From 17eaca652e24ba3e441b8e60e626fdaec66f988d Mon Sep 17 00:00:00 2001
From: Jonathan Thomas <jonathan@openshot.org>
Date: Thu, 10 Nov 2022 11:46:38 -0600
Subject: [PATCH] Add additional decoding logging inside GetAVFrame method -
 failing on Windows and trying to debug

---
 src/FFmpegReader.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/FFmpegReader.cpp b/src/FFmpegReader.cpp
index 7e69f012..2b94b28b 100644
--- a/src/FFmpegReader.cpp
+++ b/src/FFmpegReader.cpp
@@ -1112,8 +1112,16 @@ bool FFmpegReader::GetAVFrame() {
 		hw_de_av_device_type = hw_de_av_device_type_global;
 	#endif // USE_HW_ACCEL
 		if (send_packet_err < 0 && send_packet_err != AVERROR_EOF) {
-			ZmqLogger::Instance()->AppendDebugMethod("FFmpegReader::GetAVFrame (Packet not sent)",
-											"send_packet_err", send_packet_err);
+            ZmqLogger::Instance()->AppendDebugMethod("FFmpegReader::GetAVFrame (Packet not sent)", "send_packet_err", send_packet_err);
+            if (send_packet_err == AVERROR(EAGAIN)) {
+                ZmqLogger::Instance()->AppendDebugMethod("FFmpegReader::GetAVFrame (AVERROR(EAGAIN) user must read output with avcodec_receive_frame()");
+            }
+            if (send_packet_err == AVERROR(EINVAL)) {
+                ZmqLogger::Instance()->AppendDebugMethod("FFmpegReader::GetAVFrame (AVERROR(EINVAL) codec not opened, it is an encoder, or requires flush");
+            }
+            if (send_packet_err == AVERROR(ENOMEM)) {
+                ZmqLogger::Instance()->AppendDebugMethod("FFmpegReader::GetAVFrame (AVERRORAVERROR(ENOMEM) failed to add packet to internal queue, or similar other errors: legitimate decoding errors");
+            }
 		}
 		else {
 			int receive_frame_err = 0;