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03b04eef72
Several muxers (e.g. pcm muxers) did not check the number of streams even though the individual streams were not recoverable from the muxed files. This commit changes this by using the FF_OFMT_MAX_ONE_OF_EACH flag where appropriate. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*
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* Sony OpenMG (OMA) muxer
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*
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* Copyright (c) 2011 Michael Karcher
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avformat.h"
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#include "avio_internal.h"
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#include "id3v2.h"
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#include "internal.h"
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#include "mux.h"
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#include "oma.h"
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#include "rawenc.h"
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static av_cold int oma_write_header(AVFormatContext *s)
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{
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AVCodecParameters *par;
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int srate_index;
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int isjointstereo;
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par = s->streams[0]->codecpar;
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/* check for support of the format first */
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for (srate_index = 0; ; srate_index++) {
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if (ff_oma_srate_tab[srate_index] == 0) {
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av_log(s, AV_LOG_ERROR, "Sample rate %d not supported in OpenMG audio\n",
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par->sample_rate);
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return AVERROR(EINVAL);
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}
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if (ff_oma_srate_tab[srate_index] * 100 == par->sample_rate)
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break;
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}
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/* Metadata; OpenMG does not support ID3v2.4 */
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ff_id3v2_write_simple(s, 3, ID3v2_EA3_MAGIC);
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ffio_wfourcc(s->pb, "EA3\0");
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avio_w8(s->pb, EA3_HEADER_SIZE >> 7);
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avio_w8(s->pb, EA3_HEADER_SIZE & 0x7F);
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avio_wl16(s->pb, 0xFFFF); /* not encrypted */
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ffio_fill(s->pb, 0, 6 * 4); /* Padding + DRM id */
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switch (par->codec_tag) {
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case OMA_CODECID_ATRAC3:
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if (par->ch_layout.nb_channels != 2) {
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av_log(s, AV_LOG_ERROR, "ATRAC3 in OMA is only supported with 2 channels\n");
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return AVERROR(EINVAL);
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}
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if (par->extradata_size == 14) /* WAV format extradata */
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isjointstereo = par->extradata[6] != 0;
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else if(par->extradata_size == 10) /* RM format extradata */
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isjointstereo = par->extradata[8] == 0x12;
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else {
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av_log(s, AV_LOG_ERROR, "ATRAC3: Unsupported extradata size\n");
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return AVERROR(EINVAL);
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}
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avio_wb32(s->pb, (OMA_CODECID_ATRAC3 << 24) |
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(isjointstereo << 17) |
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(srate_index << 13) |
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(par->block_align/8));
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break;
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case OMA_CODECID_ATRAC3P:
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avio_wb32(s->pb, (OMA_CODECID_ATRAC3P << 24) |
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(srate_index << 13) |
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(par->ch_layout.nb_channels << 10) |
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(par->block_align/8 - 1));
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break;
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default:
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av_log(s, AV_LOG_ERROR, "unsupported codec tag %s for write\n",
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av_fourcc2str(par->codec_tag));
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return AVERROR(EINVAL);
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}
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ffio_fill(s->pb, 0, EA3_HEADER_SIZE - 36); /* Padding */
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return 0;
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}
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const FFOutputFormat ff_oma_muxer = {
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.p.name = "oma",
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.p.long_name = NULL_IF_CONFIG_SMALL("Sony OpenMG audio"),
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.p.mime_type = "audio/x-oma",
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.p.extensions = "oma",
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.p.video_codec = AV_CODEC_ID_NONE,
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.p.audio_codec = AV_CODEC_ID_ATRAC3,
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.p.subtitle_codec = AV_CODEC_ID_NONE,
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.write_header = oma_write_header,
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.write_packet = ff_raw_write_packet,
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.p.codec_tag = ff_oma_codec_tags_list,
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.p.flags = AVFMT_NOTIMESTAMPS,
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.flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH,
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};
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