From ee20b332c872b48cbcf914a2b4adc52aa3e94175 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Sat, 17 Dec 2011 15:23:13 +0100 Subject: [PATCH] omadec: split data that will be used in the muxer to a separate file. --- libavformat/Makefile | 2 +- libavformat/oma.c | 33 +++++++++++++++++++++++++++++++++ libavformat/oma.h | 39 +++++++++++++++++++++++++++++++++++++++ libavformat/omadec.c | 28 +++++----------------------- 4 files changed, 78 insertions(+), 24 deletions(-) create mode 100644 libavformat/oma.c create mode 100644 libavformat/oma.h diff --git a/libavformat/Makefile b/libavformat/Makefile index fe59723b79..aa15b7ea45 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -178,7 +178,7 @@ OBJS-$(CONFIG_OGG_DEMUXER) += oggdec.o \ vorbiscomment.o OBJS-$(CONFIG_OGG_MUXER) += oggenc.o \ vorbiscomment.o -OBJS-$(CONFIG_OMA_DEMUXER) += omadec.o pcm.o +OBJS-$(CONFIG_OMA_DEMUXER) += omadec.o pcm.o oma.o OBJS-$(CONFIG_PCM_ALAW_DEMUXER) += pcmdec.o pcm.o rawdec.o OBJS-$(CONFIG_PCM_ALAW_MUXER) += pcmenc.o rawenc.o OBJS-$(CONFIG_PCM_F32BE_DEMUXER) += pcmdec.o pcm.o rawdec.o diff --git a/libavformat/oma.c b/libavformat/oma.c new file mode 100644 index 0000000000..930991cf00 --- /dev/null +++ b/libavformat/oma.c @@ -0,0 +1,33 @@ +/* + * Sony OpenMG (OMA) common data + * + * 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 "internal.h" +#include "oma.h" +#include "libavcodec/avcodec.h" + +const uint16_t ff_oma_srate_tab[6] = { 320, 441, 480, 882, 960, 0 }; + +const AVCodecTag ff_oma_codec_tags[] = { + { CODEC_ID_ATRAC3, OMA_CODECID_ATRAC3 }, + { CODEC_ID_ATRAC3P, OMA_CODECID_ATRAC3P }, + { CODEC_ID_MP3, OMA_CODECID_MP3 }, + { CODEC_ID_PCM_S16BE, OMA_CODECID_LPCM }, + { 0 }, +}; diff --git a/libavformat/oma.h b/libavformat/oma.h new file mode 100644 index 0000000000..2830b34673 --- /dev/null +++ b/libavformat/oma.h @@ -0,0 +1,39 @@ +/* + * Sony OpenMG (OMA) common data + * + * 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 + */ + +#ifndef AVFORMAT_OMA_H +#define AVFORMAT_OMA_H + +#define EA3_HEADER_SIZE 96 +#define ID3v2_EA3_MAGIC "ea3" +#define OMA_ENC_HEADER_SIZE 16 + +enum { + OMA_CODECID_ATRAC3 = 0, + OMA_CODECID_ATRAC3P = 1, + OMA_CODECID_MP3 = 3, + OMA_CODECID_LPCM = 4, + OMA_CODECID_WMA = 5, +}; + +extern const uint16_t ff_oma_srate_tab[6]; + +extern const AVCodecTag ff_oma_codec_tags[]; +#endif diff --git a/libavformat/omadec.c b/libavformat/omadec.c index 1aa9a25477..0beed7165d 100644 --- a/libavformat/omadec.c +++ b/libavformat/omadec.c @@ -44,28 +44,11 @@ #include "internal.h" #include "libavutil/intreadwrite.h" #include "libavutil/des.h" +#include "oma.h" #include "pcm.h" #include "riff.h" #include "id3v2.h" -#define EA3_HEADER_SIZE 96 -#define ID3v2_EA3_MAGIC "ea3" -#define OMA_ENC_HEADER_SIZE 16 - -enum { - OMA_CODECID_ATRAC3 = 0, - OMA_CODECID_ATRAC3P = 1, - OMA_CODECID_MP3 = 3, - OMA_CODECID_LPCM = 4, - OMA_CODECID_WMA = 5, -}; - -static const AVCodecTag codec_oma_tags[] = { - { CODEC_ID_ATRAC3, OMA_CODECID_ATRAC3 }, - { CODEC_ID_ATRAC3P, OMA_CODECID_ATRAC3P }, - { CODEC_ID_MP3, OMA_CODECID_MP3 }, - { CODEC_ID_PCM_S16BE, OMA_CODECID_LPCM }, -}; static const uint64_t leaf_table[] = { 0xd79e8283acea4620, 0x7a9762f445afd0d8, @@ -276,7 +259,6 @@ static int decrypt_init(AVFormatContext *s, ID3v2ExtraMeta *em, uint8_t *header) static int oma_read_header(AVFormatContext *s, AVFormatParameters *ap) { - static const uint16_t srate_tab[6] = {320,441,480,882,960,0}; int ret, framesize, jsflag, samplerate; uint32_t codec_params; int16_t eid; @@ -316,11 +298,11 @@ static int oma_read_header(AVFormatContext *s, st->start_time = 0; st->codec->codec_type = AVMEDIA_TYPE_AUDIO; st->codec->codec_tag = buf[32]; - st->codec->codec_id = ff_codec_get_id(codec_oma_tags, st->codec->codec_tag); + st->codec->codec_id = ff_codec_get_id(ff_oma_codec_tags, st->codec->codec_tag); switch (buf[32]) { case OMA_CODECID_ATRAC3: - samplerate = srate_tab[(codec_params >> 13) & 7]*100; + samplerate = ff_oma_srate_tab[(codec_params >> 13) & 7]*100; if (samplerate != 44100) av_log_ask_for_sample(s, "Unsupported sample rate: %d\n", samplerate); @@ -350,7 +332,7 @@ static int oma_read_header(AVFormatContext *s, case OMA_CODECID_ATRAC3P: st->codec->channels = (codec_params >> 10) & 7; framesize = ((codec_params & 0x3FF) * 8) + 8; - st->codec->sample_rate = srate_tab[(codec_params >> 13) & 7]*100; + st->codec->sample_rate = ff_oma_srate_tab[(codec_params >> 13) & 7]*100; st->codec->bit_rate = st->codec->sample_rate * framesize * 8 / 1024; avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); av_log(s, AV_LOG_ERROR, "Unsupported codec ATRAC3+!\n"); @@ -459,6 +441,6 @@ AVInputFormat ff_oma_demuxer = { .read_seek = oma_read_seek, .flags = AVFMT_GENERIC_INDEX, .extensions = "oma,omg,aa3", - .codec_tag = (const AVCodecTag* const []){codec_oma_tags, 0}, + .codec_tag = (const AVCodecTag* const []){ff_oma_codec_tags, 0}, };