forked from mia/Aegisub
97 lines
4.1 KiB
C++
97 lines
4.1 KiB
C++
// Copyright (c) 2007 Fredrik Mellbin
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "ffmpegsource.h"
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FFPP::FFPP(PClip AChild, const char *APPString, int AQuality, IScriptEnvironment *Env) : GenericVideoFilter(AChild) {
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if (!strcmp(APPString, ""))
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Env->ThrowError("FFPP: PP argument is empty");
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if (AQuality < 0 || AQuality > PP_QUALITY_MAX)
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Env->ThrowError("FFPP: Quality is out of range");
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PPContext = NULL;
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PPMode = NULL;
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SWSTo422P = NULL;
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SWSFrom422P = NULL;
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memset(&InputPicture, 0, sizeof(InputPicture));
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memset(&OutputPicture, 0, sizeof(OutputPicture));
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PPMode = pp_get_mode_by_name_and_quality((char *)APPString, AQuality);
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if (!PPMode)
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Env->ThrowError("FFPP: Invalid postprocesing settings");
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int Flags = GetPPCPUFlags(Env);
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if (vi.IsYV12()) {
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Flags |= PP_FORMAT_420;
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} else if (vi.IsYUY2()) {
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Flags |= PP_FORMAT_422;
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SWSTo422P = sws_getContext(vi.width, vi.height, PIX_FMT_YUV422, vi.width, vi.height, PIX_FMT_YUV422P, GetSWSCPUFlags(Env) | SWS_BICUBIC, NULL, NULL, NULL);
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SWSFrom422P = sws_getContext(vi.width, vi.height, PIX_FMT_YUV422P, vi.width, vi.height, PIX_FMT_YUV422, GetSWSCPUFlags(Env) | SWS_BICUBIC, NULL, NULL, NULL);
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avpicture_alloc(&InputPicture, PIX_FMT_YUV422P, vi.width, vi.height);
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avpicture_alloc(&OutputPicture, PIX_FMT_YUV422P, vi.width, vi.height);
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} else {
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Env->ThrowError("FFPP: Only YV12 and YUY2 video supported");
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}
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PPContext = pp_get_context(vi.width, vi.height, Flags);
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if (!PPContext)
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Env->ThrowError("FFPP: Failed to create context");
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}
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FFPP::~FFPP() {
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if (PPMode)
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pp_free_mode(PPMode);
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if (PPContext)
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pp_free_context(PPContext);
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if (SWSTo422P)
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sws_freeContext(SWSTo422P);
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if (SWSFrom422P)
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sws_freeContext(SWSFrom422P);
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avpicture_free(&InputPicture);
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avpicture_free(&OutputPicture);
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}
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PVideoFrame FFPP::GetFrame(int n, IScriptEnvironment* Env) {
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PVideoFrame Src = child->GetFrame(n, Env);
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PVideoFrame Dst = Env->NewVideoFrame(vi);
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if (vi.IsYV12()) {
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uint8_t *SrcData[3] = {(uint8_t *)Src->GetReadPtr(PLANAR_Y), (uint8_t *)Src->GetReadPtr(PLANAR_U), (uint8_t *)Src->GetReadPtr(PLANAR_V)};
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int SrcStride[3] = {Src->GetPitch(PLANAR_Y), Src->GetPitch(PLANAR_U), Src->GetPitch(PLANAR_V)};
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uint8_t *DstData[3] = {Dst->GetWritePtr(PLANAR_Y), Dst->GetWritePtr(PLANAR_U), Dst->GetWritePtr(PLANAR_V)};
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int DstStride[3] = {Dst->GetPitch(PLANAR_Y), Dst->GetPitch(PLANAR_U), Dst->GetPitch(PLANAR_V)};
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pp_postprocess(SrcData, SrcStride, DstData, DstStride, vi.width, vi.height, NULL, 0, PPMode, PPContext, 0);
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} else if (vi.IsYUY2()) {
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uint8_t *SrcData[1] = {(uint8_t *)Src->GetReadPtr()};
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int SrcStride[1] = {Src->GetPitch()};
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sws_scale(SWSTo422P, SrcData, SrcStride, 0, vi.height, InputPicture.data, InputPicture.linesize);
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pp_postprocess(InputPicture.data, InputPicture.linesize, OutputPicture.data, OutputPicture.linesize, vi.width, vi.height, NULL, 0, PPMode, PPContext, 0);
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uint8_t *DstData[1] = {Dst->GetWritePtr()};
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int DstStride[1] = {Dst->GetPitch()};
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sws_scale(SWSFrom422P, OutputPicture.data, OutputPicture.linesize, 0, vi.height, DstData, DstStride);
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}
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return Dst;
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}
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