On Tue, 7 Aug 2012, Alex Converse wrote:

Fixes MP4 files where the first frame is broken.
---
libavcodec/aacdec.c |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index 958c9d2..1c59ec5 100644
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -365,7 +365,7 @@ static void push_output_configuration(AACContext *ac) {
 * configuration is unlocked.
 */
static void pop_output_configuration(AACContext *ac) {
-    if (ac->oc[1].status != OC_LOCKED) {
+    if (ac->oc[1].status != OC_LOCKED && ac->oc[0].status != OC_NONE) {
        ac->oc[1] = ac->oc[0];
        ac->avctx->channels = ac->oc[1].channels;
        ac->avctx->channel_layout = ac->oc[1].channel_layout;
--
1.7.7.3

OK - looks sensible to me.

// Martin
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