diff options
| author | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2012-04-06 15:25:05 +0200 |
|---|---|---|
| committer | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2012-04-07 11:48:20 +0200 |
| commit | ecd7455e9626cdc38e7471ce938a8640bab688fa (patch) | |
| tree | 038f301c8f849e3e9310d93a67dfcc45245e970c /libavcodec | |
| parent | 76e8b336cd12f49ebbf510609b323c6f25acd415 (diff) | |
| download | ffmpeg-ecd7455e9626cdc38e7471ce938a8640bab688fa.tar.gz | |
aacenc: Fix issues with huge values of bit_rate.
Do not pointlessly call ff_alloc_packet2 multiple times,
and fix an infinite loop by clamping the maximum
number of bits to target in the algorithm that does
not use lambda.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/aaccoder.c | 3 | ||||
| -rw-r--r-- | libavcodec/aacenc.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/libavcodec/aaccoder.c b/libavcodec/aaccoder.c index 25187b7c87..b6fefd3e62 100644 --- a/libavcodec/aaccoder.c +++ b/libavcodec/aaccoder.c @@ -721,6 +721,9 @@ static void search_for_quantizers_twoloop(AVCodecContext *avctx, int allz = 0; float minthr = INFINITY; + // for values above this the decoder might end up in an endless loop + // due to always having more bits than what can be encoded. + destbits = FFMIN(destbits, 5800); //XXX: some heuristic to determine initial quantizers will reduce search time //determine zero bands and upper limits for (w = 0; w < sce->ics.num_windows; w += sce->ics.group_len[w]) { diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c index 3ac2ad890d..76e4e8753e 100644 --- a/libavcodec/aacenc.c +++ b/libavcodec/aacenc.c @@ -571,11 +571,11 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, } start_ch += chans; } + if ((ret = ff_alloc_packet2(avctx, avpkt, 768 * s->channels))) + return ret; do { int frame_bits; - if ((ret = ff_alloc_packet2(avctx, avpkt, 768 * s->channels))) - return ret; init_put_bits(&s->pb, avpkt->data, avpkt->size); if ((avctx->frame_number & 0xFF)==1 && !(avctx->flags & CODEC_FLAG_BITEXACT)) |