_width || + ctx->output_height < constraints->min_height || + ctx->output_width > constraints->max_width || + ctx->output_height > constraints->max_height) { + av_log(ctx, AV_LOG_ERROR, "Hardware does not support scaling to " + "size %dx%d (constraints: width %d-%d height %d-%d).\n", + ctx->output_width, ctx->output_height, + constraints->min_width, constraints->max_width, + constraints->min_height, constraints->max_height); + err = AVERROR(EINVAL); + goto fail; + } + + ctx->output_frames_ref = av_hwframe_ctx_alloc(ctx->device_ref); + if (!ctx->output_frames_ref) { + av_log(ctx, AV_LOG_ERROR, "Failed to create HW frame context " + "for output.\n"); + err = AVERROR(ENOMEM); + goto fail; + } + + ctx->output_frames = (AVHWFramesContext*)ctx->output_frames_ref->data; + + ctx->output_frames->format = AV_PIX_FMT_VAAPI; + ctx->output_frames->sw_format = ctx->output_format; + ctx->output_frames->width = ctx->output_width; + ctx->output_frames->height = ctx->output_height; + + // The number of output frames we need is determined by what follows + // the filter. If it's an encoder with complex frame reference + // structures then this could be very high. + ctx->output_frames->initial_pool_size = 10; + + err = av_hwframe_ctx_init(ctx->output_frames_ref); + if (err < 0) { + av_log(ctx, AV_LOG_ERROR, "Failed to initialise VAAPI frame " + "context for output: %d\n", err); + goto fail; + } + + va_frames = ctx->output_frames->hwctx; + + av_assert0(ctx->va_context == VA_INVALID_ID); + vas = vaCreateContext(ctx->hwctx->display, ctx->va_config, + ctx->output_width, ctx->output_height, + VA_PROGRESSIVE, + va_frames->surface_ids, va_frames->nb_surfaces, + &ctx->va_context); + if (vas != VA_STATUS_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "Failed to create processing pipeline " + "context: %d (%s).\n", vas, vaErrorStr(vas)); + return AVERROR(EIO); + } + + outlink->w = ctx->output_width; + outlink->h = ctx->output_height; + + outlink->hw_frames_ctx = av_buffer_ref(ctx->output_frames_ref); + if (!outlink->hw_frames_ctx) { + err = AVERROR(ENOMEM); + goto fail; + } + + av_freep(&hwconfig); + av_hwframe_constraints_free(&constraints); + return 0; + +fail: + av_buffer_unref(&ctx->output_frames_ref); + av_freep(&hwconfig); + av_hwframe_constraints_free(&constraints); + return err; +} + +static int vaapi_proc_colour_standard(enum AVColorSpace av_cs) +{ + switch(av_cs) { +#define CS(av, va) case AVCOL_SPC_ ## av: return VAProcColorStandard ## va; + CS(BT709, BT709); + CS(BT470BG, BT601); + CS(SMPTE170M, SMPTE170M); + CS(SMPTE240M, SMPTE240M); +#undef CS + default: + return VAProcColorStandardNone; + } +} + +static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame) +{ + AVFilterContext *avctx = inlink->dst; + AVFilterLink *outlink = avctx->outputs[0]; + ScaleVAAPIContext *ctx = avctx->priv; + AVFrame *output_frame = NULL; + VASurfaceID input_surface, output_surface; + VAProcPipelineParameterBuffer params; + VABufferID params_id; + VAStatus vas; + int err; + + av_log(ctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n", + av_get_pix_fmt_name(input_frame->format), + input_frame->width, input_frame->height, input_frame->pts); + + if (ctx->va_context == VA_INVALID_ID) + return AVERROR(EINVAL); + + input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3]; + av_log(ctx, AV_LOG_DEBUG, "Using surface %#x for scale input.\n", + input_surface); + + output_frame = av_frame_alloc(); + if (!output_frame) { + av_log(ctx, AV_LOG_ERROR, "Failed to allocate output frame."); + err = AVERROR(ENOMEM); + goto fail; + } + + err = av_hwframe_get_buffer(ctx->output_frames_ref, output_frame, 0); + if (err < 0) { + av_log(ctx, AV_LOG_ERROR, "Failed to get surface for " + "output: %d\n.", err); + } + + output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3]; + av_log(ctx, AV_LOG_DEBUG, "Using surface %#x for scale output.\n", + output_surface); + + memset(¶ms, 0, sizeof(params)); + + params.surface = input_surface; + params.surface_region = 0; + params.surface_color_standard = + vaapi_proc_colour_standard(input_frame->colorspace); + + params.output_region = 0; + params.output_background_color = 0xff000000; + params.output_color_standard = params.surface_color_standard; + + params.pipeline_flags = 0; + params.filter_flags = VA_FILTER_SCALING_HQ; + + vas = vaBeginPicture(ctx->hwctx->display, + ctx->va_context, output_surface); + if (vas != VA_STATUS_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "Failed to attach new picture: " + "%d (%s).\n", vas, vaErrorStr(vas)); + err = AVERROR(EIO); + goto fail; + } + + vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context, + VAProcPipelineParameterBufferType, + sizeof(params), 1, ¶ms, ¶ms_id); + if (vas != VA_STATUS_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "Failed to create parameter buffer: " + "%d (%s).\n", vas, vaErrorStr(vas)); + err = AVERROR(EIO); + goto fail_after_begin; + } + av_log(ctx, AV_LOG_DEBUG, "Pipeline parameter buffer is %#x.\n", + params_id); + + vas = vaRenderPicture(ctx->hwctx->display, ctx->va_context, + ¶ms_id, 1); + if (vas != VA_STATUS_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "Failed to render parameter buffer: " + "%d (%s).\n", vas, vaErrorStr(vas)); + err = AVERROR(EIO); + goto fail_after_begin; + } + + vas = vaEndPicture(ctx->hwctx->display, ctx->va_context); + if (vas != VA_STATUS_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "Failed to start picture processing: " + "%d (%s).\n", vas, vaErrorStr(vas)); + err = AVERROR(EIO); + goto fail_after_render; + } + + // This doesn't get freed automatically for some reason. + vas = vaDestroyBuffer(ctx->hwctx->display, params_id); + if (vas != VA_STATUS_SUCCESS) { + av_log(ctx, AV_LOG_ERROR, "Failed to free parameter buffer: " + "%d (%s).\n", vas, vaErrorStr(vas)); + err = AVERROR(EIO); + goto fail; + } + + av_frame_copy_props(output_frame, input_frame); + av_frame_free(&input_frame); + + av_log(ctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n", + av_get_pix_fmt_name(output_frame->format), + output_frame->width, output_frame->height, output_frame->pts); + + return ff_filter_frame(outlink, output_frame); + + // We want to make sure that if vaBeginPicture has been called, we also + // call vaRenderPicture and vaEndPicture. These calls may well fail or + // do something else nasty, but once we're in this failure case there + // isn't much else we can do. +fail_after_begin: + vaRenderPicture(ctx->hwctx->display, ctx->va_context, ¶ms_id, 1); +fail_after_render: + vaEndPicture(ctx->hwctx->display, ctx->va_context); +fail: + av_frame_free(&input_frame); + av_frame_free(&output_frame); + return err; +} + +static av_cold int scale_vaapi_init(AVFilterContext *avctx) +{ + ScaleVAAPIContext *ctx = avctx->priv; + + ctx->va_config = VA_INVALID_ID; + ctx->va_context = VA_INVALID_ID; + ctx->valid_ids = 1; + + if (ctx->output_format_string) { + ctx->output_format = av_get_pix_fmt(ctx->output_format_string); + if (ctx->output_format == AV_PIX_FMT_NONE) { + av_log(ctx, AV_LOG_ERROR, "Invalid output format.\n"); + return AVERROR(EINVAL); + } + } else { + // Use the input format once that is configured. + ctx->output_format = AV_PIX_FMT_NONE; + } + + return 0; +} + +static av_cold void scale_vaapi_uninit(AVFilterContext *avctx) +{ + ScaleVAAPIContext *ctx = avctx->priv; + + if (ctx->valid_ids) + scale_vaapi_pipeline_uninit(ctx); + + av_buffer_unref(&ctx->input_frames_ref); + av_buffer_unref(&ctx->output_frames_ref); + av_buffer_unref(&ctx->device_ref); +} + + +#define OFFSET(x) offsetof(ScaleVAAPIContext, x) +#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM) +static const AVOption scale_vaapi_options[] = { + { "w", "Output video width", + OFFSET(output_width), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, .flags = FLAGS }, + { "h", "Output video height", + OFFSET(output_height), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, .flags = FLAGS }, + { "format", "Output video format (software format of hardware frames)", + OFFSET(output_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS }, + { NULL }, +}; + +static const AVClass scale_vaapi_class = { + .class_name = "scale_vaapi", + .item_name = av_default_item_name, + .option = scale_vaapi_options, + .version = LIBAVUTIL_VERSION_INT, +}; + +static const AVFilterPad scale_vaapi_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = &scale_vaapi_filter_frame, + .config_props = &scale_vaapi_config_input, + }, + { NULL } +}; + +static const AVFilterPad scale_vaapi_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = &scale_vaapi_config_output, + }, + { NULL } +}; + +AVFilter ff_vf_scale_vaapi = { + .name = "scale_vaapi", + .description = NULL_IF_CONFIG_SMALL("Scale to/from VAAPI surfaces."), + .priv_size = sizeof(ScaleVAAPIContext), + .init = &scale_vaapi_init, + .uninit = &scale_vaapi_uninit, + .query_formats = &scale_vaapi_query_formats, + .inputs = scale_vaapi_inputs, + .outputs = scale_vaapi_outputs, + .priv_class = &scale_vaapi_class, +}; |