1 #include "../../stdafx.h"
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5 #include <tbb/concurrent_unordered_map.h>
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6 #include <tbb/concurrent_queue.h>
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8 #include <core/producer/frame/pixel_format.h>
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9 #include <core/producer/frame/image_transform.h>
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10 #include <core/producer/frame/frame_factory.h>
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11 #include <core/producer/frame_producer.h>
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12 #include <core/mixer/write_frame.h>
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14 #include <common/memory/memcpy.h>
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16 #if defined(_MSC_VER)
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17 #pragma warning (push)
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18 #pragma warning (disable : 4244)
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22 #include <libswscale/swscale.h>
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23 #include <libavcodec/avcodec.h>
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24 #include <libavfilter/avfilter.h>
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26 #if defined(_MSC_VER)
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27 #pragma warning (pop)
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32 core::video_mode::type get_mode(AVFrame& frame)
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34 if(!frame.interlaced_frame)
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35 return core::video_mode::progressive;
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37 return frame.top_field_first ? core::video_mode::upper : core::video_mode::lower;
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40 core::pixel_format::type get_pixel_format(PixelFormat pix_fmt)
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44 case PIX_FMT_GRAY8: return core::pixel_format::gray;
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45 case PIX_FMT_BGRA: return core::pixel_format::bgra;
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46 case PIX_FMT_ARGB: return core::pixel_format::argb;
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47 case PIX_FMT_RGBA: return core::pixel_format::rgba;
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48 case PIX_FMT_ABGR: return core::pixel_format::abgr;
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49 case PIX_FMT_YUV444P: return core::pixel_format::ycbcr;
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50 case PIX_FMT_YUV422P: return core::pixel_format::ycbcr;
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51 case PIX_FMT_YUV420P: return core::pixel_format::ycbcr;
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52 case PIX_FMT_YUV411P: return core::pixel_format::ycbcr;
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53 case PIX_FMT_YUV410P: return core::pixel_format::ycbcr;
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54 case PIX_FMT_YUVA420P: return core::pixel_format::ycbcra;
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55 default: return core::pixel_format::invalid;
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59 PixelFormat get_ffmpeg_pixel_format(const core::pixel_format_desc& format_desc)
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61 switch(format_desc.pix_fmt)
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63 case core::pixel_format::gray: return PIX_FMT_GRAY8;
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64 case core::pixel_format::bgra: return PIX_FMT_BGRA;
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65 case core::pixel_format::argb: return PIX_FMT_ARGB;
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66 case core::pixel_format::rgba: return PIX_FMT_RGBA;
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67 case core::pixel_format::abgr: return PIX_FMT_ABGR;
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68 case core::pixel_format::ycbcra: return PIX_FMT_YUVA420P;
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69 case core::pixel_format::ycbcr:
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70 auto planes = format_desc.planes;
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71 if(planes[0].height == planes[1].height)
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73 if(planes[0].width == planes[1].width)
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74 return PIX_FMT_YUV444P;
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75 else if(planes[0].width/2 == planes[1].width)
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76 return PIX_FMT_YUV422P;
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77 else if(planes[0].width/4 == planes[1].width)
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78 return PIX_FMT_YUV411P;
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80 if(planes[0].height/2 == planes[1].height)
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82 if(planes[0].width/2 == planes[1].width)
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83 return PIX_FMT_YUV420P;
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85 if(planes[0].height/4 == planes[1].height)
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87 if(planes[0].width/4 == planes[1].width)
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88 return PIX_FMT_YUV410P;
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91 return PIX_FMT_NONE;
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94 safe_ptr<AVFrame> as_av_frame(const safe_ptr<core::write_frame>& frame)
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96 auto desc = frame->get_pixel_format_desc();
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97 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);
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98 avcodec_get_frame_defaults(av_frame.get());
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100 for(size_t n = 0; n < desc.planes.size(); ++n)
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102 av_frame->data[n] = frame->image_data(n).begin();
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103 av_frame->linesize[n] = desc.planes[n].width;
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106 av_frame->format = get_ffmpeg_pixel_format(desc);
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107 av_frame->width = desc.planes[0].width;
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108 av_frame->height = desc.planes[0].height;
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110 if(frame->get_type() != core::video_mode::progressive)
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112 av_frame->interlaced_frame = 1;
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113 av_frame->top_field_first = frame->get_type() == core::video_mode::upper ? 1 : 0;
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119 core::pixel_format_desc get_pixel_format_desc(PixelFormat pix_fmt, size_t width, size_t height)
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122 AVPicture dummy_pict;
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123 avpicture_fill(&dummy_pict, nullptr, pix_fmt, width, height);
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125 core::pixel_format_desc desc;
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126 desc.pix_fmt = get_pixel_format(pix_fmt);
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128 switch(desc.pix_fmt)
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130 case core::pixel_format::gray:
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132 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));
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135 case core::pixel_format::bgra:
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136 case core::pixel_format::argb:
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137 case core::pixel_format::rgba:
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138 case core::pixel_format::abgr:
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140 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/4, height, 4));
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143 case core::pixel_format::ycbcr:
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144 case core::pixel_format::ycbcra:
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146 // Find chroma height
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147 size_t size2 = dummy_pict.data[2] - dummy_pict.data[1];
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148 size_t h2 = size2/dummy_pict.linesize[1];
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150 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));
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151 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[1], h2, 1));
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152 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[2], h2, 1));
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154 if(desc.pix_fmt == core::pixel_format::ycbcra)
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155 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[3], height, 1));
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159 desc.pix_fmt = core::pixel_format::invalid;
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164 bool try_make_gray(const safe_ptr<AVFrame>& frame)
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166 auto pix_fmt = get_pixel_format(static_cast<PixelFormat>(frame->format));
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167 if(pix_fmt != core::pixel_format::invalid)
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168 frame->format = PIX_FMT_GRAY8;
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170 return pix_fmt != core::pixel_format::invalid;
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173 safe_ptr<core::write_frame> make_write_frame(const void* tag, const safe_ptr<AVFrame>& decoded_frame, const safe_ptr<core::frame_factory>& frame_factory, int hints)
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175 static tbb::concurrent_unordered_map<size_t, tbb::concurrent_queue<std::shared_ptr<SwsContext>>> sws_contexts_;
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177 const auto width = decoded_frame->width;
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178 const auto height = decoded_frame->height;
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179 auto desc = get_pixel_format_desc(static_cast<PixelFormat>(decoded_frame->format), width, height);
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181 if(desc.pix_fmt == core::pixel_format::invalid)
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183 auto pix_fmt = static_cast<PixelFormat>(decoded_frame->format);
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185 auto write = frame_factory->create_frame(tag, desc.pix_fmt != core::pixel_format::invalid ? desc : get_pixel_format_desc(PIX_FMT_BGRA, width, height));
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186 write->set_type(get_mode(*decoded_frame));
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188 std::shared_ptr<SwsContext> sws_context;
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190 //CASPAR_LOG(warning) << "Hardware accelerated color transform not supported.";
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192 size_t key = width << 20 | height << 8 | pix_fmt;
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194 auto& pool = sws_contexts_[key];
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196 if(!pool.try_pop(sws_context))
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199 sws_context.reset(sws_getContext(width, height, pix_fmt, width, height, PIX_FMT_BGRA, SWS_BILINEAR, nullptr, nullptr, ¶m), sws_freeContext);
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204 BOOST_THROW_EXCEPTION(operation_failed() << msg_info("Could not create software scaling context.") <<
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205 boost::errinfo_api_function("sws_getContext"));
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208 // Use sws_scale when provided colorspace has no hw-accel.
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209 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);
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210 avcodec_get_frame_defaults(av_frame.get());
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211 avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), write->image_data().begin(), PIX_FMT_BGRA, width, height);
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213 sws_scale(sws_context.get(), decoded_frame->data, decoded_frame->linesize, 0, height, av_frame->data, av_frame->linesize);
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214 pool.push(sws_context);
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222 if(hints & core::frame_producer::ALPHA_HINT)
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223 desc = get_pixel_format_desc(PIX_FMT_GRAY8, width, height);
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225 auto write = frame_factory->create_frame(tag, desc.pix_fmt != core::pixel_format::invalid ? desc : get_pixel_format_desc(PIX_FMT_BGRA, width, height));
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226 write->set_type(get_mode(*decoded_frame));
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228 tbb::parallel_for(0, static_cast<int>(desc.planes.size()), 1, [&](int n)
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230 auto plane = desc.planes[n];
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231 auto result = write->image_data(n).begin();
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232 auto decoded = decoded_frame->data[n];
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233 auto decoded_linesize = decoded_frame->linesize[n];
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235 // Copy line by line since ffmpeg sometimes pads each line.
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236 tbb::parallel_for(tbb::blocked_range<size_t>(0, static_cast<int>(desc.planes[n].height)), [&](const tbb::blocked_range<size_t>& r)
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238 for(size_t y = r.begin(); y != r.end(); ++y)
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239 fast_memcpy(result + y*plane.linesize, decoded + y*decoded_linesize, plane.linesize);
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