2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG (www.casparcg.com).
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6 * CasparCG is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation, either version 3 of the License, or
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9 * (at your option) any later version.
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11 * CasparCG is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
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19 * Author: Robert Nagy, ronag89@gmail.com
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22 #include "../../stdafx.h"
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28 #include "../tbb_avcodec.h"
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29 #include "../../ffmpeg_error.h"
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31 #include <tbb/concurrent_unordered_map.h>
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32 #include <tbb/concurrent_queue.h>
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34 #include <core/frame/frame_transform.h>
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35 #include <core/frame/frame_factory.h>
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36 #include <core/frame/frame.h>
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37 #include <core/producer/frame_producer.h>
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39 #include <common/except.h>
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40 #include <common/array.h>
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42 #include <tbb/parallel_for.h>
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44 #include <common/assert.h>
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45 #include <boost/filesystem.hpp>
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46 #include <boost/lexical_cast.hpp>
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50 #if defined(_MSC_VER)
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51 #pragma warning (push)
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52 #pragma warning (disable : 4244)
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56 #include <libswscale/swscale.h>
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57 #include <libavcodec/avcodec.h>
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58 #include <libavformat/avformat.h>
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60 #if defined(_MSC_VER)
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61 #pragma warning (pop)
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64 namespace caspar { namespace ffmpeg {
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66 std::shared_ptr<core::audio_buffer> flush_audio()
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68 static std::shared_ptr<core::audio_buffer> audio(new core::audio_buffer());
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72 std::shared_ptr<core::audio_buffer> empty_audio()
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74 static std::shared_ptr<core::audio_buffer> audio(new core::audio_buffer());
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78 std::shared_ptr<AVFrame> flush_video()
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80 static std::shared_ptr<AVFrame> video(avcodec_alloc_frame(), av_free);
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84 std::shared_ptr<AVFrame> empty_video()
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86 static std::shared_ptr<AVFrame> video(avcodec_alloc_frame(), av_free);
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90 spl::shared_ptr<AVPacket> flush_packet()
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92 static spl::shared_ptr<AVPacket> pkt(new AVPacket());
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96 spl::shared_ptr<AVPacket> null_packet()
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98 static spl::shared_ptr<AVPacket> pkt(new AVPacket());
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103 core::field_mode get_mode(const AVFrame& frame)
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105 if(!frame.interlaced_frame)
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106 return core::field_mode::progressive;
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108 return frame.top_field_first ? core::field_mode::upper : core::field_mode::lower;
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111 core::pixel_format get_pixel_format(PixelFormat pix_fmt)
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115 case PIX_FMT_GRAY8: return core::pixel_format::gray;
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116 case PIX_FMT_RGB24: return core::pixel_format::rgb;
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117 case PIX_FMT_BGR24: return core::pixel_format::bgr;
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118 case PIX_FMT_BGRA: return core::pixel_format::bgra;
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119 case PIX_FMT_ARGB: return core::pixel_format::argb;
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120 case PIX_FMT_RGBA: return core::pixel_format::rgba;
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121 case PIX_FMT_ABGR: return core::pixel_format::abgr;
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122 case PIX_FMT_YUV444P: return core::pixel_format::ycbcr;
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123 case PIX_FMT_YUV422P: return core::pixel_format::ycbcr;
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124 case PIX_FMT_YUV420P: return core::pixel_format::ycbcr;
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125 case PIX_FMT_YUV411P: return core::pixel_format::ycbcr;
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126 case PIX_FMT_YUV410P: return core::pixel_format::ycbcr;
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127 case PIX_FMT_YUVA420P: return core::pixel_format::ycbcra;
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128 default: return core::pixel_format::invalid;
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132 core::pixel_format_desc pixel_format_desc(PixelFormat pix_fmt, int width, int height)
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135 AVPicture dummy_pict;
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136 avpicture_fill(&dummy_pict, nullptr, pix_fmt, width, height);
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138 core::pixel_format_desc desc = get_pixel_format(pix_fmt);
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140 switch(desc.format.value())
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142 case core::pixel_format::gray:
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143 case core::pixel_format::luma:
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145 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));
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148 case core::pixel_format::bgr:
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149 case core::pixel_format::rgb:
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151 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/3, height, 3));
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154 case core::pixel_format::bgra:
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155 case core::pixel_format::argb:
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156 case core::pixel_format::rgba:
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157 case core::pixel_format::abgr:
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159 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0]/4, height, 4));
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162 case core::pixel_format::ycbcr:
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163 case core::pixel_format::ycbcra:
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165 // Find chroma height
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166 int size2 = static_cast<int>(dummy_pict.data[2] - dummy_pict.data[1]);
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167 int h2 = size2/dummy_pict.linesize[1];
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169 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[0], height, 1));
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170 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[1], h2, 1));
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171 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[2], h2, 1));
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173 if(desc.format == core::pixel_format::ycbcra)
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174 desc.planes.push_back(core::pixel_format_desc::plane(dummy_pict.linesize[3], height, 1));
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178 desc.format = core::pixel_format::invalid;
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183 core::mutable_frame make_frame(const void* tag, const spl::shared_ptr<AVFrame>& decoded_frame, double fps, core::frame_factory& frame_factory)
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185 static tbb::concurrent_unordered_map<int64_t, tbb::concurrent_queue<std::shared_ptr<SwsContext>>> sws_contvalid_exts_;
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187 if(decoded_frame->width < 1 || decoded_frame->height < 1)
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188 return frame_factory.create_frame(tag, core::pixel_format_desc(core::pixel_format::invalid));
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190 const auto width = decoded_frame->width;
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191 const auto height = decoded_frame->height;
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192 auto desc = pixel_format_desc(static_cast<PixelFormat>(decoded_frame->format), width, height);
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194 if(desc.format == core::pixel_format::invalid)
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196 auto pix_fmt = static_cast<PixelFormat>(decoded_frame->format);
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197 auto target_pix_fmt = PIX_FMT_BGRA;
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199 if(pix_fmt == PIX_FMT_UYVY422)
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200 target_pix_fmt = PIX_FMT_YUV422P;
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201 else if(pix_fmt == PIX_FMT_YUYV422)
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202 target_pix_fmt = PIX_FMT_YUV422P;
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203 else if(pix_fmt == PIX_FMT_UYYVYY411)
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204 target_pix_fmt = PIX_FMT_YUV411P;
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205 else if(pix_fmt == PIX_FMT_YUV420P10)
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206 target_pix_fmt = PIX_FMT_YUV420P;
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207 else if(pix_fmt == PIX_FMT_YUV422P10)
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208 target_pix_fmt = PIX_FMT_YUV422P;
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209 else if(pix_fmt == PIX_FMT_YUV444P10)
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210 target_pix_fmt = PIX_FMT_YUV444P;
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212 auto target_desc = pixel_format_desc(target_pix_fmt, width, height);
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214 auto write = frame_factory.create_frame(tag, target_desc, fps, get_mode(*decoded_frame));
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216 std::shared_ptr<SwsContext> sws_context;
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218 //CASPAR_LOG(warning) << "Hardware accelerated color transform not supported.";
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220 int64_t key = ((static_cast<int64_t>(width) << 32) & 0xFFFF00000000) |
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221 ((static_cast<int64_t>(height) << 16) & 0xFFFF0000) |
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222 ((static_cast<int64_t>(pix_fmt) << 8) & 0xFF00) |
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223 ((static_cast<int64_t>(target_pix_fmt) << 0) & 0xFF);
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225 auto& pool = sws_contvalid_exts_[key];
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227 if(!pool.try_pop(sws_context))
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230 sws_context.reset(sws_getContext(width, height, pix_fmt, width, height, target_pix_fmt, SWS_BILINEAR, nullptr, nullptr, ¶m), sws_freeContext);
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235 BOOST_THROW_EXCEPTION(operation_failed() << msg_info("Could not create software scaling context.") <<
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236 boost::errinfo_api_function("sws_getContext"));
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239 spl::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);
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240 avcodec_get_frame_defaults(av_frame.get());
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241 if(target_pix_fmt == PIX_FMT_BGRA)
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243 auto size = avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), write.image_data(0).begin(), PIX_FMT_BGRA, width, height);
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244 CASPAR_VERIFY(size == write.image_data(0).size());
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248 av_frame->width = width;
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249 av_frame->height = height;
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250 for(int n = 0; n < target_desc.planes.size(); ++n)
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252 av_frame->data[n] = write.image_data(n).begin();
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253 av_frame->linesize[n] = target_desc.planes[n].linesize;
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257 sws_scale(sws_context.get(), decoded_frame->data, decoded_frame->linesize, 0, height, av_frame->data, av_frame->linesize);
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258 pool.push(sws_context);
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260 return std::move(write);
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264 auto write = frame_factory.create_frame(tag, desc, fps, get_mode(*decoded_frame));
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266 for(int n = 0; n < static_cast<int>(desc.planes.size()); ++n)
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268 auto plane = desc.planes[n];
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269 auto result = write.image_data(n).begin();
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270 auto decoded = decoded_frame->data[n];
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271 auto decoded_linesize = decoded_frame->linesize[n];
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273 CASPAR_ASSERT(decoded);
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274 CASPAR_ASSERT(write.image_data(n).begin());
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276 // Copy line by line since ffmpeg sometimes pads each line.
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277 tbb::affinity_partitioner ap;
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278 tbb::parallel_for(tbb::blocked_range<int>(0, desc.planes[n].height), [&](const tbb::blocked_range<int>& r)
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280 for(int y = r.begin(); y != r.end(); ++y)
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281 A_memcpy(result + y*plane.linesize, decoded + y*decoded_linesize, plane.linesize);
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285 return std::move(write);
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289 spl::shared_ptr<AVFrame> make_av_frame(core::mutable_frame& frame)
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291 std::array<uint8_t*, 4> data = {};
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292 for(int n = 0; n < frame.pixel_format_desc().planes.size(); ++n)
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293 data[n] = frame.image_data(n).begin();
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295 return make_av_frame(data, frame.pixel_format_desc());
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298 spl::shared_ptr<AVFrame> make_av_frame(std::array<uint8_t*, 4> data, const core::pixel_format_desc& pix_desc)
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300 spl::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);
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301 avcodec_get_frame_defaults(av_frame.get());
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303 auto planes = pix_desc.planes;
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304 auto format = pix_desc.format.value();
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306 av_frame->width = planes[0].width;
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307 av_frame->height = planes[0].height;
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308 for(int n = 0; n < planes.size(); ++n)
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310 av_frame->data[n] = data[n];
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311 av_frame->linesize[n] = planes[n].linesize;
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316 case core::pixel_format::rgb:
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317 av_frame->format = PIX_FMT_RGB24;
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319 case core::pixel_format::bgr:
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320 av_frame->format = PIX_FMT_BGR24;
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322 case core::pixel_format::rgba:
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323 av_frame->format = PIX_FMT_RGBA;
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325 case core::pixel_format::argb:
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326 av_frame->format = PIX_FMT_ARGB;
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328 case core::pixel_format::bgra:
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329 av_frame->format = PIX_FMT_BGRA;
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331 case core::pixel_format::abgr:
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332 av_frame->format = PIX_FMT_ABGR;
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334 case core::pixel_format::gray:
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335 av_frame->format = PIX_FMT_GRAY8;
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337 case core::pixel_format::ycbcr:
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339 int y_w = planes[0].width;
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340 int y_h = planes[0].height;
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341 int c_w = planes[1].width;
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342 int c_h = planes[1].height;
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344 if(c_h == y_h && c_w == y_w)
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345 av_frame->format = PIX_FMT_YUV444P;
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346 else if(c_h == y_h && c_w*2 == y_w)
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347 av_frame->format = PIX_FMT_YUV422P;
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348 else if(c_h == y_h && c_w*4 == y_w)
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349 av_frame->format = PIX_FMT_YUV411P;
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350 else if(c_h*2 == y_h && c_w*2 == y_w)
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351 av_frame->format = PIX_FMT_YUV420P;
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352 else if(c_h*2 == y_h && c_w*4 == y_w)
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353 av_frame->format = PIX_FMT_YUV410P;
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357 case core::pixel_format::ycbcra:
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358 av_frame->format = PIX_FMT_YUVA420P;
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364 bool is_sane_fps(AVRational time_base)
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366 double fps = static_cast<double>(time_base.den) / static_cast<double>(time_base.num);
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367 return fps > 20.0 && fps < 65.0;
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370 AVRational fix_time_base(AVRational time_base)
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372 if(time_base.num == 1)
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373 time_base.num = static_cast<int>(std::pow(10.0, static_cast<int>(std::log10(static_cast<float>(time_base.den)))-1));
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375 if(!is_sane_fps(time_base))
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377 auto tmp = time_base;
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379 if(is_sane_fps(tmp))
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386 double read_fps(AVFormatContext& context, double fail_value)
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388 auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);
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389 auto audio_index = av_find_best_stream(&context, AVMEDIA_TYPE_AUDIO, -1, -1, 0, 0);
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391 if(video_index > -1)
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393 const auto video_context = context.streams[video_index]->codec;
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394 const auto video_stream = context.streams[video_index];
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396 AVRational time_base = video_context->time_base;
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398 if(boost::filesystem::path(context.filename).extension().string() == ".flv")
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402 auto meta = read_flv_meta_info(context.filename);
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403 return boost::lexical_cast<double>(meta["framerate"]);
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412 time_base.num *= video_context->ticks_per_frame;
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414 if(!is_sane_fps(time_base))
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416 time_base = fix_time_base(time_base);
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418 if(!is_sane_fps(time_base) && audio_index > -1)
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420 auto& audio_context = *context.streams[audio_index]->codec;
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421 auto& audio_stream = *context.streams[audio_index];
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423 double duration_sec = audio_stream.duration / static_cast<double>(audio_context.sample_rate);
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425 time_base.num = static_cast<int>(duration_sec*100000.0);
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426 time_base.den = static_cast<int>(video_stream->nb_frames*100000);
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431 double fps = static_cast<double>(time_base.den) / static_cast<double>(time_base.num);
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433 double closest_fps = 0.0;
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434 for(int n = 0; n < core::video_format::count; ++n)
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436 auto format = core::video_format_desc(core::video_format(n));
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438 double diff1 = std::abs(format.fps - fps);
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439 double diff2 = std::abs(closest_fps - fps);
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442 closest_fps = format.fps;
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445 return closest_fps;
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448 return fail_value;
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451 void fix_meta_data(AVFormatContext& context)
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453 auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);
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455 if(video_index > -1)
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457 auto video_stream = context.streams[video_index];
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458 auto video_context = context.streams[video_index]->codec;
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460 if(boost::filesystem::path(context.filename).extension().string() == ".flv")
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464 auto meta = read_flv_meta_info(context.filename);
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465 double fps = boost::lexical_cast<double>(meta["framerate"]);
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466 video_stream->nb_frames = static_cast<int64_t>(boost::lexical_cast<double>(meta["duration"])*fps);
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472 auto stream_time = video_stream->time_base;
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473 auto duration = video_stream->duration;
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474 auto codec_time = video_context->time_base;
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475 auto ticks = video_context->ticks_per_frame;
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477 if(video_stream->nb_frames == 0)
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478 video_stream->nb_frames = (duration*stream_time.num*codec_time.den)/(stream_time.den*codec_time.num*ticks);
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483 spl::shared_ptr<AVPacket> create_packet()
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485 spl::shared_ptr<AVPacket> packet(new AVPacket, [](AVPacket* p)
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491 av_init_packet(packet.get());
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495 spl::shared_ptr<AVCodecContext> open_codec(AVFormatContext& context, enum AVMediaType type, int& index)
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498 index = THROW_ON_ERROR2(av_find_best_stream(&context, type, -1, -1, &decoder, 0), "");
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499 //if(strcmp(decoder->name, "prores") == 0 && decoder->next && strcmp(decoder->next->name, "prores_lgpl") == 0)
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500 // decoder = decoder->next;
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502 THROW_ON_ERROR2(tbb_avcodec_open(context.streams[index]->codec, decoder), "");
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503 return spl::shared_ptr<AVCodecContext>(context.streams[index]->codec, tbb_avcodec_close);
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506 spl::shared_ptr<AVFormatContext> open_input(const std::wstring& filename)
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508 AVFormatContext* weak_context = nullptr;
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509 THROW_ON_ERROR2(avformat_open_input(&weak_context, u8(filename).c_str(), nullptr, nullptr), filename);
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510 spl::shared_ptr<AVFormatContext> context(weak_context, av_close_input_file);
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511 THROW_ON_ERROR2(avformat_find_stream_info(weak_context, nullptr), filename);
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512 fix_meta_data(*context);
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516 std::wstring print_mode(int width, int height, double fps, bool interlaced)
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518 std::wostringstream fps_ss;
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519 fps_ss << std::fixed << std::setprecision(2) << (!interlaced ? fps : 2.0 * fps);
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521 return boost::lexical_cast<std::wstring>(width) + L"x" + boost::lexical_cast<std::wstring>(height) + (!interlaced ? L"p" : L"i") + fps_ss.str();
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524 bool is_valid_file(const std::wstring filename)
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526 static const std::vector<std::wstring> invalid_exts = boost::assign::list_of(L".png")(L".tga")(L".bmp")(L".jpg")(L".jpeg")(L".gif")(L".tiff")(L".tif")(L".jp2")(L".jpx")(L".j2k")(L".j2c");
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527 static std::vector<std::wstring> valid_exts = boost::assign::list_of(L".m2t")(L".mov")(L".mp4")(L".dv")(L".flv")(L".mpg")(L".wav")(L".mp3")(L".dnxhd")(L".h264")(L".prores");
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529 auto ext = boost::to_lower_copy(boost::filesystem::path(filename).extension().wstring());
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531 if(std::find(valid_exts.begin(), valid_exts.end(), ext) != valid_exts.end())
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534 if(std::find(invalid_exts.begin(), invalid_exts.end(), ext) != invalid_exts.end())
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537 auto u8filename = u8(filename);
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540 AVProbeData pb = {};
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541 pb.filename = u8filename.c_str();
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543 if(av_probe_input_format2(&pb, false, &score) != nullptr)
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546 std::ifstream file(filename);
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548 std::vector<unsigned char> buf;
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549 for(auto file_it = std::istreambuf_iterator<char>(file); file_it != std::istreambuf_iterator<char>() && buf.size() < 1024; ++file_it)
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550 buf.push_back(*file_it);
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555 pb.buf = buf.data();
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556 pb.buf_size = static_cast<int>(buf.size());
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558 return av_probe_input_format2(&pb, true, &score) != nullptr;
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561 std::wstring probe_stem(const std::wstring stem)
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563 auto stem2 = boost::filesystem::path(stem);
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564 auto dir = stem2.parent_path();
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565 for(auto it = boost::filesystem::directory_iterator(dir); it != boost::filesystem::directory_iterator(); ++it)
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567 if(boost::iequals(it->path().stem().wstring(), stem2.filename().wstring()) && is_valid_file(it->path().wstring()))
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568 return it->path().wstring();
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573 //void av_dup_frame(AVFrame* frame)
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575 // AVFrame* new_frame = avcodec_alloc_frame();
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578 // const uint8_t *src_data[4] = {0};
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579 // memcpy(const_cast<uint8_t**>(&src_data[0]), frame->data, 4);
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580 // const int src_linesizes[4] = {0};
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581 // memcpy(const_cast<int*>(&src_linesizes[0]), frame->linesize, 4);
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583 // av_image_alloc(new_frame->data, new_frame->linesize, new_frame->width, new_frame->height, frame->format, 16);
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585 // av_image_copy(new_frame->data, new_frame->linesize, src_data, src_linesizes, frame->format, new_frame->width, new_frame->height);
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