| /* |
| * Copyright (c) 2002 A'rpi |
| * Copyright (C) 2012 Clément Bœsch |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU 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. |
| */ |
| |
| /** |
| * @file |
| * libpostproc filter, ported from MPlayer. |
| */ |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/opt.h" |
| #include "internal.h" |
| |
| #include "libpostproc/postprocess.h" |
| |
| typedef struct { |
| int mode_id; |
| pp_mode *modes[PP_QUALITY_MAX + 1]; |
| void *pp_ctx; |
| } PPFilterContext; |
| |
| static av_cold int pp_init(AVFilterContext *ctx, const char *args) |
| { |
| int i; |
| PPFilterContext *pp = ctx->priv; |
| |
| if (!args || !*args) |
| args = "de"; |
| |
| for (i = 0; i <= PP_QUALITY_MAX; i++) { |
| pp->modes[i] = pp_get_mode_by_name_and_quality(args, i); |
| if (!pp->modes[i]) |
| return AVERROR_EXTERNAL; |
| } |
| pp->mode_id = PP_QUALITY_MAX; |
| return 0; |
| } |
| |
| static int pp_process_command(AVFilterContext *ctx, const char *cmd, const char *args, |
| char *res, int res_len, int flags) |
| { |
| PPFilterContext *pp = ctx->priv; |
| |
| if (!strcmp(cmd, "quality")) { |
| pp->mode_id = av_clip(strtol(args, NULL, 10), 0, PP_QUALITY_MAX); |
| return 0; |
| } |
| return AVERROR(ENOSYS); |
| } |
| |
| static int pp_query_formats(AVFilterContext *ctx) |
| { |
| static const enum PixelFormat pix_fmts[] = { |
| AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P, |
| AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P, |
| AV_PIX_FMT_YUV411P, |
| AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, |
| AV_PIX_FMT_NONE |
| }; |
| ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); |
| return 0; |
| } |
| |
| static int pp_config_props(AVFilterLink *inlink) |
| { |
| int flags = PP_CPU_CAPS_AUTO; |
| PPFilterContext *pp = inlink->dst->priv; |
| |
| switch (inlink->format) { |
| case AV_PIX_FMT_YUVJ420P: |
| case AV_PIX_FMT_YUV420P: flags |= PP_FORMAT_420; break; |
| case AV_PIX_FMT_YUVJ422P: |
| case AV_PIX_FMT_YUV422P: flags |= PP_FORMAT_422; break; |
| case AV_PIX_FMT_YUV411P: flags |= PP_FORMAT_411; break; |
| case AV_PIX_FMT_YUVJ444P: |
| case AV_PIX_FMT_YUV444P: flags |= PP_FORMAT_444; break; |
| default: av_assert0(0); |
| } |
| |
| pp->pp_ctx = pp_get_context(inlink->w, inlink->h, flags); |
| if (!pp->pp_ctx) |
| return AVERROR(ENOMEM); |
| return 0; |
| } |
| |
| static int pp_filter_frame(AVFilterLink *inlink, AVFilterBufferRef *inbuf) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| PPFilterContext *pp = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| const int aligned_w = FFALIGN(outlink->w, 8); |
| const int aligned_h = FFALIGN(outlink->h, 8); |
| AVFilterBufferRef *outbuf; |
| |
| outbuf = ff_get_video_buffer(outlink, AV_PERM_WRITE, aligned_w, aligned_h); |
| if (!outbuf) { |
| avfilter_unref_buffer(inbuf); |
| return AVERROR(ENOMEM); |
| } |
| avfilter_copy_buffer_ref_props(outbuf, inbuf); |
| |
| pp_postprocess((const uint8_t **)inbuf->data, inbuf->linesize, |
| outbuf->data, outbuf->linesize, |
| aligned_w, outlink->h, |
| outbuf->video->qp_table, |
| outbuf->video->qp_table_linesize, |
| pp->modes[pp->mode_id], |
| pp->pp_ctx, |
| outbuf->video->pict_type); |
| |
| avfilter_unref_buffer(inbuf); |
| return ff_filter_frame(outlink, outbuf); |
| } |
| |
| static av_cold void pp_uninit(AVFilterContext *ctx) |
| { |
| int i; |
| PPFilterContext *pp = ctx->priv; |
| |
| for (i = 0; i <= PP_QUALITY_MAX; i++) |
| pp_free_mode(pp->modes[i]); |
| if (pp->pp_ctx) |
| pp_free_context(pp->pp_ctx); |
| } |
| |
| static const AVFilterPad pp_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = pp_config_props, |
| .filter_frame = pp_filter_frame, |
| .min_perms = AV_PERM_READ, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad pp_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter avfilter_vf_pp = { |
| .name = "pp", |
| .description = NULL_IF_CONFIG_SMALL("Filter video using libpostproc."), |
| .priv_size = sizeof(PPFilterContext), |
| .init = pp_init, |
| .uninit = pp_uninit, |
| .query_formats = pp_query_formats, |
| .inputs = pp_inputs, |
| .outputs = pp_outputs, |
| .process_command = pp_process_command, |
| }; |