video_replay: add AV1 support to IVF filewriter

which is already supported in modules/video_coding/utility/ivf_file_reader.cc

BUG=None

Change-Id: I7b00659dc460d372312dff2eb53837a321ab16af
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/262246
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37390}
diff --git a/rtc_tools/video_replay.cc b/rtc_tools/video_replay.cc
index 024f001..416da72 100644
--- a/rtc_tools/video_replay.cc
+++ b/rtc_tools/video_replay.cc
@@ -290,6 +290,8 @@
       video_codec_type_ = VideoCodecType::kVideoCodecVP9;
     } else if (codec == "H264") {
       video_codec_type_ = VideoCodecType::kVideoCodecH264;
+    } else if (codec == "AV1") {
+      video_codec_type_ = VideoCodecType::kVideoCodecAV1;
     } else {
       RTC_LOG(LS_ERROR) << "Unsupported video codec " << codec;
       RTC_DCHECK_NOTREACHED();