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Thu, 28 May 2020 00:10:06 +0000 Received: from BYAPR15MB2647.namprd15.prod.outlook.com ([fe80::f083:ed57:da58:e2a1]) by BYAPR15MB2647.namprd15.prod.outlook.com ([fe80::f083:ed57:da58:e2a1%6]) with mapi id 15.20.3021.029; Thu, 28 May 2020 00:10:06 +0000 From: A G To: FFmpeg development discussions and patches Thread-Topic: [PATCH] avformat/ogg: Add partial support for demuxing Thread-Index: AQHWNIROoUasexffZUuiE5bHNBlDyA== Date: Thu, 28 May 2020 00:10:06 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-incomingtopheadermarker: OriginalChecksum:D1966E2A57F8A3CB8A17C554997F3723F09EB7DCA96DAEA4880F946F4E8692EC; UpperCasedChecksum:4974E010F726EFAF9D970339BC5330B96B23C4BD911A03F7653FBF30048C65B2; SizeAsReceived:6792; Count:42 x-tmn: [s+jyhrF6QJpGpvPN9Ec92tdcDoiIO0FZoIZMdF5jPZ4=] x-ms-publictraffictype: Email x-incomingheadercount: 42 x-eopattributedmessage: 0 x-ms-office365-filtering-correlation-id: 1995f18c-50da-479e-5b6c-08d8029b7a0b x-ms-traffictypediagnostic: CO1NAM11HT109: x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: S52jcryuD5fsxr8R7MCK8TFJWJ4fT/JS6/lQKTbzJzyzUgJXe/dS3VPlXy7v/eH+M7EGSlRZiN2YFJqxF5IpMsmEOJeBnZA0dbtUWtSa+Hp6Lcc8Fd3JyHgBZ95eSRg3H8QYHJgXPRcyuMvbXA+G5du2J/pH7jScs6HG164HpORxYhavsvlMhur58CWhxLXLhxiKzzlYfHQKABUOxHZxNA== x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:0; SRV:; IPV:NLI; SFV:NSPM; H:BYAPR15MB2647.namprd15.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:; DIR:OUT; SFP:1901; x-ms-exchange-antispam-messagedata: yzSx6JW8pqhCCYnpBjOYgjypTTt7TVev72LsGbrwDL1uryRNacXZywy3/bQgt3PFb9+MLCKo23TIDNgkP8tMXm9eTAtOS3KrHTU8dA7YlpHMVPvpFoL5wFEBKEJag0boGXiGPTtv6HE33+A4QNWQBKGkz45+QUgg4UZEPlXhMNs= x-ms-exchange-transport-forked: True MIME-Version: 1.0 X-OriginatorOrg: outlook.com X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: 1995f18c-50da-479e-5b6c-08d8029b7a0b X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 May 2020 00:10:06.2686 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Internet X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1NAM11HT109 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 Subject: [FFmpeg-devel] [PATCH] avformat/ogg: Add partial support for demuxing X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" From dad3ee4f5e396bf90d4cd43562e238920ad84f02 Mon Sep 17 00:00:00 2001 From: oreo639 <31916379+Oreo639@users.noreply.github.com> Date: Wed, 27 May 2020 16:54:19 -0700 Subject: [PATCH] avformat/ogg: Add partial support for demuxing --- libavformat/Makefile | 1 + libavformat/oggdec.c | 1 + libavformat/oggdec.h | 1 + libavformat/oggparsepcm.c | 123 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 126 insertions(+) create mode 100644 libavformat/oggparsepcm.c -- 2.26.2 diff --git a/libavformat/Makefile b/libavformat/Makefile index efe82f9f08..145407bb40 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -364,6 +364,7 @@ OBJS-$(CONFIG_OGG_DEMUXER) += oggdec.o \ oggparseflac.o \ oggparseogm.o \ oggparseopus.o \ + oggparsepcm.o \ oggparseskeleton.o \ oggparsespeex.o \ oggparsetheora.o \ diff --git a/libavformat/oggdec.c b/libavformat/oggdec.c index 1a3acbb55e..6a95485680 100644 --- a/libavformat/oggdec.c +++ b/libavformat/oggdec.c @@ -49,6 +49,7 @@ static const struct ogg_codec * const ogg_codecs[] = { &ff_flac_codec, &ff_celt_codec, &ff_opus_codec, + &ff_pcm_codec, &ff_vp8_codec, &ff_old_dirac_codec, &ff_old_flac_codec, diff --git a/libavformat/oggdec.h b/libavformat/oggdec.h index 629a1d6262..ae001b4ded 100644 --- a/libavformat/oggdec.h +++ b/libavformat/oggdec.h @@ -124,6 +124,7 @@ extern const struct ogg_codec ff_ogm_video_codec; extern const struct ogg_codec ff_old_dirac_codec; extern const struct ogg_codec ff_old_flac_codec; extern const struct ogg_codec ff_opus_codec; +extern const struct ogg_codec ff_pcm_codec; extern const struct ogg_codec ff_skeleton_codec; extern const struct ogg_codec ff_speex_codec; extern const struct ogg_codec ff_theora_codec; diff --git a/libavformat/oggparsepcm.c b/libavformat/oggparsepcm.c new file mode 100644 index 0000000000..3a1470ac99 --- /dev/null +++ b/libavformat/oggparsepcm.c @@ -0,0 +1,123 @@ +/* + * PCM parser for Ogg + * Copyright (c) 2013 James Almer + * + * 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 "libavutil/intreadwrite.h" +#include "avformat.h" +#include "internal.h" +#include "oggdec.h" + +struct oggpcm_private { + int vorbis_comment; + uint32_t extra_headers; +}; + +static const struct ogg_pcm_codec { + uint32_t codec_id; + uint32_t format_id; +} ogg_pcm_codecs[] = { + { AV_CODEC_ID_PCM_S8, 0x00 }, + { AV_CODEC_ID_PCM_U8, 0x01 }, + { AV_CODEC_ID_PCM_S16LE, 0x02 }, + { AV_CODEC_ID_PCM_S16BE, 0x03 }, + { AV_CODEC_ID_PCM_S24LE, 0x04 }, + { AV_CODEC_ID_PCM_S24BE, 0x05 }, + { AV_CODEC_ID_PCM_S32LE, 0x06 }, + { AV_CODEC_ID_PCM_S32BE, 0x07 }, + { AV_CODEC_ID_PCM_F32LE, 0x20 }, + { AV_CODEC_ID_PCM_F32BE, 0x21 }, + { AV_CODEC_ID_PCM_F64LE, 0x22 }, + { AV_CODEC_ID_PCM_F64BE, 0x23 }, +}; + +static const struct ogg_pcm_codec *ogg_get_pcm_codec_id(uint32_t format_id) +{ + int i; + + for (i = 0; i < FF_ARRAY_ELEMS(ogg_pcm_codecs); i++) + if (ogg_pcm_codecs[i].format_id == format_id) + return &ogg_pcm_codecs[i]; + + return NULL; +} + +static int pcm_header(AVFormatContext *as, int idx) +{ + struct ogg *ogg = as->priv_data; + struct ogg_stream *os = ogg->streams + idx; + struct oggpcm_private *priv = os->private; + const struct ogg_pcm_codec *pcm; + AVStream *st = as->streams[idx]; + uint8_t *p = os->buf + os->pstart; + uint16_t major, minor; + uint32_t format_id; + + if (!priv) { + priv = os->private = av_mallocz(sizeof(*priv)); + if (!priv) + return AVERROR(ENOMEM); + } + + if (os->flags & OGG_FLAG_BOS) { + if (os->psize < 28) { + av_log(as, AV_LOG_ERROR, "Invalid OggPCM header packet"); + return AVERROR_INVALIDDATA; + } + + major = AV_RB16(p + 8); + minor = AV_RB16(p + 10); + if (major) { + av_log(as, AV_LOG_ERROR, "Unsupported OggPCM version %u.%u\n", major, minor); + return AVERROR_INVALIDDATA; + } + + format_id = AV_RB32(p + 12); + pcm = ogg_get_pcm_codec_id(format_id); + if (!pcm) { + av_log(as, AV_LOG_ERROR, "Unsupported PCM format ID 0x%X\n", format_id); + return AVERROR_INVALIDDATA; + } + + st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; + st->codecpar->codec_id = pcm->codec_id; + st->codecpar->sample_rate = AV_RB32(p + 16); + st->codecpar->channels = AV_RB8 (p + 21); + priv->extra_headers = AV_RB32(p + 24); + priv->vorbis_comment = 1; + avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); + } else if (priv->vorbis_comment) { + ff_vorbis_stream_comment(as, st, p, os->psize); + priv->vorbis_comment = 0; + } else if (priv->extra_headers) { + // TODO: Support for channel mapping and conversion headers. + priv->extra_headers--; + } else + return 0; + + return 1; +} + +const struct ogg_codec ff_pcm_codec = { + .name = "OggPCM", + .magic = "PCM ", + .magicsize = 8, + .header = pcm_header, + .nb_header = 2, +};