encoderd: update deprecated ffmpeg functions (#24501)

selfdrive/loggerd/encoder/ffmpeg_encoder.cc

@@ -47,7 +47,7 @@ FfmpegEncoder::~FfmpegEncoder() {
 }
 
 void FfmpegEncoder::encoder_open(const char* path) {
-  AVCodec *codec = avcodec_find_encoder(AV_CODEC_ID_FFVHUFF);
+  const AVCodec *codec = avcodec_find_encoder(AV_CODEC_ID_FFVHUFF);
 
   this->codec_ctx = avcodec_alloc_context3(codec);
   assert(this->codec_ctx);

selfdrive/loggerd/encoder/video_writer.cc

@@ -1,5 +1,3 @@
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-
 #include <cassert>
 #include <cstdlib>
 
@@ -23,11 +21,8 @@ VideoWriter::VideoWriter(const char *path, const char *filename, bool remuxing,
     assert(this->ofmt_ctx);
 
     // set codec correctly. needed?
-    av_register_all();
-
-    AVCodec *avcodec = NULL;
     assert(codec != cereal::EncodeIndex::Type::FULL_H_E_V_C);
-    avcodec = avcodec_find_encoder(raw ? AV_CODEC_ID_FFVHUFF : AV_CODEC_ID_H264);
+    const AVCodec *avcodec = avcodec_find_encoder(raw ? AV_CODEC_ID_FFVHUFF : AV_CODEC_ID_H264);
     assert(avcodec);
 
     this->codec_ctx = avcodec_alloc_context3(avcodec);
@@ -95,7 +90,7 @@ void VideoWriter::write(uint8_t *data, int len, long long timestamp, bool codecc
       int err = av_interleaved_write_frame(ofmt_ctx, &pkt);
       if (err < 0) { LOGW("ts encoder write issue"); }
 
-      av_free_packet(&pkt);
+      av_packet_unref(&pkt);
     }
   }
 }

selfdrive/loggerd/encoder/video_writer.h

@@ -4,6 +4,7 @@
 
 extern "C" {
 #include <libavformat/avformat.h>
+#include <libavcodec/avcodec.h>
 }
 
 #include "cereal/messaging/messaging.h"