diff options
Diffstat (limited to 'libavcodec/aacdec.c')
| -rw-r--r-- | libavcodec/aacdec.c | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c index 3183ff2373..c9ca0a66a2 100644 --- a/libavcodec/aacdec.c +++ b/libavcodec/aacdec.c @@ -722,16 +722,13 @@ static void decode_ltp(AACContext *ac, LongTermPrediction *ltp, /** * Decode Individual Channel Stream info; reference: table 4.6. - * - * @param common_window Channels have independent [0], or shared [1], Individual Channel Stream information. */ static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics, - GetBitContext *gb, int common_window) + GetBitContext *gb) { if (get_bits1(gb)) { av_log(ac->avctx, AV_LOG_ERROR, "Reserved bit set.\n"); - memset(ics, 0, sizeof(IndividualChannelStream)); - return -1; + return AVERROR_INVALIDDATA; } ics->window_sequence[1] = ics->window_sequence[0]; ics->window_sequence[0] = get_bits(gb, 2); @@ -766,13 +763,11 @@ static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics, if (ics->predictor_present) { if (ac->m4ac.object_type == AOT_AAC_MAIN) { if (decode_prediction(ac, ics, gb)) { - memset(ics, 0, sizeof(IndividualChannelStream)); - return -1; + return AVERROR_INVALIDDATA; } } else if (ac->m4ac.object_type == AOT_AAC_LC) { av_log(ac->avctx, AV_LOG_ERROR, "Prediction is not allowed in AAC-LC.\n"); - memset(ics, 0, sizeof(IndividualChannelStream)); - return -1; + return AVERROR_INVALIDDATA; } else { if ((ics->ltp.present = get_bits(gb, 1))) decode_ltp(ac, &ics->ltp, gb, ics->max_sfb); @@ -784,8 +779,7 @@ static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics, av_log(ac->avctx, AV_LOG_ERROR, "Number of scalefactor bands in group (%d) exceeds limit (%d).\n", ics->max_sfb, ics->num_swb); - memset(ics, 0, sizeof(IndividualChannelStream)); - return -1; + return AVERROR_INVALIDDATA; } return 0; @@ -1390,8 +1384,8 @@ static int decode_ics(AACContext *ac, SingleChannelElement *sce, global_gain = get_bits(gb, 8); if (!common_window && !scale_flag) { - if (decode_ics_info(ac, ics, gb, 0) < 0) - return -1; + if (decode_ics_info(ac, ics, gb) < 0) + return AVERROR_INVALIDDATA; } if (decode_band_types(ac, sce->band_type, sce->band_type_run_end, gb, ics) < 0) @@ -1507,8 +1501,8 @@ static int decode_cpe(AACContext *ac, GetBitContext *gb, ChannelElement *cpe) common_window = get_bits1(gb); if (common_window) { - if (decode_ics_info(ac, &cpe->ch[0].ics, gb, 1)) - return -1; + if (decode_ics_info(ac, &cpe->ch[0].ics, gb)) + return AVERROR_INVALIDDATA; i = cpe->ch[1].ics.use_kb_window[0]; cpe->ch[1].ics = cpe->ch[0].ics; cpe->ch[1].ics.use_kb_window[1] = i; @@ -2282,12 +2276,31 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data, static int aac_decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *avpkt) { + AACContext *ac = avctx->priv_data; const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; GetBitContext gb; int buf_consumed; int buf_offset; int err; + int new_extradata_size; + const uint8_t *new_extradata = av_packet_get_side_data(avpkt, + AV_PKT_DATA_NEW_EXTRADATA, + &new_extradata_size); + + if (new_extradata) { + av_free(avctx->extradata); + avctx->extradata = av_mallocz(new_extradata_size + + FF_INPUT_BUFFER_PADDING_SIZE); + if (!avctx->extradata) + return AVERROR(ENOMEM); + avctx->extradata_size = new_extradata_size; + memcpy(avctx->extradata, new_extradata, new_extradata_size); + if (decode_audio_specific_config(ac, ac->avctx, &ac->m4ac, + avctx->extradata, + avctx->extradata_size*8, 1) < 0) + return AVERROR_INVALIDDATA; + } init_get_bits(&gb, buf, buf_size * 8); |