diff options
Diffstat (limited to 'libavcodec/libwavpackenc.c')
| -rw-r--r-- | libavcodec/libwavpackenc.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/libavcodec/libwavpackenc.c b/libavcodec/libwavpackenc.c deleted file mode 100644 index e84b074893..0000000000 --- a/libavcodec/libwavpackenc.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * This file is part of FFmpeg. - * - * 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. - * - * 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <wavpack/wavpack.h> -#include <string.h> - -#include "libavutil/attributes.h" -#include "libavutil/opt.h" -#include "libavutil/samplefmt.h" - -#include "audio_frame_queue.h" -#include "avcodec.h" -#include "internal.h" - -#define WV_DEFAULT_BLOCK_SIZE 32768 - -typedef struct LibWavpackContext { - const AVClass *class; - WavpackContext *wv; - AudioFrameQueue afq; - - AVPacket *pkt; - int user_size; - - int got_output; -} LibWavpackContext; - -static int wavpack_encode_frame(AVCodecContext *avctx, AVPacket *pkt, - const AVFrame *frame, int *got_output) -{ - LibWavpackContext *s = avctx->priv_data; - int ret; - - s->got_output = 0; - s->pkt = pkt; - s->user_size = pkt->size; - - if (frame) { - ret = ff_af_queue_add(&s->afq, frame); - if (ret < 0) - return ret; - - ret = WavpackPackSamples(s->wv, (int32_t*)frame->data[0], frame->nb_samples); - if (!ret) { - av_log(avctx, AV_LOG_ERROR, "Error encoding a frame: %s\n", - WavpackGetErrorMessage(s->wv)); - return AVERROR_UNKNOWN; - } - } - - if (!s->got_output && - (!frame || frame->nb_samples < avctx->frame_size)) { - ret = WavpackFlushSamples(s->wv); - if (!ret) { - av_log(avctx, AV_LOG_ERROR, "Error flushing the encoder: %s\n", - WavpackGetErrorMessage(s->wv)); - return AVERROR_UNKNOWN; - } - } - - if (s->got_output) { - ff_af_queue_remove(&s->afq, avctx->frame_size, &pkt->pts, &pkt->duration); - *got_output = 1; - } - - return 0; -} - -static int encode_callback(void *id, void *data, int32_t count) -{ - AVCodecContext *avctx = id; - LibWavpackContext *s = avctx->priv_data; - int ret, offset = s->pkt->size; - - if (s->user_size) { - if (s->user_size - count < s->pkt->size) { - av_log(avctx, AV_LOG_ERROR, "Provided packet too small.\n"); - return 0; - } - s->pkt->size += count; - } else { - ret = av_grow_packet(s->pkt, count); - if (ret < 0) { - av_log(avctx, AV_LOG_ERROR, "Error allocating output packet.\n"); - return 0; - } - } - - memcpy(s->pkt->data + offset, data, count); - - s->got_output = 1; - - return 1; -} - -static av_cold int wavpack_encode_init(AVCodecContext *avctx) -{ - LibWavpackContext *s = avctx->priv_data; - WavpackConfig config = { 0 }; - int ret; - - s->wv = WavpackOpenFileOutput(encode_callback, avctx, NULL); - if (!s->wv) { - av_log(avctx, AV_LOG_ERROR, "Error allocating the encoder.\n"); - return AVERROR(ENOMEM); - } - - if (!avctx->frame_size) - avctx->frame_size = WV_DEFAULT_BLOCK_SIZE; - - config.bytes_per_sample = 4; - config.bits_per_sample = 32; - config.block_samples = avctx->frame_size; - config.channel_mask = avctx->channel_layout; - config.num_channels = avctx->channels; - config.sample_rate = avctx->sample_rate; - - if (avctx->compression_level != FF_COMPRESSION_DEFAULT) { - if (avctx->compression_level >= 3) { - config.flags |= CONFIG_VERY_HIGH_FLAG; - - if (avctx->compression_level >= 8) - config.xmode = 6; - else if (avctx->compression_level >= 7) - config.xmode = 5; - else if (avctx->compression_level >= 6) - config.xmode = 4; - else if (avctx->compression_level >= 5) - config.xmode = 3; - else if (avctx->compression_level >= 4) - config.xmode = 2; - } else if (avctx->compression_level >= 2) - config.flags |= CONFIG_HIGH_FLAG; - else if (avctx->compression_level < 1) - config.flags |= CONFIG_FAST_FLAG; - } - - ret = WavpackSetConfiguration(s->wv, &config, -1); - if (!ret) - goto fail; - - ret = WavpackPackInit(s->wv); - if (!ret) - goto fail; - - ff_af_queue_init(avctx, &s->afq); - - return 0; - -fail: - av_log(avctx, AV_LOG_ERROR, "Error configuring the encoder: %s.\n", - WavpackGetErrorMessage(s->wv)); - WavpackCloseFile(s->wv); - return AVERROR_UNKNOWN; -} - -static av_cold int wavpack_encode_close(AVCodecContext *avctx) -{ - LibWavpackContext *s = avctx->priv_data; - - WavpackCloseFile(s->wv); - - ff_af_queue_close(&s->afq); - - return 0; -} - -AVCodec ff_libwavpack_encoder = { - .name = "libwavpack", - .type = AVMEDIA_TYPE_AUDIO, - .id = AV_CODEC_ID_WAVPACK, - .priv_data_size = sizeof(LibWavpackContext), - .init = wavpack_encode_init, - .encode2 = wavpack_encode_frame, - .close = wavpack_encode_close, - .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SMALL_LAST_FRAME, - .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S32, - AV_SAMPLE_FMT_NONE }, - .wrapper_name = "libwavpack", -}; |