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| author | Janne Grunau <janne-libav@jannau.net> | 2011-10-22 22:04:00 +0200 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2011-12-03 00:42:48 +0100 |
| commit | d268b79e3436107c11ee8bcdf9f3645368bb3fcd (patch) | |
| tree | 0b7906af43dfb4c18a0f5f35ae8fd203b76c9a57 /libavcodec/aacdec.c | |
| parent | fd095539d10bb440042e671f95306b16b0fec674 (diff) | |
| download | ffmpeg-d268b79e3436107c11ee8bcdf9f3645368bb3fcd.tar.gz | |
aac_latm: reconfigure decoder on audio specific config changes
Diffstat (limited to 'libavcodec/aacdec.c')
| -rw-r--r-- | libavcodec/aacdec.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c index a4fe2ee2cc..8e4b510354 100644 --- a/libavcodec/aacdec.c +++ b/libavcodec/aacdec.c @@ -2319,8 +2319,9 @@ static inline uint32_t latm_get_value(GetBitContext *b) static int latm_decode_audio_specific_config(struct LATMContext *latmctx, GetBitContext *gb, int asclen) { - AVCodecContext *avctx = latmctx->aac_ctx.avctx; - MPEG4AudioConfig m4ac; + AACContext *ac = &latmctx->aac_ctx; + AVCodecContext *avctx = ac->avctx; + MPEG4AudioConfig m4ac = {0}; int config_start_bit = get_bits_count(gb); int sync_extension = 0; int bits_consumed, esize; @@ -2335,18 +2336,23 @@ static int latm_decode_audio_specific_config(struct LATMContext *latmctx, av_log_missing_feature(latmctx->aac_ctx.avctx, "audio specific " "config not byte aligned.\n", 1); return AVERROR_INVALIDDATA; - } else { - bits_consumed = - decode_audio_specific_config(NULL, avctx, &m4ac, + } + bits_consumed = decode_audio_specific_config(NULL, avctx, &m4ac, gb->buffer + (config_start_bit / 8), asclen, sync_extension); - if (bits_consumed < 0) - return AVERROR_INVALIDDATA; + if (bits_consumed < 0) + return AVERROR_INVALIDDATA; + + if (ac->m4ac.sample_rate != m4ac.sample_rate || + ac->m4ac.chan_config != m4ac.chan_config) { + + av_log(avctx, AV_LOG_INFO, "audio config changed\n"); + latmctx->initialized = 0; esize = (bits_consumed+7) / 8; - if (avctx->extradata_size <= esize) { + if (avctx->extradata_size < esize) { av_free(avctx->extradata); avctx->extradata = av_malloc(esize + FF_INPUT_BUFFER_PADDING_SIZE); if (!avctx->extradata) @@ -2356,9 +2362,8 @@ static int latm_decode_audio_specific_config(struct LATMContext *latmctx, avctx->extradata_size = esize; memcpy(avctx->extradata, gb->buffer + (config_start_bit/8), esize); memset(avctx->extradata+esize, 0, FF_INPUT_BUFFER_PADDING_SIZE); - - skip_bits_long(gb, bits_consumed); } + skip_bits_long(gb, bits_consumed); return bits_consumed; } |