framereader: remove swscale (#22578)

selfdrive/ui/SConscript

@@ -111,7 +111,7 @@ if arch in ['x86_64', 'Darwin'] and os.path.exists(Dir("#tools/").get_abspath())
   replay_lib_src = ["replay/replay.cc", "replay/camera.cc", "replay/logreader.cc", "replay/framereader.cc", "replay/route.cc", "replay/util.cc"]
 
   replay_lib = qt_env.Library("qt_replay", replay_lib_src, LIBS=base_libs)
-  replay_libs = [replay_lib, 'avutil', 'avcodec', 'avformat', 'swscale', 'bz2', 'curl', 'yuv'] + qt_libs
+  replay_libs = [replay_lib, 'avutil', 'avcodec', 'avformat', 'bz2', 'curl', 'yuv'] + qt_libs
   qt_env.Program("replay/replay", ["replay/main.cc"], LIBS=replay_libs)
 
   qt_env.Program("watch3", ["watch3.cc"], LIBS=qt_libs)

selfdrive/ui/replay/framereader.cc

@@ -57,9 +57,6 @@ FrameReader::~FrameReader() {
   if (pFormatCtx_) {
     avformat_close_input(&pFormatCtx_);
   }
-  if (sws_ctx_) {
-    sws_freeContext(sws_ctx_);
-  }
 }
 
 bool FrameReader::load(const std::string &url) {
@@ -86,11 +83,6 @@ bool FrameReader::load(const std::string &url) {
   width = pCodecCtxOrig->width;
   height = pCodecCtxOrig->height;
 
-  sws_ctx_ = sws_getContext(width, height, AV_PIX_FMT_YUV420P,
-                            width, height, AV_PIX_FMT_BGR24,
-                            SWS_BILINEAR, NULL, NULL, NULL);
-  if (!sws_ctx_) return false;
-
   frames_.reserve(60 * 20);  // 20fps, one minute
   do {
     Frame &frame = frames_.emplace_back();

selfdrive/ui/replay/framereader.h

@@ -12,7 +12,6 @@
 extern "C" {
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
-#include <libswscale/swscale.h>
 }
 
 class FrameReader {
@@ -41,7 +40,6 @@ private:
 
   AVFormatContext *pFormatCtx_ = nullptr;
   AVCodecContext *pCodecCtx_ = nullptr;
-  struct SwsContext *sws_ctx_ = nullptr;
 
   std::mutex mutex_;
   std::condition_variable cv_decode_;