diff options
Diffstat (limited to 'ffmpeg/libavformat/omaenc.c')
| -rw-r--r-- | ffmpeg/libavformat/omaenc.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/ffmpeg/libavformat/omaenc.c b/ffmpeg/libavformat/omaenc.c deleted file mode 100644 index b947987..0000000 --- a/ffmpeg/libavformat/omaenc.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * Sony OpenMG (OMA) muxer - * - * Copyright (c) 2011 Michael Karcher - * - * 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 "avformat.h" -#include "avio_internal.h" -#include "id3v2.h" -#include "internal.h" -#include "oma.h" -#include "rawenc.h" - -static av_cold int oma_write_header(AVFormatContext *s) -{ - int i; - AVCodecContext *format; - int srate_index; - int isjointstereo; - - format = s->streams[0]->codec; - /* check for support of the format first */ - - for (srate_index = 0; ; srate_index++) { - if (ff_oma_srate_tab[srate_index] == 0) { - av_log(s, AV_LOG_ERROR, "Sample rate %d not supported in OpenMG audio\n", - format->sample_rate); - return AVERROR(EINVAL); - } - - if (ff_oma_srate_tab[srate_index] * 100 == format->sample_rate) - break; - } - - /* Metadata; OpenMG does not support ID3v2.4 */ - ff_id3v2_write_simple(s, 3, ID3v2_EA3_MAGIC); - - ffio_wfourcc(s->pb, "EA3\0"); - avio_w8(s->pb, EA3_HEADER_SIZE >> 7); - avio_w8(s->pb, EA3_HEADER_SIZE & 0x7F); - avio_wl16(s->pb, 0xFFFF); /* not encrypted */ - for (i = 0; i < 6; i++) - avio_wl32(s->pb, 0); /* Padding + DRM id */ - - switch(format->codec_tag) { - case OMA_CODECID_ATRAC3: - if (format->channels != 2) { - av_log(s, AV_LOG_ERROR, "ATRAC3 in OMA is only supported with 2 channels\n"); - return AVERROR(EINVAL); - } - if (format->extradata_size == 14) /* WAV format extradata */ - isjointstereo = format->extradata[6] != 0; - else if(format->extradata_size == 10) /* RM format extradata */ - isjointstereo = format->extradata[8] == 0x12; - else { - av_log(s, AV_LOG_ERROR, "ATRAC3: Unsupported extradata size\n"); - return AVERROR(EINVAL); - } - avio_wb32(s->pb, (OMA_CODECID_ATRAC3 << 24) | - (isjointstereo << 17) | - (srate_index << 13) | - (format->block_align/8)); - break; - case OMA_CODECID_ATRAC3P: - avio_wb32(s->pb, (OMA_CODECID_ATRAC3P << 24) | - (srate_index << 13) | - (format->channels << 10) | - (format->block_align/8 - 1)); - break; - default: - av_log(s, AV_LOG_ERROR, "unsupported codec tag %d for write\n", - format->codec_tag); - return AVERROR(EINVAL); - } - for (i = 0; i < (EA3_HEADER_SIZE - 36)/4; i++) - avio_wl32(s->pb, 0); /* Padding */ - - return 0; -} - -AVOutputFormat ff_oma_muxer = { - .name = "oma", - .long_name = NULL_IF_CONFIG_SMALL("Sony OpenMG audio"), - .mime_type = "audio/x-oma", - .extensions = "oma", - .audio_codec = AV_CODEC_ID_ATRAC3, - .write_header = oma_write_header, - .write_packet = ff_raw_write_packet, - .codec_tag = (const AVCodecTag* const []){ff_oma_codec_tags, 0}, -}; |
