diff options
author | Anton Khirnov <anton@khirnov.net> | 2016-03-26 12:39:58 +0100 |
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committer | Anton Khirnov <anton@khirnov.net> | 2016-06-21 19:53:38 +0200 |
commit | ac7bfd69678f3966e38debdb27f4bde94dc0345c (patch) | |
tree | 20720d2096908706dc59326db986ed16cdf1f8d8 | |
parent | ad9c9440d592e4d53d6bec9961b4b22e25387d70 (diff) | |
download | ffmpeg-ac7bfd69678f3966e38debdb27f4bde94dc0345c.tar.gz |
lavfi: add a QSV scaling filter
-rw-r--r-- | Changelog | 1 | ||||
-rwxr-xr-x | configure | 1 | ||||
-rw-r--r-- | libavfilter/Makefile | 1 | ||||
-rw-r--r-- | libavfilter/allfilters.c | 1 | ||||
-rw-r--r-- | libavfilter/version.h | 2 | ||||
-rw-r--r-- | libavfilter/vf_scale_qsv.c | 633 |
6 files changed, 638 insertions, 1 deletions
@@ -59,6 +59,7 @@ version <next>: - G.729 raw demuxer - MagicYUV decoder - Duck TrueMotion 2.0 Real Time decoder +- Intel QSV video scaling filter version 11: @@ -2409,6 +2409,7 @@ interlace_filter_deps="gpl" ocv_filter_deps="libopencv" resample_filter_deps="avresample" scale_filter_deps="swscale" +scale_qsv_filter_deps="libmfx" scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer" # examples diff --git a/libavfilter/Makefile b/libavfilter/Makefile index a9bb0a0c11..21515fed80 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -75,6 +75,7 @@ OBJS-$(CONFIG_PAD_FILTER) += vf_pad.o OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o OBJS-$(CONFIG_SCALE_FILTER) += vf_scale.o OBJS-$(CONFIG_SCALE_NPP_FILTER) += vf_scale_npp.o +OBJS-$(CONFIG_SCALE_QSV_FILTER) += vf_scale_qsv.o OBJS-$(CONFIG_SCALE_VAAPI_FILTER) += vf_scale_vaapi.o OBJS-$(CONFIG_SELECT_FILTER) += vf_select.o OBJS-$(CONFIG_SETDAR_FILTER) += vf_aspect.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index c6eeb1f4e4..e3858d8d83 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -98,6 +98,7 @@ void avfilter_register_all(void) REGISTER_FILTER(PIXDESCTEST, pixdesctest, vf); REGISTER_FILTER(SCALE, scale, vf); REGISTER_FILTER(SCALE_NPP, scale_npp, vf); + REGISTER_FILTER(SCALE_QSV, scale_qsv, vf); REGISTER_FILTER(SCALE_VAAPI, scale_vaapi, vf); REGISTER_FILTER(SELECT, select, vf); REGISTER_FILTER(SETDAR, setdar, vf); diff --git a/libavfilter/version.h b/libavfilter/version.h index c8102dd7d0..e91c6e2030 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -30,7 +30,7 @@ #include "libavutil/version.h" #define LIBAVFILTER_VERSION_MAJOR 6 -#define LIBAVFILTER_VERSION_MINOR 4 +#define LIBAVFILTER_VERSION_MINOR 5 #define LIBAVFILTER_VERSION_MICRO 0 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vf_scale_qsv.c b/libavfilter/vf_scale_qsv.c new file mode 100644 index 0000000000..e5c3da5a51 --- /dev/null +++ b/libavfilter/vf_scale_qsv.c @@ -0,0 +1,633 @@ +/* + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * scale video filter - QSV + */ + +#include <mfx/mfxvideo.h> + +#include <stdio.h> +#include <string.h> + +#include "libavutil/avstring.h" +#include "libavutil/common.h" +#include "libavutil/eval.h" +#include "libavutil/hwcontext.h" +#include "libavutil/hwcontext_qsv.h" +#include "libavutil/internal.h" +#include "libavutil/mathematics.h" +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" +#include "libavutil/time.h" + +#include "avfilter.h" +#include "formats.h" +#include "internal.h" +#include "video.h" + +static const char *const var_names[] = { + "PI", + "PHI", + "E", + "in_w", "iw", + "in_h", "ih", + "out_w", "ow", + "out_h", "oh", + "a", "dar", + "sar", + NULL +}; + +enum var_name { + VAR_PI, + VAR_PHI, + VAR_E, + VAR_IN_W, VAR_IW, + VAR_IN_H, VAR_IH, + VAR_OUT_W, VAR_OW, + VAR_OUT_H, VAR_OH, + VAR_A, VAR_DAR, + VAR_SAR, + VARS_NB +}; + +typedef struct QSVScaleContext { + const AVClass *class; + + AVBufferRef *out_frames_ref; + /* a clone of the main session, used internally for scaling */ + mfxSession session; + + mfxMemId *mem_ids_in; + int nb_mem_ids_in; + + mfxMemId *mem_ids_out; + int nb_mem_ids_out; + + mfxFrameSurface1 **surface_ptrs_in; + int nb_surface_ptrs_in; + + mfxFrameSurface1 **surface_ptrs_out; + int nb_surface_ptrs_out; + + mfxExtOpaqueSurfaceAlloc opaque_alloc; + mfxExtBuffer *ext_buffers[1]; + + int shift_width, shift_height; + + /** + * New dimensions. Special values are: + * 0 = original width/height + * -1 = keep original aspect + */ + int w, h; + + /** + * Output sw format. AV_PIX_FMT_NONE for no conversion. + */ + enum AVPixelFormat format; + + char *w_expr; ///< width expression string + char *h_expr; ///< height expression string + char *format_str; +} QSVScaleContext; + +static int qsvscale_init(AVFilterContext *ctx) +{ + QSVScaleContext *s = ctx->priv; + + if (!strcmp(s->format_str, "same")) { + s->format = AV_PIX_FMT_NONE; + } else { + s->format = av_get_pix_fmt(s->format_str); + if (s->format == AV_PIX_FMT_NONE) { + av_log(ctx, AV_LOG_ERROR, "Unrecognized pixel format: %s\n", s->format_str); + return AVERROR(EINVAL); + } + } + + return 0; +} + +static void qsvscale_uninit(AVFilterContext *ctx) +{ + QSVScaleContext *s = ctx->priv; + + if (s->session) { + MFXClose(s->session); + s->session = NULL; + } + av_buffer_unref(&s->out_frames_ref); + + av_freep(&s->mem_ids_in); + av_freep(&s->mem_ids_out); + s->nb_mem_ids_in = 0; + s->nb_mem_ids_out = 0; + + av_freep(&s->surface_ptrs_in); + av_freep(&s->surface_ptrs_out); + s->nb_surface_ptrs_in = 0; + s->nb_surface_ptrs_out = 0; +} + +static int qsvscale_query_formats(AVFilterContext *ctx) +{ + static const enum AVPixelFormat pixel_formats[] = { + AV_PIX_FMT_QSV, AV_PIX_FMT_NONE, + }; + AVFilterFormats *pix_fmts = ff_make_format_list(pixel_formats); + + ff_set_common_formats(ctx, pix_fmts); + + return 0; +} + +static int init_out_pool(AVFilterContext *ctx, + int out_width, int out_height) +{ + QSVScaleContext *s = ctx->priv; + + AVHWFramesContext *in_frames_ctx; + AVHWFramesContext *out_frames_ctx; + AVQSVFramesContext *in_frames_hwctx; + AVQSVFramesContext *out_frames_hwctx; + enum AVPixelFormat in_format; + enum AVPixelFormat out_format; + int i, ret; + + /* check that we have a hw context */ + if (!ctx->inputs[0]->hw_frames_ctx) { + av_log(ctx, AV_LOG_ERROR, "No hw context provided on input\n"); + return AVERROR(EINVAL); + } + in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data; + in_frames_hwctx = in_frames_ctx->hwctx; + + in_format = in_frames_ctx->sw_format; + out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format; + + s->out_frames_ref = av_hwframe_ctx_alloc(in_frames_ctx->device_ref); + if (!s->out_frames_ref) + return AVERROR(ENOMEM); + out_frames_ctx = (AVHWFramesContext*)s->out_frames_ref->data; + out_frames_hwctx = out_frames_ctx->hwctx; + + out_frames_ctx->format = AV_PIX_FMT_QSV; + out_frames_ctx->width = FFALIGN(out_width, 32); + out_frames_ctx->height = FFALIGN(out_height, 32); + out_frames_ctx->sw_format = out_format; + out_frames_ctx->initial_pool_size = 32; + + out_frames_hwctx->frame_type = in_frames_hwctx->frame_type; + + ret = av_hwframe_ctx_init(s->out_frames_ref); + if (ret < 0) + return ret; + + for (i = 0; i < out_frames_hwctx->nb_surfaces; i++) { + mfxFrameInfo *info = &out_frames_hwctx->surfaces[i].Info; + info->CropW = out_width; + info->CropH = out_height; + } + + return 0; +} + +static mfxStatus frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req, + mfxFrameAllocResponse *resp) +{ + AVFilterContext *ctx = pthis; + QSVScaleContext *s = ctx->priv; + + if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET) || + !(req->Type & (MFX_MEMTYPE_FROM_VPPIN | MFX_MEMTYPE_FROM_VPPOUT)) || + !(req->Type & MFX_MEMTYPE_EXTERNAL_FRAME)) + return MFX_ERR_UNSUPPORTED; + + if (req->Type & MFX_MEMTYPE_FROM_VPPIN) { + resp->mids = s->mem_ids_in; + resp->NumFrameActual = s->nb_mem_ids_in; + } else { + resp->mids = s->mem_ids_out; + resp->NumFrameActual = s->nb_mem_ids_out; + } + + return MFX_ERR_NONE; +} + +static mfxStatus frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp) +{ + return MFX_ERR_NONE; +} + +static mfxStatus frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr) +{ + return MFX_ERR_UNSUPPORTED; +} + +static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr) +{ + return MFX_ERR_UNSUPPORTED; +} + +static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl) +{ + *hdl = mid; + return MFX_ERR_NONE; +} + +static const mfxHandleType handle_types[] = { + MFX_HANDLE_VA_DISPLAY, + MFX_HANDLE_D3D9_DEVICE_MANAGER, + MFX_HANDLE_D3D11_DEVICE, +}; + +static int init_out_session(AVFilterContext *ctx) +{ + + QSVScaleContext *s = ctx->priv; + AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)ctx->inputs[0]->hw_frames_ctx->data; + AVHWFramesContext *out_frames_ctx = (AVHWFramesContext*)s->out_frames_ref->data; + AVQSVFramesContext *in_frames_hwctx = in_frames_ctx->hwctx; + AVQSVFramesContext *out_frames_hwctx = out_frames_ctx->hwctx; + AVQSVDeviceContext *device_hwctx = in_frames_ctx->device_ctx->hwctx; + + int opaque = !!(in_frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME); + + mfxHDL handle = NULL; + mfxHandleType handle_type; + mfxVersion ver; + mfxIMPL impl; + mfxVideoParam par; + mfxStatus err; + int i; + + /* extract the properties of the "master" session given to us */ + err = MFXQueryIMPL(device_hwctx->session, &impl); + if (err == MFX_ERR_NONE) + err = MFXQueryVersion(device_hwctx->session, &ver); + if (err != MFX_ERR_NONE) { + av_log(ctx, AV_LOG_ERROR, "Error querying the session attributes\n"); + return AVERROR_UNKNOWN; + } + + for (i = 0; i < FF_ARRAY_ELEMS(handle_types); i++) { + err = MFXVideoCORE_GetHandle(device_hwctx->session, handle_types[i], &handle); + if (err == MFX_ERR_NONE) { + handle_type = handle_types[i]; + break; + } + } + + /* create a "slave" session with those same properties, to be used for + * actual scaling */ + err = MFXInit(impl, &ver, &s->session); + if (err != MFX_ERR_NONE) { + av_log(ctx, AV_LOG_ERROR, "Error initializing a session for scaling\n"); + return AVERROR_UNKNOWN; + } + + if (handle) { + err = MFXVideoCORE_SetHandle(s->session, handle_type, handle); + if (err != MFX_ERR_NONE) + return AVERROR_UNKNOWN; + } + + memset(&par, 0, sizeof(par)); + + if (opaque) { + s->surface_ptrs_in = av_mallocz_array(in_frames_hwctx->nb_surfaces, + sizeof(*s->surface_ptrs_in)); + if (!s->surface_ptrs_in) + return AVERROR(ENOMEM); + for (i = 0; i < in_frames_hwctx->nb_surfaces; i++) + s->surface_ptrs_in[i] = in_frames_hwctx->surfaces + i; + s->nb_surface_ptrs_in = in_frames_hwctx->nb_surfaces; + + s->surface_ptrs_out = av_mallocz_array(out_frames_hwctx->nb_surfaces, + sizeof(*s->surface_ptrs_out)); + if (!s->surface_ptrs_out) + return AVERROR(ENOMEM); + for (i = 0; i < out_frames_hwctx->nb_surfaces; i++) + s->surface_ptrs_out[i] = out_frames_hwctx->surfaces + i; + s->nb_surface_ptrs_out = out_frames_hwctx->nb_surfaces; + + s->opaque_alloc.In.Surfaces = s->surface_ptrs_in; + s->opaque_alloc.In.NumSurface = s->nb_surface_ptrs_in; + s->opaque_alloc.In.Type = in_frames_hwctx->frame_type; + + s->opaque_alloc.Out.Surfaces = s->surface_ptrs_out; + s->opaque_alloc.Out.NumSurface = s->nb_surface_ptrs_out; + s->opaque_alloc.Out.Type = out_frames_hwctx->frame_type; + + s->opaque_alloc.Header.BufferId = MFX_EXTBUFF_OPAQUE_SURFACE_ALLOCATION; + s->opaque_alloc.Header.BufferSz = sizeof(s->opaque_alloc); + + s->ext_buffers[0] = (mfxExtBuffer*)&s->opaque_alloc; + + par.ExtParam = s->ext_buffers; + par.NumExtParam = FF_ARRAY_ELEMS(s->ext_buffers); + + par.IOPattern = MFX_IOPATTERN_IN_OPAQUE_MEMORY | MFX_IOPATTERN_OUT_OPAQUE_MEMORY; + } else { + mfxFrameAllocator frame_allocator = { + .pthis = ctx, + .Alloc = frame_alloc, + .Lock = frame_lock, + .Unlock = frame_unlock, + .GetHDL = frame_get_hdl, + .Free = frame_free, + }; + + s->mem_ids_in = av_mallocz_array(in_frames_hwctx->nb_surfaces, + sizeof(*s->mem_ids_in)); + if (!s->mem_ids_in) + return AVERROR(ENOMEM); + for (i = 0; i < in_frames_hwctx->nb_surfaces; i++) + s->mem_ids_in[i] = in_frames_hwctx->surfaces[i].Data.MemId; + s->nb_mem_ids_in = in_frames_hwctx->nb_surfaces; + + s->mem_ids_out = av_mallocz_array(out_frames_hwctx->nb_surfaces, + sizeof(*s->mem_ids_out)); + if (!s->mem_ids_out) + return AVERROR(ENOMEM); + for (i = 0; i < out_frames_hwctx->nb_surfaces; i++) + s->mem_ids_out[i] = out_frames_hwctx->surfaces[i].Data.MemId; + s->nb_mem_ids_out = out_frames_hwctx->nb_surfaces; + + err = MFXVideoCORE_SetFrameAllocator(s->session, &frame_allocator); + if (err != MFX_ERR_NONE) + return AVERROR_UNKNOWN; + + par.IOPattern = MFX_IOPATTERN_IN_VIDEO_MEMORY | MFX_IOPATTERN_OUT_VIDEO_MEMORY; + } + + par.AsyncDepth = 1; // TODO async + + par.vpp.In = in_frames_hwctx->surfaces[0].Info; + par.vpp.Out = out_frames_hwctx->surfaces[0].Info; + + /* Apparently VPP requires the frame rate to be set to some value, otherwise + * init will fail (probably for the framerate conversion filter). Since we + * are only doing scaling here, we just invent an arbitrary + * value */ + par.vpp.In.FrameRateExtN = 25; + par.vpp.In.FrameRateExtD = 1; + par.vpp.Out.FrameRateExtN = 25; + par.vpp.Out.FrameRateExtD = 1; + + err = MFXVideoVPP_Init(s->session, &par); + if (err != MFX_ERR_NONE) { + av_log(ctx, AV_LOG_ERROR, "Error opening the VPP for scaling\n"); + return AVERROR_UNKNOWN; + } + + return 0; +} + +static int init_scale_session(AVFilterContext *ctx, int in_width, int in_height, + int out_width, int out_height) +{ + QSVScaleContext *s = ctx->priv; + + int ret; + + qsvscale_uninit(ctx); + + ret = init_out_pool(ctx, out_width, out_height); + if (ret < 0) + return ret; + + ret = init_out_session(ctx); + if (ret < 0) + return ret; + + av_buffer_unref(&ctx->outputs[0]->hw_frames_ctx); + ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->out_frames_ref); + if (!ctx->outputs[0]->hw_frames_ctx) + return AVERROR(ENOMEM); + + return 0; +} + +static int qsvscale_config_props(AVFilterLink *outlink) +{ + AVFilterContext *ctx = outlink->src; + AVFilterLink *inlink = outlink->src->inputs[0]; + QSVScaleContext *s = ctx->priv; + int64_t w, h; + double var_values[VARS_NB], res; + char *expr; + int ret; + + var_values[VAR_PI] = M_PI; + var_values[VAR_PHI] = M_PHI; + var_values[VAR_E] = M_E; + var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w; + var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h; + var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN; + var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN; + var_values[VAR_A] = (double) inlink->w / inlink->h; + var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ? + (double) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1; + var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR]; + + /* evaluate width and height */ + av_expr_parse_and_eval(&res, (expr = s->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx); + s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; + if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + goto fail; + s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res; + /* evaluate again the width, as it may depend on the output height */ + if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr), + var_names, var_values, + NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) + goto fail; + s->w = res; + + w = s->w; + h = s->h; + + /* sanity check params */ + if (w < -1 || h < -1) { + av_log(ctx, AV_LOG_ERROR, "Size values less than -1 are not acceptable.\n"); + return AVERROR(EINVAL); + } + if (w == -1 && h == -1) + s->w = s->h = 0; + + if (!(w = s->w)) + w = inlink->w; + if (!(h = s->h)) + h = inlink->h; + if (w == -1) + w = av_rescale(h, inlink->w, inlink->h); + if (h == -1) + h = av_rescale(w, inlink->h, inlink->w); + + if (w > INT_MAX || h > INT_MAX || + (h * inlink->w) > INT_MAX || + (w * inlink->h) > INT_MAX) + av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n"); + + outlink->w = w; + outlink->h = h; + + ret = init_scale_session(ctx, inlink->w, inlink->h, w, h); + if (ret < 0) + return ret; + + av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d\n", + inlink->w, inlink->h, outlink->w, outlink->h); + + if (inlink->sample_aspect_ratio.num) + outlink->sample_aspect_ratio = av_mul_q((AVRational){outlink->h*inlink->w, + outlink->w*inlink->h}, + inlink->sample_aspect_ratio); + else + outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; + + return 0; + +fail: + av_log(NULL, AV_LOG_ERROR, + "Error when evaluating the expression '%s'\n", expr); + return ret; +} + +static int qsvscale_filter_frame(AVFilterLink *link, AVFrame *in) +{ + AVFilterContext *ctx = link->dst; + QSVScaleContext *s = ctx->priv; + AVFilterLink *outlink = ctx->outputs[0]; + + mfxSyncPoint sync = NULL; + mfxStatus err; + + AVFrame *out = NULL; + int ret = 0; + + out = av_frame_alloc(); + if (!out) { + ret = AVERROR(ENOMEM); + goto fail; + } + + ret = av_hwframe_get_buffer(s->out_frames_ref, out, 0); + if (ret < 0) + goto fail; + + do { + err = MFXVideoVPP_RunFrameVPPAsync(s->session, + (mfxFrameSurface1*)in->data[3], + (mfxFrameSurface1*)out->data[3], + NULL, &sync); + if (err == MFX_WRN_DEVICE_BUSY) + av_usleep(1); + } while (err == MFX_WRN_DEVICE_BUSY); + + if (err < 0 || !sync) { + av_log(ctx, AV_LOG_ERROR, "Error during scaling\n"); + ret = AVERROR_UNKNOWN; + goto fail; + } + + do { + err = MFXVideoCORE_SyncOperation(s->session, sync, 1000); + } while (err == MFX_WRN_IN_EXECUTION); + if (err < 0) { + av_log(ctx, AV_LOG_ERROR, "Error synchronizing the operation: %d\n", err); + ret = AVERROR_UNKNOWN; + goto fail; + } + + ret = av_frame_copy_props(out, in); + if (ret < 0) + goto fail; + + out->width = outlink->w; + out->height = outlink->h; + + av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den, + (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w, + (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h, + INT_MAX); + + av_frame_free(&in); + return ff_filter_frame(outlink, out); +fail: + av_frame_free(&in); + av_frame_free(&out); + return ret; +} + +#define OFFSET(x) offsetof(QSVScaleContext, x) +#define FLAGS AV_OPT_FLAG_VIDEO_PARAM +static const AVOption options[] = { + { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS }, + { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS }, + { "format", "Output pixel format", OFFSET(format_str), AV_OPT_TYPE_STRING, { .str = "same" }, .flags = FLAGS }, + + { NULL }, +}; + +static const AVClass qsvscale_class = { + .class_name = "qsvscale", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + +static const AVFilterPad qsvscale_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = qsvscale_filter_frame, + }, + { NULL } +}; + +static const AVFilterPad qsvscale_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = qsvscale_config_props, + }, + { NULL } +}; + +AVFilter ff_vf_scale_qsv = { + .name = "scale_qsv", + .description = NULL_IF_CONFIG_SMALL("QuickSync video scaling and format conversion"), + + .init = qsvscale_init, + .uninit = qsvscale_uninit, + .query_formats = qsvscale_query_formats, + + .priv_size = sizeof(QSVScaleContext), + .priv_class = &qsvscale_class, + + .inputs = qsvscale_inputs, + .outputs = qsvscale_outputs, +}; |