From a7425f712aeed6e18204a68810529895fdbdb1be Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Wed, 17 Feb 2021 16:51:09 +0100
Subject: [PATCH] avcodec/mediacodec_wrapper: use
 MediaCodecInfo.isSoftwareOnly() when available

Added in Android 10 it provides a reliable way of filtering out
software decoders, unlike existing string-based checks.
---
 libavcodec/mediacodec_wrapper.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/libavcodec/mediacodec_wrapper.c b/libavcodec/mediacodec_wrapper.c
index f1945bcfc0..c829941d6b 100644
--- a/libavcodec/mediacodec_wrapper.c
+++ b/libavcodec/mediacodec_wrapper.c
@@ -45,6 +45,7 @@ struct JNIAMediaCodecListFields {
     jmethodID get_codec_capabilities_id;
     jmethodID get_supported_types_id;
     jmethodID is_encoder_id;
+    jmethodID is_software_only_id;
 
     jclass codec_capabilities_class;
     jfieldID color_formats_id;
@@ -81,6 +82,7 @@ static const struct FFJniField jni_amediacodeclist_mapping[] = {
         { "android/media/MediaCodecInfo", "getCapabilitiesForType", "(Ljava/lang/String;)Landroid/media/MediaCodecInfo$CodecCapabilities;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, get_codec_capabilities_id), 1 },
         { "android/media/MediaCodecInfo", "getSupportedTypes", "()[Ljava/lang/String;", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, get_supported_types_id), 1 },
         { "android/media/MediaCodecInfo", "isEncoder", "()Z", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, is_encoder_id), 1 },
+        { "android/media/MediaCodecInfo", "isSoftwareOnly", "()Z", FF_JNI_METHOD, offsetof(struct JNIAMediaCodecListFields, is_software_only_id), 0 },
 
     { "android/media/MediaCodecInfo$CodecCapabilities", NULL, NULL, FF_JNI_CLASS, offsetof(struct JNIAMediaCodecListFields, codec_capabilities_class), 1 },
         { "android/media/MediaCodecInfo$CodecCapabilities", "colorFormats", "[I", FF_JNI_FIELD, offsetof(struct JNIAMediaCodecListFields, color_formats_id), 1 },
@@ -441,6 +443,17 @@ char *ff_AMediaCodecList_getCodecNameByType(const char *mime, int profile, int e
             goto done_with_info;
         }
 
+        if (jfields.is_software_only_id) {
+            int is_software_only = (*env)->CallBooleanMethod(env, info, jfields.is_software_only_id);
+            if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
+                goto done;
+            }
+
+            if (is_software_only) {
+                goto done_with_info;
+            }
+        }
+
         codec_name = (*env)->CallObjectMethod(env, info, jfields.get_name_id);
         if (ff_jni_exception_check(env, 1, log_ctx) < 0) {
             goto done;