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-rw-r--r--libavcodec/libdcadec.c205
1 files changed, 0 insertions, 205 deletions
diff --git a/libavcodec/libdcadec.c b/libavcodec/libdcadec.c
deleted file mode 100644
index b88f80763b..0000000000
--- a/libavcodec/libdcadec.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * libdcadec decoder wrapper
- * Copyright (C) 2015 Hendrik Leppkes
- *
- * This file is part of Libav.
- *
- * Libav 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,
- * 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
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <libdcadec/dca_context.h>
-
-#include "libavutil/channel_layout.h"
-#include "libavutil/common.h"
-#include "libavutil/opt.h"
-
-#include "avcodec.h"
-#include "dca.h"
-#include "dca_syncwords.h"
-#include "internal.h"
-
-typedef struct DCADecContext {
- struct dcadec_context *ctx;
- uint8_t *buffer;
- int buffer_size;
-} DCADecContext;
-
-static int dcadec_decode_frame(AVCodecContext *avctx, void *data,
- int *got_frame_ptr, AVPacket *avpkt)
-{
- DCADecContext *s = avctx->priv_data;
- AVFrame *frame = data;
- int ret, i, k;
- int **samples, nsamples, channel_mask, sample_rate, bits_per_sample, profile;
- uint32_t mrk;
- uint8_t *input = avpkt->data;
- int input_size = avpkt->size;
-
- /* convert bytestream syntax to RAW BE format if required */
- if (input_size < 8) {
- av_log(avctx, AV_LOG_ERROR, "Input size too small\n");
- return AVERROR_INVALIDDATA;
- }
- mrk = AV_RB32(input);
- if (mrk != DCA_SYNCWORD_CORE_BE && mrk != DCA_SYNCWORD_SUBSTREAM) {
- s->buffer = av_fast_realloc(s->buffer, &s->buffer_size, avpkt->size + AV_INPUT_BUFFER_PADDING_SIZE);
- if (!s->buffer)
- return AVERROR(ENOMEM);
-
- if ((ret = ff_dca_convert_bitstream(avpkt->data, avpkt->size, s->buffer, s->buffer_size)) < 0)
- return ret;
-
- input = s->buffer;
- input_size = ret;
- }
-
- if ((ret = dcadec_context_parse(s->ctx, input, input_size)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "dcadec_context_parse() failed: %d (%s)\n", -ret, dcadec_strerror(ret));
- return AVERROR_UNKNOWN;
- }
- if ((ret = dcadec_context_filter(s->ctx, &samples, &nsamples, &channel_mask,
- &sample_rate, &bits_per_sample, &profile)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "dcadec_context_filter() failed: %d (%s)\n", -ret, dcadec_strerror(ret));
- return AVERROR_UNKNOWN;
- }
-
- avctx->channels = av_get_channel_layout_nb_channels(channel_mask);
- avctx->channel_layout = channel_mask;
- avctx->sample_rate = sample_rate;
-
- if (bits_per_sample == 16)
- avctx->sample_fmt = AV_SAMPLE_FMT_S16P;
- else if (bits_per_sample <= 24)
- avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
- else {
- av_log(avctx, AV_LOG_ERROR, "Unsupported number of bits per sample: %d\n",
- bits_per_sample);
- return AVERROR(ENOSYS);
- }
-
- avctx->bits_per_raw_sample = bits_per_sample;
-
- switch (profile) {
- case DCADEC_PROFILE_DS:
- avctx->profile = FF_PROFILE_DTS;
- break;
- case DCADEC_PROFILE_DS_96_24:
- avctx->profile = FF_PROFILE_DTS_96_24;
- break;
- case DCADEC_PROFILE_DS_ES:
- avctx->profile = FF_PROFILE_DTS_ES;
- break;
- case DCADEC_PROFILE_HD_HRA:
- avctx->profile = FF_PROFILE_DTS_HD_HRA;
- break;
- case DCADEC_PROFILE_HD_MA:
- avctx->profile = FF_PROFILE_DTS_HD_MA;
- break;
- case DCADEC_PROFILE_EXPRESS:
- avctx->profile = FF_PROFILE_DTS_EXPRESS;
- break;
- case DCADEC_PROFILE_UNKNOWN:
- default:
- avctx->profile = FF_PROFILE_UNKNOWN;
- break;
- }
-
- /* bitrate is only meaningful if there are no HD extensions, as they distort the bitrate */
- if (profile == DCADEC_PROFILE_DS || profile == DCADEC_PROFILE_DS_96_24 || profile == DCADEC_PROFILE_DS_ES) {
- struct dcadec_core_info *info = dcadec_context_get_core_info(s->ctx);
- avctx->bit_rate = info->bit_rate;
- dcadec_context_free_core_info(info);
- } else
- avctx->bit_rate = 0;
-
- frame->nb_samples = nsamples;
- if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
- return ret;
-
- for (i = 0; i < avctx->channels; i++) {
- if (frame->format == AV_SAMPLE_FMT_S16P) {
- int16_t *plane = (int16_t *)frame->extended_data[i];
- for (k = 0; k < nsamples; k++)
- plane[k] = samples[i][k];
- } else {
- int32_t *plane = (int32_t *)frame->extended_data[i];
- int shift = 32 - bits_per_sample;
- for (k = 0; k < nsamples; k++)
- plane[k] = samples[i][k] << shift;
- }
- }
-
- *got_frame_ptr = 1;
-
- return avpkt->size;
-}
-
-static av_cold void dcadec_flush(AVCodecContext *avctx)
-{
- DCADecContext *s = avctx->priv_data;
- dcadec_context_clear(s->ctx);
-}
-
-static av_cold int dcadec_close(AVCodecContext *avctx)
-{
- DCADecContext *s = avctx->priv_data;
-
- dcadec_context_destroy(s->ctx);
- s->ctx = NULL;
-
- av_freep(&s->buffer);
-
- return 0;
-}
-
-static av_cold int dcadec_init(AVCodecContext *avctx)
-{
- DCADecContext *s = avctx->priv_data;
-
- s->ctx = dcadec_context_create(0);
- if (!s->ctx)
- return AVERROR(ENOMEM);
-
- avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
- avctx->bits_per_raw_sample = 24;
-
- return 0;
-}
-
-static const AVProfile profiles[] = {
- { FF_PROFILE_DTS, "DTS" },
- { FF_PROFILE_DTS_ES, "DTS-ES" },
- { FF_PROFILE_DTS_96_24, "DTS 96/24" },
- { FF_PROFILE_DTS_HD_HRA, "DTS-HD HRA" },
- { FF_PROFILE_DTS_HD_MA, "DTS-HD MA" },
- { FF_PROFILE_DTS_EXPRESS, "DTS Express" },
- { FF_PROFILE_UNKNOWN },
-};
-
-AVCodec ff_libdcadec_decoder = {
- .name = "libdcadec",
- .long_name = NULL_IF_CONFIG_SMALL("dcadec DCA decoder"),
- .type = AVMEDIA_TYPE_AUDIO,
- .id = AV_CODEC_ID_DTS,
- .priv_data_size = sizeof(DCADecContext),
- .init = dcadec_init,
- .decode = dcadec_decode_frame,
- .close = dcadec_close,
- .flush = dcadec_flush,
- .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_CHANNEL_CONF,
- .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S32P, AV_SAMPLE_FMT_S16P,
- AV_SAMPLE_FMT_NONE },
- .profiles = NULL_IF_CONFIG_SMALL(profiles),
-};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 08:37:53 +0000