diff options
Diffstat (limited to 'libavcodec/atrac3plusdec.c')
| -rw-r--r-- | libavcodec/atrac3plusdec.c | 56 |
1 files changed, 30 insertions, 26 deletions
diff --git a/libavcodec/atrac3plusdec.c b/libavcodec/atrac3plusdec.c index 4a742c159e..ec2b1ad3b2 100644 --- a/libavcodec/atrac3plusdec.c +++ b/libavcodec/atrac3plusdec.c @@ -3,20 +3,20 @@ * * Copyright (c) 2010-2013 Maxim Poliakovski * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -47,7 +47,7 @@ typedef struct ATRAC3PContext { GetBitContext gb; - AVFloatDSPContext fdsp; + AVFloatDSPContext *fdsp; DECLARE_ALIGNED(32, float, samples)[2][ATRAC3P_FRAME_SAMPLES]; ///< quantized MDCT spectrum DECLARE_ALIGNED(32, float, mdct_buf)[2][ATRAC3P_FRAME_SAMPLES]; ///< output of the IMDCT @@ -67,7 +67,13 @@ typedef struct ATRAC3PContext { static av_cold int atrac3p_decode_close(AVCodecContext *avctx) { - av_free(((ATRAC3PContext *)(avctx->priv_data))->ch_units); + ATRAC3PContext *ctx = avctx->priv_data; + + av_freep(&ctx->ch_units); + av_freep(&ctx->fdsp); + + ff_mdct_end(&ctx->mdct_ctx); + ff_mdct_end(&ctx->ipqf_dct_ctx); return 0; } @@ -148,7 +154,7 @@ static av_cold int atrac3p_decode_init(AVCodecContext *avctx) return AVERROR(EINVAL); } - avpriv_float_dsp_init(&ctx->fdsp, avctx->flags & AV_CODEC_FLAG_BITEXACT); + ff_atrac3p_init_vlcs(); /* initialize IPQF */ ff_mdct_init(&ctx->ipqf_dct_ctx, 5, 1, 32.0 / 32768.0); @@ -164,9 +170,10 @@ static av_cold int atrac3p_decode_init(AVCodecContext *avctx) ctx->my_channel_layout = avctx->channel_layout; - ctx->ch_units = av_mallocz(sizeof(*ctx->ch_units) * - ctx->num_channel_blocks); - if (!ctx->ch_units) { + ctx->ch_units = av_mallocz_array(ctx->num_channel_blocks, sizeof(*ctx->ch_units)); + ctx->fdsp = avpriv_float_dsp_alloc(avctx->flags & AV_CODEC_FLAG_BITEXACT); + + if (!ctx->ch_units || !ctx->fdsp) { atrac3p_decode_close(avctx); return AVERROR(ENOMEM); } @@ -263,7 +270,7 @@ static void reconstruct_frame(ATRAC3PContext *ctx, Atrac3pChanUnitCtx *ch_unit, for (ch = 0; ch < num_channels; ch++) { for (sb = 0; sb < ch_unit->num_subbands; sb++) { /* inverse transform and windowing */ - ff_atrac3p_imdct(&ctx->fdsp, &ctx->mdct_ctx, + ff_atrac3p_imdct(ctx->fdsp, &ctx->mdct_ctx, &ctx->samples[ch][sb * ATRAC3P_SUBBAND_SAMPLES], &ctx->mdct_buf[ch][sb * ATRAC3P_SUBBAND_SAMPLES], (ch_unit->channels[ch].wnd_shape_prev[sb] << 1) + @@ -297,7 +304,7 @@ static void reconstruct_frame(ATRAC3PContext *ctx, Atrac3pChanUnitCtx *ch_unit, for (sb = 0; sb < ch_unit->num_subbands; sb++) if (ch_unit->channels[ch].tones_info[sb].num_wavs || ch_unit->channels[ch].tones_info_prev[sb].num_wavs) { - ff_atrac3p_generate_tones(ch_unit, &ctx->fdsp, ch, sb, + ff_atrac3p_generate_tones(ch_unit, ctx->fdsp, ch, sb, &ctx->time_buf[ch][sb * 128]); } } @@ -329,10 +336,8 @@ static int atrac3p_decode_frame(AVCodecContext *avctx, void *data, float **samples_p = (float **)frame->extended_data; frame->nb_samples = ATRAC3P_FRAME_SAMPLES; - if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) return ret; - } if ((ret = init_get_bits8(&ctx->gb, avpkt->data, avpkt->size)) < 0) return ret; @@ -379,18 +384,17 @@ static int atrac3p_decode_frame(AVCodecContext *avctx, void *data, *got_frame_ptr = 1; - return avctx->block_align; + return FFMIN(avctx->block_align, avpkt->size); } AVCodec ff_atrac3p_decoder = { - .name = "atrac3plus", - .long_name = NULL_IF_CONFIG_SMALL("ATRAC3+ (Adaptive TRansform Acoustic Coding 3+)"), - .type = AVMEDIA_TYPE_AUDIO, - .id = AV_CODEC_ID_ATRAC3P, - .capabilities = AV_CODEC_CAP_DR1, - .priv_data_size = sizeof(ATRAC3PContext), - .init = atrac3p_decode_init, - .init_static_data = ff_atrac3p_init_vlcs, - .close = atrac3p_decode_close, - .decode = atrac3p_decode_frame, + .name = "atrac3plus", + .long_name = NULL_IF_CONFIG_SMALL("ATRAC3+ (Adaptive TRansform Acoustic Coding 3+)"), + .type = AVMEDIA_TYPE_AUDIO, + .id = AV_CODEC_ID_ATRAC3P, + .capabilities = AV_CODEC_CAP_DR1, + .priv_data_size = sizeof(ATRAC3PContext), + .init = atrac3p_decode_init, + .close = atrac3p_decode_close, + .decode = atrac3p_decode_frame, }; |