Hi,
for hwdec on Android the wrapper attempts to blacklist known software decoders
also provided through the mediacodec API. The list isn't complete however and
ffmpeg might e.g. prefer slower "external" HEVC software decoding over its own
software decoder.
This patch completes the list of known software decoders, which are:
OMX.ffmpeg.*
see
https://github.com/AOSB/android_device_lge_hammerhead/blob/master/media_codecs.xml#L89
OMX.SEC.*
see
https://chromium.googlesource.com/chromium/src/+/refs/heads/lkgr/media/base/android/media_codec_util.cc#288
OMX.qcom.video.decoder.hevcswvdec
see
https://github.com/moonlight-stream/moonlight-android/blob/master/app/src/main/java/com/limelight/binding/video/MediaCodecHelper.java#L83
From fbc876a8763db254d4e26d00c8b4fcf9ea7e7183 Mon Sep 17 00:00:00 2001
From: sfan5 <sf...@live.de>
Date: Tue, 6 Mar 2018 18:47:35 +0100
Subject: [PATCH] avcodec/mediacodec_wrapper: blacklist more software decoders
Additionally blacklist ffmpeg, Samsung and Qualcomm
software implementations offered through MediaCodec.
---
libavcodec/mediacodec_wrapper.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/libavcodec/mediacodec_wrapper.c b/libavcodec/mediacodec_wrapper.c
index dbc37bf463..b12528500d 100644
--- a/libavcodec/mediacodec_wrapper.c
+++ b/libavcodec/mediacodec_wrapper.c
@@ -465,7 +465,12 @@ char *ff_AMediaCodecList_getCodecNameByType(const char *mime, int profile, int e
goto done;
}
- if (strstr(name, "OMX.google")) {
+ /* Skip software decoders */
+ if (
+ strstr(name, "OMX.google") ||
+ strstr(name, "OMX.ffmpeg") ||
+ strstr(name, "OMX.SEC") ||
+ !strcmp(name, "OMX.qcom.video.decoder.hevcswvdec")) {
av_freep(&name);
goto done_with_type;
}
--
2.16.2
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