[FFmpeg-cvslog] avcodec/mediacodecdec: check ff_Build_SDK_INT return value

[Zhao Zhili]

ffmpeg | branch: master | Zhao Zhili <zhilizhao at tencent.com> | Tue Jan 10 19:35:46 2023 +0800| [9ea6d93218c7d4581584df5b5b86b5f4fe0196b1] | committer: Zhao Zhili

avcodec/mediacodecdec: check ff_Build_SDK_INT return value

Signed-off-by: Zhao Zhili <zhilizhao at tencent.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9ea6d93218c7d4581584df5b5b86b5f4fe0196b1
---

 libavcodec/mediacodecdec.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/libavcodec/mediacodecdec.c b/libavcodec/mediacodecdec.c
index 11f655a9aa..21464900d1 100644
--- a/libavcodec/mediacodecdec.c
+++ b/libavcodec/mediacodecdec.c
@@ -415,7 +415,13 @@ static av_cold int mediacodec_decode_init(AVCodecContext *avctx)
            s->ctx->codec_name, ret);
 
     sdk_int = ff_Build_SDK_INT(avctx);
-    if (sdk_int <= 23 &&
+    /* ff_Build_SDK_INT can fail when target API < 24 and JVM isn't available.
+     * If we don't check sdk_int > 0, the workaround might be enabled by
+     * mistake.
+     * JVM is required to make the workaround works reliably. On the other hand,
+     * missing a workaround should not be a serious issue, we do as best we can.
+     */
+    if (sdk_int > 0 && sdk_int <= 23 &&
         strcmp(s->ctx->codec_name, "OMX.amlogic.mpeg2.decoder.awesome") == 0) {
         av_log(avctx, AV_LOG_INFO, "Enabling workaround for %s on API=%d\n",
                s->ctx->codec_name, sdk_int);