From 84d3ff50cd679e0f35f0b7ce2cb2cedd99169959 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Sat, 25 May 2013 19:22:59 +0200 Subject: [PATCH] lavc: add a libwavpack encoder wrapper --- Changelog | 1 + configure | 4 + doc/encoders.texi | 29 ++++++ doc/general.texi | 11 ++- libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/libwavpackenc.c | 194 +++++++++++++++++++++++++++++++++++++ libavcodec/version.h | 2 +- 8 files changed, 241 insertions(+), 2 deletions(-) create mode 100644 libavcodec/libwavpackenc.c diff --git a/Changelog b/Changelog index db2be8d3a7..7a2a7c8880 100644 --- a/Changelog +++ b/Changelog @@ -24,6 +24,7 @@ version 10: - VC-1 interlaced B-frame support - support for WavPack muxing (raw and in Matroska) - Go2Webinar decoder +- WavPack encoding through libwavpack version 9: diff --git a/configure b/configure index 25fab1da33..93a9b306ad 100755 --- a/configure +++ b/configure @@ -200,6 +200,7 @@ External library support: --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no] --enable-libvorbis enable Vorbis encoding via libvorbis [no] --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no] + --enable-libwavpack enable wavpack encoding via libwavpack [no] --enable-libx264 enable H.264 encoding via x264 [no] --enable-libxavs enable AVS encoding via xavs [no] --enable-libxvid enable Xvid encoding via xvidcore, @@ -1060,6 +1061,7 @@ EXTERNAL_LIBRARY_LIST=" libvo_amrwbenc libvorbis libvpx + libwavpack libx264 libxavs libxvid @@ -1790,6 +1792,7 @@ libvpx_vp8_decoder_deps="libvpx" libvpx_vp8_encoder_deps="libvpx" libvpx_vp9_decoder_deps="libvpx" libvpx_vp9_encoder_deps="libvpx" +libwavpack_encoder_deps="libwavpack" libx264_encoder_deps="libx264" libxavs_encoder_deps="libxavs" libxvid_encoder_deps="libxvid" @@ -3735,6 +3738,7 @@ enabled libvpx && { die "ERROR: libvpx encoder version must be >=0.9.6"; } enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; } enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } } +enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 && { check_cpp_condition x264.h "X264_BUILD >= 118" || die "ERROR: libx264 version must be >= 0.118."; } diff --git a/doc/encoders.texi b/doc/encoders.texi index abf5dbfb91..3d9ba75665 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -412,6 +412,35 @@ Selected by Encoder (default) @end table +@section libwavpack + +A wrapper providing WavPack encoding through libwavpack. + +Only lossless mode using 32-bit integer samples is supported currently. +The @option{compression_level} option can be used to control speed vs. +compression tradeoff, with the values mapped to libwavpack as follows: + +@table @option + +@item 0 +Fast mode - corresponding to the wavpack @option{-f} option. + +@item 1 +Normal (default) settings. + +@item 2 +High quality - corresponding to the wavpack @option{-h} option. + +@item 3 +Very high quality - corresponding to the wavpack @option{-hh} option. + +@item 4-8 +Same as 3, but with extra processing enabled - corresponding to the wavpack +@option{-x} option. I.e. 4 is the same as @option{-x2} and 8 is the same as +@option{-x6}. + +@end table + @c man end AUDIO ENCODERS @chapter Video Encoders diff --git a/doc/general.texi b/doc/general.texi index 16fc5e1c6c..2f0e2b9b31 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -79,6 +79,14 @@ Go to @url{http://www.webmproject.org/} and follow the instructions for installing the library. Then pass @code{--enable-libvpx} to configure to enable it. +@section libwavpack + +Libav can make use of the libwavpack library for WavPack encoding. + +Go to @url{http://www.wavpack.com/} and follow the instructions for +installing the library. Then pass @code{--enable-libwavpack} to configure to +enable it. + @section x264 Libav can make use of the x264 library for H.264 encoding. @@ -810,7 +818,8 @@ following image formats are supported: @item TwinVQ (VQF flavor) @tab @tab X @item Vorbis @tab E @tab X @tab A native but very primitive encoder exists. -@item WavPack @tab @tab X +@item WavPack @tab E @tab X + @tab supported through external library libwavpack @item Westwood Audio (SND1) @tab @tab X @item Windows Media Audio 1 @tab X @tab X @item Windows Media Audio 2 @tab X @tab X diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 0381b796c7..d9c6e33005 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -599,6 +599,7 @@ OBJS-$(CONFIG_LIBVPX_VP8_DECODER) += libvpxdec.o OBJS-$(CONFIG_LIBVPX_VP8_ENCODER) += libvpxenc.o OBJS-$(CONFIG_LIBVPX_VP9_DECODER) += libvpxdec.o OBJS-$(CONFIG_LIBVPX_VP9_ENCODER) += libvpxenc.o +OBJS-$(CONFIG_LIBWAVPACK_ENCODER) += libwavpackenc.o OBJS-$(CONFIG_LIBX264_ENCODER) += libx264.o OBJS-$(CONFIG_LIBXAVS_ENCODER) += libxavs.o OBJS-$(CONFIG_LIBXVID_ENCODER) += libxvid.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index ceadcf5630..6bfc0422ca 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -432,6 +432,7 @@ void avcodec_register_all(void) REGISTER_ENCODER(LIBVORBIS, libvorbis); REGISTER_ENCDEC (LIBVPX_VP8, libvpx_vp8); REGISTER_ENCDEC (LIBVPX_VP9, libvpx_vp9); + REGISTER_ENCODER(LIBWAVPACK, libwavpack); REGISTER_ENCODER(LIBX264, libx264); REGISTER_ENCODER(LIBXAVS, libxavs); REGISTER_ENCODER(LIBXVID, libxvid); diff --git a/libavcodec/libwavpackenc.c b/libavcodec/libwavpackenc.c new file mode 100644 index 0000000000..34ec013943 --- /dev/null +++ b/libavcodec/libwavpackenc.c @@ -0,0 +1,194 @@ +/* + * 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 +#include + +#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 = CODEC_CAP_DELAY | CODEC_CAP_SMALL_LAST_FRAME, + .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S32, + AV_SAMPLE_FMT_NONE }, +}; diff --git a/libavcodec/version.h b/libavcodec/version.h index e1b00eee86..3405ce9b47 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -27,7 +27,7 @@ */ #define LIBAVCODEC_VERSION_MAJOR 55 -#define LIBAVCODEC_VERSION_MINOR 8 +#define LIBAVCODEC_VERSION_MINOR 9 #define LIBAVCODEC_VERSION_MICRO 0 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \