[FFmpeg-devel] [PATCH] aacdec: don't return frames without data

[Andreas Cadhalpun]

Since commit 676a395a aac->frame->data is not necessarily allocated at
the end of aac_decode_frame_int if avctx->channels is 0.

In this case a bogus frame without any data, but non-zero nb_samples is
returned.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun at googlemail.com>
---
 libavcodec/aacdec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index d55df43..a405faf 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -3073,6 +3073,12 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data,
             AV_WL32(side, 2*AV_RL32(side));
     }
 
+    if (!ac->frame->data[0] && samples) {
+        av_log(avctx, AV_LOG_ERROR, "no frame data found\n");
+        err = AVERROR_INVALIDDATA;
+        goto fail;
+    }
+
     *got_frame_ptr = !!samples;
     if (samples) {
         ac->frame->nb_samples = samples;
-- 
2.1.4