From 35564318ad5a679afed14a1c88b517aa2d21298d Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Mon, 19 Oct 2015 00:03:10 +0200 Subject: avformat: add wve demuxer Signed-off-by: Paul B Mahol --- libavformat/Makefile | 1 + libavformat/allformats.c | 1 + libavformat/version.h | 2 +- libavformat/wvedec.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 65 insertions(+), 1 deletion(-) create mode 100644 libavformat/wvedec.c (limited to 'libavformat') diff --git a/libavformat/Makefile b/libavformat/Makefile index 7886b05fc3..de776340f2 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -481,6 +481,7 @@ OBJS-$(CONFIG_WTV_DEMUXER) += wtvdec.o wtv_common.o asf.o \ OBJS-$(CONFIG_WTV_MUXER) += wtvenc.o wtv_common.o \ mpegtsenc.o asf.o OBJS-$(CONFIG_WV_DEMUXER) += wvdec.o wv.o apetag.o img2.o +OBJS-$(CONFIG_WVE_DEMUXER) += wvedec.o pcm.o OBJS-$(CONFIG_WV_MUXER) += wvenc.o wv.o apetag.o img2.o OBJS-$(CONFIG_XA_DEMUXER) += xa.o OBJS-$(CONFIG_XBIN_DEMUXER) += bintext.o sauce.o diff --git a/libavformat/allformats.c b/libavformat/allformats.c index f238118590..5f691efe36 100644 --- a/libavformat/allformats.c +++ b/libavformat/allformats.c @@ -331,6 +331,7 @@ void av_register_all(void) REGISTER_DEMUXER (WSAUD, wsaud); REGISTER_DEMUXER (WSVQA, wsvqa); REGISTER_MUXDEMUX(WTV, wtv); + REGISTER_DEMUXER (WVE, wve); REGISTER_MUXDEMUX(WV, wv); REGISTER_DEMUXER (XA, xa); REGISTER_DEMUXER (XBIN, xbin); diff --git a/libavformat/version.h b/libavformat/version.h index 5c5e3601a4..3b11e6b09c 100644 --- a/libavformat/version.h +++ b/libavformat/version.h @@ -30,7 +30,7 @@ #include "libavutil/version.h" #define LIBAVFORMAT_VERSION_MAJOR 57 -#define LIBAVFORMAT_VERSION_MINOR 9 +#define LIBAVFORMAT_VERSION_MINOR 10 #define LIBAVFORMAT_VERSION_MICRO 100 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ diff --git a/libavformat/wvedec.c b/libavformat/wvedec.c new file mode 100644 index 0000000000..8e74abe5ea --- /dev/null +++ b/libavformat/wvedec.c @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2015 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 "avformat.h" +#include "internal.h" +#include "pcm.h" + +static int wve_probe(AVProbeData *p) +{ + if (memcmp(p->buf, "ALawSoundFile**\0\017\020", 18) || + memcmp(p->buf + 22, "\0\0\0\1\0\0\0\0\0\0", 10)) + return 0; + return AVPROBE_SCORE_MAX; +} + +static int wve_read_header(AVFormatContext *s) +{ + AVStream *st; + + st = avformat_new_stream(s, NULL); + if (!st) + return AVERROR(ENOMEM); + + avio_skip(s->pb, 18); + st->duration = avio_rb32(s->pb); + st->codec->codec_type = AVMEDIA_TYPE_AUDIO; + st->codec->codec_id = AV_CODEC_ID_PCM_ALAW; + st->codec->sample_rate = 8000; + st->codec->channels = 1; + 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); + avio_skip(s->pb, 10); + + return 0; +} + +AVInputFormat ff_wve_demuxer = { + .name = "wve", + .long_name = NULL_IF_CONFIG_SMALL("Psion 3 audio"), + .read_probe = wve_probe, + .read_header = wve_read_header, + .read_packet = ff_pcm_read_packet, + .read_seek = ff_pcm_read_seek, +}; -- cgit v1.2.3