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author | Paul B Mahol <onemda@gmail.com> | 2012-11-27 15:14:53 +0000 |
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committer | Paul B Mahol <onemda@gmail.com> | 2012-12-05 13:01:22 +0000 |
commit | 4c18562d020751249c671dde21f64f2b64375a62 (patch) | |
tree | ce31311b1b63ca4aae378f97c14356a27c558a2d /libavformat | |
parent | 880191637ff7223541cd2e4db748c6e07fee596c (diff) | |
download | ffmpeg-4c18562d020751249c671dde21f64f2b64375a62.tar.gz |
Ensoniq Paris Audio File demuxer
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavformat')
-rw-r--r-- | libavformat/Makefile | 1 | ||||
-rw-r--r-- | libavformat/allformats.c | 1 | ||||
-rw-r--r-- | libavformat/epafdec.c | 104 | ||||
-rw-r--r-- | libavformat/version.h | 2 |
4 files changed, 107 insertions, 1 deletions
diff --git a/libavformat/Makefile b/libavformat/Makefile index 26ddc4ed18..ec00ddacff 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -115,6 +115,7 @@ OBJS-$(CONFIG_EA_CDATA_DEMUXER) += eacdata.o OBJS-$(CONFIG_EA_DEMUXER) += electronicarts.o OBJS-$(CONFIG_EAC3_DEMUXER) += ac3dec.o rawdec.o OBJS-$(CONFIG_EAC3_MUXER) += rawenc.o +OBJS-$(CONFIG_EPAF_DEMUXER) += epafdec.o pcm.o OBJS-$(CONFIG_FFM_DEMUXER) += ffmdec.o OBJS-$(CONFIG_FFM_MUXER) += ffmenc.o OBJS-$(CONFIG_FFMETADATA_DEMUXER) += ffmetadec.o diff --git a/libavformat/allformats.c b/libavformat/allformats.c index 3c590172f5..7c72fe8828 100644 --- a/libavformat/allformats.c +++ b/libavformat/allformats.c @@ -98,6 +98,7 @@ void av_register_all(void) REGISTER_DEMUXER (EA, ea); REGISTER_DEMUXER (EA_CDATA, ea_cdata); REGISTER_MUXDEMUX (EAC3, eac3); + REGISTER_DEMUXER (EPAF, epaf); REGISTER_MUXER (F4V, f4v); REGISTER_MUXDEMUX (FFM, ffm); REGISTER_MUXDEMUX (FFMETADATA, ffmetadata); diff --git a/libavformat/epafdec.c b/libavformat/epafdec.c new file mode 100644 index 0000000000..ffb8b95ec4 --- /dev/null +++ b/libavformat/epafdec.c @@ -0,0 +1,104 @@ +/* + * Ensoniq Paris Audio File demuxer + * Copyright (c) 2012 Paul B Mahol + * + * 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 "pcm.h" + +static int epaf_probe(AVProbeData *p) +{ + if (((AV_RL32(p->buf) == MKTAG('f','a','p',' ') && + AV_RL32(p->buf + 8) == 1) || + (AV_RL32(p->buf) == MKTAG(' ','p','a','f') && + AV_RN32(p->buf + 8) == 0)) && + !AV_RN32(p->buf + 4) && AV_RN32(p->buf + 12) && + AV_RN32(p->buf + 20)) + return AVPROBE_SCORE_MAX / 4 * 3; + return 0; +} + +static int epaf_read_header(AVFormatContext *s) +{ + int le, sample_rate, codec, channels; + AVStream *st; + + avio_skip(s->pb, 4); + if (avio_rl32(s->pb)) + return AVERROR_INVALIDDATA; + + le = avio_rl32(s->pb); + if (le && le != 1) + return AVERROR_INVALIDDATA; + + if (le) { + sample_rate = avio_rl32(s->pb); + codec = avio_rl32(s->pb); + channels = avio_rl32(s->pb); + } else { + sample_rate = avio_rb32(s->pb); + codec = avio_rb32(s->pb); + channels = avio_rb32(s->pb); + } + + if (!channels || !sample_rate) + return AVERROR_INVALIDDATA; + + st = avformat_new_stream(s, NULL); + if (!st) + return AVERROR(ENOMEM); + + st->codec->codec_type = AVMEDIA_TYPE_AUDIO; + st->codec->channels = channels; + st->codec->sample_rate = sample_rate; + switch (codec) { + case 0: + st->codec->codec_id = le ? AV_CODEC_ID_PCM_S16LE : AV_CODEC_ID_PCM_S16BE; + break; + case 2: + st->codec->codec_id = AV_CODEC_ID_PCM_S8; + break; + case 1: + av_log_missing_feature(s, "24-bit Paris PCM format", 1); + default: + return AVERROR_INVALIDDATA; + } + + st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id); + st->codec->block_align = st->codec->bits_per_coded_sample * st->codec->channels / 8; + + avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); + + if (avio_skip(s->pb, 2024) < 0) + return AVERROR_INVALIDDATA; + return 0; +} + +AVInputFormat ff_epaf_demuxer = { + .name = "epaf", + .long_name = NULL_IF_CONFIG_SMALL("Ensoniq Paris Audio File"), + .read_probe = epaf_probe, + .read_header = epaf_read_header, + .read_packet = ff_pcm_read_packet, + .read_seek = ff_pcm_read_seek, + .extensions = "paf,fap", + .flags = AVFMT_GENERIC_INDEX, +}; diff --git a/libavformat/version.h b/libavformat/version.h index f5ed810ad2..4ffaa98409 100644 --- a/libavformat/version.h +++ b/libavformat/version.h @@ -30,7 +30,7 @@ #include "libavutil/avutil.h" #define LIBAVFORMAT_VERSION_MAJOR 54 -#define LIBAVFORMAT_VERSION_MINOR 45 +#define LIBAVFORMAT_VERSION_MINOR 46 #define LIBAVFORMAT_VERSION_MICRO 100 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ |