mirror of https://github.com/FFmpeg/FFmpeg.git
Anton Khirnov
9 years ago
parent
98114d70e4
commit
8a02a8031e
7 changed files with 707 additions and 1 deletions
@ -0,0 +1,660 @@ |
||||
/*
|
||||
* 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 |
||||
*/ |
||||
|
||||
#include <nppi.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_cuda.h" |
||||
#include "libavutil/internal.h" |
||||
#include "libavutil/mathematics.h" |
||||
#include "libavutil/opt.h" |
||||
#include "libavutil/pixdesc.h" |
||||
|
||||
#include "avfilter.h" |
||||
#include "formats.h" |
||||
#include "internal.h" |
||||
#include "video.h" |
||||
|
||||
static const enum AVPixelFormat supported_formats[] = { |
||||
AV_PIX_FMT_YUV420P, |
||||
AV_PIX_FMT_NV12, |
||||
AV_PIX_FMT_YUV444P, |
||||
}; |
||||
|
||||
static const enum AVPixelFormat deinterleaved_formats[][2] = { |
||||
{ AV_PIX_FMT_NV12, AV_PIX_FMT_YUV420P }, |
||||
}; |
||||
|
||||
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 |
||||
}; |
||||
|
||||
enum ScaleStage { |
||||
STAGE_DEINTERLEAVE, |
||||
STAGE_RESIZE, |
||||
STAGE_INTERLEAVE, |
||||
STAGE_NB, |
||||
}; |
||||
|
||||
typedef struct NPPScaleStageContext { |
||||
int stage_needed; |
||||
enum AVPixelFormat in_fmt; |
||||
enum AVPixelFormat out_fmt; |
||||
|
||||
struct { |
||||
int width; |
||||
int height; |
||||
} planes_in[3], planes_out[3]; |
||||
|
||||
AVBufferRef *frames_ctx; |
||||
AVFrame *frame; |
||||
} NPPScaleStageContext; |
||||
|
||||
typedef struct NPPScaleContext { |
||||
const AVClass *class; |
||||
|
||||
NPPScaleStageContext stages[STAGE_NB]; |
||||
AVFrame *tmp_frame; |
||||
int passthrough; |
||||
|
||||
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; |
||||
|
||||
int interp_algo; |
||||
} NPPScaleContext; |
||||
|
||||
static int nppscale_init(AVFilterContext *ctx) |
||||
{ |
||||
NPPScaleContext *s = ctx->priv; |
||||
int i; |
||||
|
||||
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); |
||||
} |
||||
} |
||||
|
||||
for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { |
||||
s->stages[i].frame = av_frame_alloc(); |
||||
if (!s->stages[i].frame) |
||||
return AVERROR(ENOMEM); |
||||
} |
||||
s->tmp_frame = av_frame_alloc(); |
||||
if (!s->tmp_frame) |
||||
return AVERROR(ENOMEM); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static void nppscale_uninit(AVFilterContext *ctx) |
||||
{ |
||||
NPPScaleContext *s = ctx->priv; |
||||
int i; |
||||
|
||||
for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { |
||||
av_frame_free(&s->stages[i].frame); |
||||
av_buffer_unref(&s->stages[i].frames_ctx); |
||||
} |
||||
av_frame_free(&s->tmp_frame); |
||||
} |
||||
|
||||
static int nppscale_query_formats(AVFilterContext *ctx) |
||||
{ |
||||
static const enum AVPixelFormat pixel_formats[] = { |
||||
AV_PIX_FMT_CUDA, 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_stage(NPPScaleStageContext *stage, AVBufferRef *device_ctx) |
||||
{ |
||||
AVBufferRef *out_ref = NULL; |
||||
AVHWFramesContext *out_ctx; |
||||
int in_sw, in_sh, out_sw, out_sh; |
||||
int ret, i; |
||||
|
||||
av_pix_fmt_get_chroma_sub_sample(stage->in_fmt, &in_sw, &in_sh); |
||||
av_pix_fmt_get_chroma_sub_sample(stage->out_fmt, &out_sw, &out_sh); |
||||
if (!stage->planes_out[0].width) { |
||||
stage->planes_out[0].width = stage->planes_in[0].width; |
||||
stage->planes_out[0].height = stage->planes_in[0].height; |
||||
} |
||||
|
||||
for (i = 1; i < FF_ARRAY_ELEMS(stage->planes_in); i++) { |
||||
stage->planes_in[i].width = stage->planes_in[0].width >> in_sw; |
||||
stage->planes_in[i].height = stage->planes_in[0].height >> in_sh; |
||||
stage->planes_out[i].width = stage->planes_out[0].width >> out_sw; |
||||
stage->planes_out[i].height = stage->planes_out[0].height >> out_sh; |
||||
} |
||||
|
||||
out_ref = av_hwframe_ctx_alloc(device_ctx); |
||||
if (!out_ref) |
||||
return AVERROR(ENOMEM); |
||||
out_ctx = (AVHWFramesContext*)out_ref->data; |
||||
|
||||
out_ctx->format = AV_PIX_FMT_CUDA; |
||||
out_ctx->sw_format = stage->out_fmt; |
||||
out_ctx->width = FFALIGN(stage->planes_out[0].width, 32); |
||||
out_ctx->height = FFALIGN(stage->planes_out[0].height, 32); |
||||
|
||||
ret = av_hwframe_ctx_init(out_ref); |
||||
if (ret < 0) |
||||
goto fail; |
||||
|
||||
av_frame_unref(stage->frame); |
||||
ret = av_hwframe_get_buffer(out_ref, stage->frame, 0); |
||||
if (ret < 0) |
||||
goto fail; |
||||
|
||||
stage->frame->width = stage->planes_out[0].width; |
||||
stage->frame->height = stage->planes_out[0].height; |
||||
|
||||
av_buffer_unref(&stage->frames_ctx); |
||||
stage->frames_ctx = out_ref; |
||||
|
||||
return 0; |
||||
fail: |
||||
av_buffer_unref(&out_ref); |
||||
return ret; |
||||
} |
||||
|
||||
static int format_is_supported(enum AVPixelFormat fmt) |
||||
{ |
||||
int i; |
||||
|
||||
for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) |
||||
if (supported_formats[i] == fmt) |
||||
return 1; |
||||
return 0; |
||||
} |
||||
|
||||
static enum AVPixelFormat get_deinterleaved_format(enum AVPixelFormat fmt) |
||||
{ |
||||
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); |
||||
int i, planes; |
||||
|
||||
planes = av_pix_fmt_count_planes(fmt); |
||||
if (planes == desc->nb_components) |
||||
return fmt; |
||||
for (i = 0; i < FF_ARRAY_ELEMS(deinterleaved_formats); i++) |
||||
if (deinterleaved_formats[i][0] == fmt) |
||||
return deinterleaved_formats[i][1]; |
||||
return AV_PIX_FMT_NONE; |
||||
} |
||||
|
||||
static int init_processing_chain(AVFilterContext *ctx, int in_width, int in_height, |
||||
int out_width, int out_height) |
||||
{ |
||||
NPPScaleContext *s = ctx->priv; |
||||
|
||||
AVHWFramesContext *in_frames_ctx; |
||||
|
||||
enum AVPixelFormat in_format; |
||||
enum AVPixelFormat out_format; |
||||
enum AVPixelFormat in_deinterleaved_format; |
||||
enum AVPixelFormat out_deinterleaved_format; |
||||
|
||||
int i, ret, last_stage = -1; |
||||
|
||||
/* 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_format = in_frames_ctx->sw_format; |
||||
out_format = (s->format == AV_PIX_FMT_NONE) ? in_format : s->format; |
||||
|
||||
if (!format_is_supported(in_format)) { |
||||
av_log(ctx, AV_LOG_ERROR, "Unsupported input format: %s\n", |
||||
av_get_pix_fmt_name(in_format)); |
||||
return AVERROR(ENOSYS); |
||||
} |
||||
if (!format_is_supported(out_format)) { |
||||
av_log(ctx, AV_LOG_ERROR, "Unsupported output format: %s\n", |
||||
av_get_pix_fmt_name(out_format)); |
||||
return AVERROR(ENOSYS); |
||||
} |
||||
|
||||
in_deinterleaved_format = get_deinterleaved_format(in_format); |
||||
out_deinterleaved_format = get_deinterleaved_format(out_format); |
||||
if (in_deinterleaved_format == AV_PIX_FMT_NONE || |
||||
out_deinterleaved_format == AV_PIX_FMT_NONE) |
||||
return AVERROR_BUG; |
||||
|
||||
/* figure out which stages need to be done */ |
||||
if (in_width != out_width || in_height != out_height || |
||||
in_deinterleaved_format != out_deinterleaved_format) |
||||
s->stages[STAGE_RESIZE].stage_needed = 1; |
||||
|
||||
if (!s->stages[STAGE_RESIZE].stage_needed && in_format == out_format) |
||||
s->passthrough = 1; |
||||
|
||||
if (!s->passthrough) { |
||||
if (in_format != in_deinterleaved_format) |
||||
s->stages[STAGE_DEINTERLEAVE].stage_needed = 1; |
||||
if (out_format != out_deinterleaved_format) |
||||
s->stages[STAGE_INTERLEAVE].stage_needed = 1; |
||||
} |
||||
|
||||
s->stages[STAGE_DEINTERLEAVE].in_fmt = in_format; |
||||
s->stages[STAGE_DEINTERLEAVE].out_fmt = in_deinterleaved_format; |
||||
s->stages[STAGE_DEINTERLEAVE].planes_in[0].width = in_width; |
||||
s->stages[STAGE_DEINTERLEAVE].planes_in[0].height = in_height; |
||||
|
||||
s->stages[STAGE_RESIZE].in_fmt = in_deinterleaved_format; |
||||
s->stages[STAGE_RESIZE].out_fmt = out_deinterleaved_format; |
||||
s->stages[STAGE_RESIZE].planes_in[0].width = in_width; |
||||
s->stages[STAGE_RESIZE].planes_in[0].height = in_height; |
||||
s->stages[STAGE_RESIZE].planes_out[0].width = out_width; |
||||
s->stages[STAGE_RESIZE].planes_out[0].height = out_height; |
||||
|
||||
s->stages[STAGE_INTERLEAVE].in_fmt = out_deinterleaved_format; |
||||
s->stages[STAGE_INTERLEAVE].out_fmt = out_format; |
||||
s->stages[STAGE_INTERLEAVE].planes_in[0].width = out_width; |
||||
s->stages[STAGE_INTERLEAVE].planes_in[0].height = out_height; |
||||
|
||||
/* init the hardware contexts */ |
||||
for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { |
||||
if (!s->stages[i].stage_needed) |
||||
continue; |
||||
|
||||
ret = init_stage(&s->stages[i], in_frames_ctx->device_ref); |
||||
if (ret < 0) |
||||
return ret; |
||||
|
||||
last_stage = i; |
||||
} |
||||
|
||||
if (last_stage < 0) |
||||
return AVERROR_BUG; |
||||
ctx->outputs[0]->hw_frames_ctx = av_buffer_ref(s->stages[last_stage].frames_ctx); |
||||
if (!ctx->outputs[0]->hw_frames_ctx) |
||||
return AVERROR(ENOMEM); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int nppscale_config_props(AVFilterLink *outlink) |
||||
{ |
||||
AVFilterContext *ctx = outlink->src; |
||||
AVFilterLink *inlink = outlink->src->inputs[0]; |
||||
NPPScaleContext *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_processing_chain(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 nppscale_deinterleave(AVFilterContext *ctx, NPPScaleStageContext *stage, |
||||
AVFrame *out, AVFrame *in) |
||||
{ |
||||
AVHWFramesContext *in_frames_ctx = (AVHWFramesContext*)in->hw_frames_ctx->data; |
||||
NppStatus err; |
||||
|
||||
switch (in_frames_ctx->sw_format) { |
||||
case AV_PIX_FMT_NV12: |
||||
err = nppiYCbCr420_8u_P2P3R(in->data[0], in->linesize[0], |
||||
in->data[1], in->linesize[1], |
||||
out->data, out->linesize, |
||||
(NppiSize){ in->width, in->height }); |
||||
break; |
||||
default: |
||||
return AVERROR_BUG; |
||||
} |
||||
if (err != NPP_SUCCESS) { |
||||
av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err); |
||||
return AVERROR_UNKNOWN; |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int nppscale_resize(AVFilterContext *ctx, NPPScaleStageContext *stage, |
||||
AVFrame *out, AVFrame *in) |
||||
{ |
||||
NPPScaleContext *s = ctx->priv; |
||||
NppStatus err; |
||||
int i; |
||||
|
||||
for (i = 0; i < FF_ARRAY_ELEMS(in->data) && in->data[i]; i++) { |
||||
int iw = stage->planes_in[i].width; |
||||
int ih = stage->planes_in[i].height; |
||||
int ow = stage->planes_out[i].width; |
||||
int oh = stage->planes_out[i].height; |
||||
|
||||
err = nppiResizeSqrPixel_8u_C1R(in->data[i], (NppiSize){ iw, ih }, |
||||
in->linesize[i], (NppiRect){ 0, 0, iw, ih }, |
||||
out->data[i], out->linesize[i], |
||||
(NppiRect){ 0, 0, ow, oh }, |
||||
(double)ow / iw, (double)oh / ih, |
||||
0.0, 0.0, s->interp_algo); |
||||
if (err != NPP_SUCCESS) { |
||||
av_log(ctx, AV_LOG_ERROR, "NPP resize error: %d\n", err); |
||||
return AVERROR_UNKNOWN; |
||||
} |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int nppscale_interleave(AVFilterContext *ctx, NPPScaleStageContext *stage, |
||||
AVFrame *out, AVFrame *in) |
||||
{ |
||||
AVHWFramesContext *out_frames_ctx = (AVHWFramesContext*)out->hw_frames_ctx->data; |
||||
NppStatus err; |
||||
|
||||
switch (out_frames_ctx->sw_format) { |
||||
case AV_PIX_FMT_NV12: |
||||
err = nppiYCbCr420_8u_P3P2R((const uint8_t**)in->data, |
||||
in->linesize, |
||||
out->data[0], out->linesize[0], |
||||
out->data[1], out->linesize[1], |
||||
(NppiSize){ in->width, in->height }); |
||||
break; |
||||
default: |
||||
return AVERROR_BUG; |
||||
} |
||||
if (err != NPP_SUCCESS) { |
||||
av_log(ctx, AV_LOG_ERROR, "NPP deinterleave error: %d\n", err); |
||||
return AVERROR_UNKNOWN; |
||||
} |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int (*const nppscale_process[])(AVFilterContext *ctx, NPPScaleStageContext *stage, |
||||
AVFrame *out, AVFrame *in) = { |
||||
[STAGE_DEINTERLEAVE] = nppscale_deinterleave, |
||||
[STAGE_RESIZE] = nppscale_resize, |
||||
[STAGE_INTERLEAVE] = nppscale_interleave, |
||||
}; |
||||
|
||||
static int nppscale_scale(AVFilterContext *ctx, AVFrame *out, AVFrame *in) |
||||
{ |
||||
NPPScaleContext *s = ctx->priv; |
||||
AVFrame *src = in; |
||||
int i, ret, last_stage = -1; |
||||
|
||||
for (i = 0; i < FF_ARRAY_ELEMS(s->stages); i++) { |
||||
if (!s->stages[i].stage_needed) |
||||
continue; |
||||
|
||||
ret = nppscale_process[i](ctx, &s->stages[i], s->stages[i].frame, src); |
||||
if (ret < 0) |
||||
return ret; |
||||
|
||||
src = s->stages[i].frame; |
||||
last_stage = i; |
||||
} |
||||
|
||||
if (last_stage < 0) |
||||
return AVERROR_BUG; |
||||
ret = av_hwframe_get_buffer(src->hw_frames_ctx, s->tmp_frame, 0); |
||||
if (ret < 0) |
||||
return ret; |
||||
|
||||
av_frame_move_ref(out, src); |
||||
av_frame_move_ref(src, s->tmp_frame); |
||||
|
||||
ret = av_frame_copy_props(out, in); |
||||
if (ret < 0) |
||||
return ret; |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
static int nppscale_filter_frame(AVFilterLink *link, AVFrame *in) |
||||
{ |
||||
AVFilterContext *ctx = link->dst; |
||||
NPPScaleContext *s = ctx->priv; |
||||
AVFilterLink *outlink = ctx->outputs[0]; |
||||
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)outlink->hw_frames_ctx->data; |
||||
AVCUDADeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx; |
||||
|
||||
AVFrame *out = NULL; |
||||
CUresult err; |
||||
CUcontext dummy; |
||||
int ret = 0; |
||||
|
||||
if (s->passthrough) |
||||
return ff_filter_frame(outlink, in); |
||||
|
||||
out = av_frame_alloc(); |
||||
if (!out) { |
||||
ret = AVERROR(ENOMEM); |
||||
goto fail; |
||||
} |
||||
|
||||
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); |
||||
|
||||
err = cuCtxPushCurrent(device_hwctx->cuda_ctx); |
||||
if (err != CUDA_SUCCESS) { |
||||
ret = AVERROR_UNKNOWN; |
||||
goto fail; |
||||
} |
||||
|
||||
ret = nppscale_scale(ctx, out, in); |
||||
|
||||
cuCtxPopCurrent(&dummy); |
||||
if (ret < 0) |
||||
goto fail; |
||||
|
||||
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(NPPScaleContext, 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 }, |
||||
|
||||
{ "interp_algo", "Interpolation algorithm used for resizing", OFFSET(interp_algo), AV_OPT_TYPE_INT, { .i64 = NPPI_INTER_CUBIC }, 0, INT_MAX, FLAGS, "interp_algo" }, |
||||
{ "nn", "nearest neighbour", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_NN }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ "linear", "linear", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LINEAR }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ "cubic", "cubic", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ "cubic2p_bspline", "2-parameter cubic (B=1, C=0)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_BSPLINE }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ "cubic2p_catmullrom", "2-parameter cubic (B=0, C=1/2)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_CATMULLROM }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ "cubic2p_b05c03", "2-parameter cubic (B=1/2, C=3/10)", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_CUBIC2P_B05C03 }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ "super", "supersampling", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_SUPER }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ "lanczos", "Lanczos", 0, AV_OPT_TYPE_CONST, { .i64 = NPPI_INTER_LANCZOS }, 0, 0, FLAGS, "interp_algo" }, |
||||
{ NULL }, |
||||
}; |
||||
|
||||
static const AVClass nppscale_class = { |
||||
.class_name = "nppscale", |
||||
.item_name = av_default_item_name, |
||||
.option = options, |
||||
.version = LIBAVUTIL_VERSION_INT, |
||||
}; |
||||
|
||||
static const AVFilterPad nppscale_inputs[] = { |
||||
{ |
||||
.name = "default", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.filter_frame = nppscale_filter_frame, |
||||
}, |
||||
{ NULL } |
||||
}; |
||||
|
||||
static const AVFilterPad nppscale_outputs[] = { |
||||
{ |
||||
.name = "default", |
||||
.type = AVMEDIA_TYPE_VIDEO, |
||||
.config_props = nppscale_config_props, |
||||
}, |
||||
{ NULL } |
||||
}; |
||||
|
||||
AVFilter ff_vf_scale_npp = { |
||||
.name = "scale_npp", |
||||
.description = NULL_IF_CONFIG_SMALL("NVIDIA Performance Primitives video " |
||||
"scaling and format conversion"), |
||||
|
||||
.init = nppscale_init, |
||||
.uninit = nppscale_uninit, |
||||
.query_formats = nppscale_query_formats, |
||||
|
||||
.priv_size = sizeof(NPPScaleContext), |
||||
.priv_class = &nppscale_class, |
||||
|
||||
.inputs = nppscale_inputs, |
||||
.outputs = nppscale_outputs, |
||||
}; |
||||
Loading…
Reference in new issue