From f5090b13172b44cf413f46ef9540f2c070aa2a0e Mon Sep 17 00:00:00 2001
From: Mike Sinkovsky <msink@users.noreply.github.com>
Date: Thu, 3 May 2018 18:01:53 +0500
Subject: [PATCH] samples/videoplayer: migrate from libavresample to
 libswresample (#1551)

---
 samples/videoplayer/README.md                        |  2 +-
 samples/videoplayer/src/main/c_interop/ffmpeg.def    | 12 ++++++------
 samples/videoplayer/src/main/kotlin/DecoderWorker.kt |  8 ++++----
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/samples/videoplayer/README.md b/samples/videoplayer/README.md
index b1d47528baa..5e0059f5948 100644
--- a/samples/videoplayer/README.md
+++ b/samples/videoplayer/README.md
@@ -7,7 +7,7 @@ ffmpeg and SDL2 is needed for that to work, i.e.
      port install ffmpeg-devel
      brew install ffmpeg sdl2
      apt install libavcodec-dev libavformat-dev libavutil-dev libswscale-dev \
-                 libavresample-dev
+                 libswresample-dev
      apt install libsdl2-dev
      pacman -S mingw-w64-x86_64-SDL2 mingw-w64-x86_64-ffmpeg
 
diff --git a/samples/videoplayer/src/main/c_interop/ffmpeg.def b/samples/videoplayer/src/main/c_interop/ffmpeg.def
index 28321009864..d61602082a2 100644
--- a/samples/videoplayer/src/main/c_interop/ffmpeg.def
+++ b/samples/videoplayer/src/main/c_interop/ffmpeg.def
@@ -1,9 +1,9 @@
 package = ffmpeg
 headers = libavcodec/avcodec.h libavformat/avformat.h libavutil/pixfmt.h libavutil/opt.h \
-          libswscale/swscale.h libavresample/avresample.h
+          libswscale/swscale.h libswresample/swresample.h
 headerFilter = libavcodec/** libavformat/** libavutil/** \
-          libswscale/** libavresample/**
-linkerOpts = -lavutil -lavformat -lavcodec -lswscale -lavresample
+          libswscale/** libswresample/**
+linkerOpts = -lavutil -lavformat -lavcodec -lswscale -lswresample
 ---
 
 static void av_buffer_unref2(AVBufferRef* ref) {
@@ -21,7 +21,7 @@ static void avformat_free_context2(AVFormatContext* ref) {
     avformat_free_context(&copy);
 }
 
-static void avresample_free2(AVAudioResampleContext* ref) {
-    AVAudioResampleContext* copy = ref;
-    avresample_free(&copy);
+static void swr_free2(SwrContext* ref) {
+    SwrContext* copy = ref;
+    swr_free(&copy);
 }
diff --git a/samples/videoplayer/src/main/kotlin/DecoderWorker.kt b/samples/videoplayer/src/main/kotlin/DecoderWorker.kt
index 249001d2d1e..46b90cc8441 100644
--- a/samples/videoplayer/src/main/kotlin/DecoderWorker.kt
+++ b/samples/videoplayer/src/main/kotlin/DecoderWorker.kt
@@ -190,8 +190,8 @@ private class AudioDecoder(
         disposable(create = ::av_frame_alloc, dispose = ::av_frame_unref).pointed
     private val resampledAudioFrame: AVFrame =
         disposable(create = ::av_frame_alloc, dispose = ::av_frame_unref).pointed
-    private val resampleContext: CPointer<AVAudioResampleContext> =
-        disposable(create = ::avresample_alloc_context, dispose = ::avresample_free2)
+    private val resampleContext: CPointer<SwrContext> =
+        disposable(create = ::swr_alloc, dispose = ::swr_free2)
 
     private val audioQueue = Queue<AudioFrame>(100)
 
@@ -214,7 +214,7 @@ private class AudioDecoder(
             setResampleOpt("in_sample_fmt", sample_fmt)
             setResampleOpt("out_sample_fmt", output.sampleFormat)
         }
-        avresample_open(resampleContext)
+        swr_init(resampleContext)
     }
 
     private fun setResampleOpt(name: String, value: Int) =
@@ -248,7 +248,7 @@ private class AudioDecoder(
             val size = avcodec_decode_audio4(audioCodecContext.ptr, audioFrame.ptr, frameFinished.ptr, packet.ptr)
             if (frameFinished.value != 0) {
                 // Put audio frame to decoder's queue.
-                avresample_convert_frame(resampleContext, resampledAudioFrame.ptr, audioFrame.ptr).checkAVError()
+                swr_convert_frame(resampleContext, resampledAudioFrame.ptr, audioFrame.ptr).checkAVError()
                 with (resampledAudioFrame) {
                     val audioFrameSize = av_samples_get_buffer_size(null, channels, nb_samples, format, 1)
                     val buffer = av_buffer_alloc(audioFrameSize)!!