From 5d244b2932c612932107ca3578ca156463a02fa9 Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Tue, 21 Nov 2006 13:08:04 +0000 Subject: [PATCH] split voc.c into vocdec.c and vocenc.c Originally committed as revision 7145 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/Makefile | 6 +- libavformat/voc.h | 14 +++++ libavformat/{voc.c => vocdec.c} | 104 ---------------------------------- libavformat/vocenc.c | 121 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 138 insertions(+), 107 deletions(-) rename libavformat/{voc.c => vocdec.c} (64%) create mode 100644 libavformat/vocenc.c diff --git a/libavformat/Makefile b/libavformat/Makefile index c044cae..257c046 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -25,7 +25,7 @@ OBJS-$(CONFIG_AU_MUXER) += au.o riff.o OBJS-$(CONFIG_AVI_DEMUXER) += avidec.o riff.o OBJS-$(CONFIG_AVI_MUXER) += avienc.o riff.o OBJS-$(CONFIG_AVISYNTH) += avisynth.o -OBJS-$(CONFIG_AVS_DEMUXER) += avs.o +OBJS-$(CONFIG_AVS_DEMUXER) += avs.o vocdec.o riff.o OBJS-$(CONFIG_CRC_MUXER) += crc.o OBJS-$(CONFIG_FRAMECRC_MUXER) += crc.o OBJS-$(CONFIG_DAUD_DEMUXER) += daud.o @@ -115,8 +115,8 @@ OBJS-$(CONFIG_SWF_DEMUXER) += swf.o OBJS-$(CONFIG_SWF_MUXER) += swf.o OBJS-$(CONFIG_TIERTEXSEQ_DEMUXER) += tiertexseq.o OBJS-$(CONFIG_TTA_DEMUXER) += tta.o -OBJS-$(CONFIG_VOC_DEMUXER) += voc.o riff.o -OBJS-$(CONFIG_VOC_MUXER) += voc.o riff.o +OBJS-$(CONFIG_VOC_DEMUXER) += vocdec.o riff.o +OBJS-$(CONFIG_VOC_MUXER) += vocenc.o riff.o OBJS-$(CONFIG_WAV_DEMUXER) += wav.o riff.o OBJS-$(CONFIG_WAV_MUXER) += wav.o riff.o OBJS-$(CONFIG_WC3_DEMUXER) += wc3movie.o diff --git a/libavformat/voc.h b/libavformat/voc.h index 71bd035..a709765 100644 --- a/libavformat/voc.h +++ b/libavformat/voc.h @@ -28,6 +28,20 @@ typedef struct voc_dec_context { int remaining_size; } voc_dec_context_t; +typedef enum voc_type { + VOC_TYPE_EOF = 0x00, + VOC_TYPE_VOICE_DATA = 0x01, + VOC_TYPE_VOICE_DATA_CONT = 0x02, + VOC_TYPE_SILENCE = 0x03, + VOC_TYPE_MARKER = 0x04, + VOC_TYPE_ASCII = 0x05, + VOC_TYPE_REPETITION_START = 0x06, + VOC_TYPE_REPETITION_END = 0x07, + VOC_TYPE_EXTENDED = 0x08, + VOC_TYPE_NEW_VOICE_DATA = 0x09, +} voc_type_t; + + int voc_get_packet(AVFormatContext *s, AVPacket *pkt, AVStream *st, int max_size); diff --git a/libavformat/voc.c b/libavformat/vocdec.c similarity index 64% rename from libavformat/voc.c rename to libavformat/vocdec.c index b22c132..3a8bd28 100644 --- a/libavformat/voc.c +++ b/libavformat/vocdec.c @@ -24,20 +24,6 @@ #include "voc.h" -typedef enum voc_type { - VOC_TYPE_EOF = 0x00, - VOC_TYPE_VOICE_DATA = 0x01, - VOC_TYPE_VOICE_DATA_CONT = 0x02, - VOC_TYPE_SILENCE = 0x03, - VOC_TYPE_MARKER = 0x04, - VOC_TYPE_ASCII = 0x05, - VOC_TYPE_REPETITION_START = 0x06, - VOC_TYPE_REPETITION_END = 0x07, - VOC_TYPE_EXTENDED = 0x08, - VOC_TYPE_NEW_VOICE_DATA = 0x09, -} voc_type_t; - - static const int voc_max_pkt_size = 2048; static const unsigned char voc_magic[] = "Creative Voice File\x1A"; @@ -54,8 +40,6 @@ static const CodecTag voc_codec_tags[] = { }; -#ifdef CONFIG_DEMUXERS - static int voc_probe(AVProbeData *p) { int version, check; @@ -184,91 +168,3 @@ AVInputFormat voc_demuxer = { voc_read_packet, voc_read_close, }; - -#endif /* CONFIG_DEMUXERS */ - - -#ifdef CONFIG_MUXERS - -typedef struct voc_enc_context { - int param_written; -} voc_enc_context_t; - -static int voc_write_header(AVFormatContext *s) -{ - ByteIOContext *pb = &s->pb; - const int header_size = 26; - const int version = 0x0114; - - if (s->nb_streams != 1 - || s->streams[0]->codec->codec_type != CODEC_TYPE_AUDIO) - return AVERROR_NOTSUPP; - - put_buffer(pb, voc_magic, sizeof(voc_magic) - 1); - put_le16(pb, header_size); - put_le16(pb, version); - put_le16(pb, ~version + 0x1234); - - return 0; -} - -static int voc_write_packet(AVFormatContext *s, AVPacket *pkt) -{ - voc_enc_context_t *voc = s->priv_data; - AVCodecContext *enc = s->streams[0]->codec; - ByteIOContext *pb = &s->pb; - - if (!voc->param_written) { - int format = codec_get_tag(voc_codec_tags, enc->codec_id); - - if (format > 0xFF) { - put_byte(pb, VOC_TYPE_NEW_VOICE_DATA); - put_le24(pb, pkt->size + 12); - put_le32(pb, enc->sample_rate); - put_byte(pb, enc->bits_per_sample); - put_byte(pb, enc->channels); - put_le16(pb, format); - put_le32(pb, 0); - } else { - if (s->streams[0]->codec->channels > 1) { - put_byte(pb, VOC_TYPE_EXTENDED); - put_le24(pb, 4); - put_le16(pb, 65536-256000000/(enc->sample_rate*enc->channels)); - put_byte(pb, format); - put_byte(pb, enc->channels - 1); - } - put_byte(pb, VOC_TYPE_VOICE_DATA); - put_le24(pb, pkt->size + 2); - put_byte(pb, 256 - 1000000 / enc->sample_rate); - put_byte(pb, format); - } - voc->param_written = 1; - } else { - put_byte(pb, VOC_TYPE_VOICE_DATA_CONT); - put_le24(pb, pkt->size); - } - - put_buffer(pb, pkt->data, pkt->size); - return 0; -} - -static int voc_write_trailer(AVFormatContext *s) -{ - put_byte(&s->pb, 0); - return 0; -} - -AVOutputFormat voc_muxer = { - "voc", - "Creative Voice File format", - "audio/x-voc", - "voc", - sizeof(voc_enc_context_t), - CODEC_ID_PCM_U8, - CODEC_ID_NONE, - voc_write_header, - voc_write_packet, - voc_write_trailer, -}; - -#endif /* CONFIG_MUXERS */ diff --git a/libavformat/vocenc.c b/libavformat/vocenc.c new file mode 100644 index 0000000..64e8ccf --- /dev/null +++ b/libavformat/vocenc.c @@ -0,0 +1,121 @@ +/* + * Creative Voice File muxer. + * Copyright (c) 2006 Aurelien Jacobs + * + * 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 St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "avformat.h" +#include "riff.h" /* for CodecTag */ +#include "voc.h" + + +static const unsigned char voc_magic[] = "Creative Voice File\x1A"; + +static const CodecTag voc_codec_tags[] = { + {CODEC_ID_PCM_U8, 0x00}, + {CODEC_ID_ADPCM_SBPRO_4, 0x01}, + {CODEC_ID_ADPCM_SBPRO_3, 0x02}, + {CODEC_ID_ADPCM_SBPRO_2, 0x03}, + {CODEC_ID_PCM_S16LE, 0x04}, + {CODEC_ID_PCM_ALAW, 0x06}, + {CODEC_ID_PCM_MULAW, 0x07}, + {CODEC_ID_ADPCM_CT, 0x0200}, + {0, 0}, +}; + + +typedef struct voc_enc_context { + int param_written; +} voc_enc_context_t; + +static int voc_write_header(AVFormatContext *s) +{ + ByteIOContext *pb = &s->pb; + const int header_size = 26; + const int version = 0x0114; + + if (s->nb_streams != 1 + || s->streams[0]->codec->codec_type != CODEC_TYPE_AUDIO) + return AVERROR_NOTSUPP; + + put_buffer(pb, voc_magic, sizeof(voc_magic) - 1); + put_le16(pb, header_size); + put_le16(pb, version); + put_le16(pb, ~version + 0x1234); + + return 0; +} + +static int voc_write_packet(AVFormatContext *s, AVPacket *pkt) +{ + voc_enc_context_t *voc = s->priv_data; + AVCodecContext *enc = s->streams[0]->codec; + ByteIOContext *pb = &s->pb; + + if (!voc->param_written) { + int format = codec_get_tag(voc_codec_tags, enc->codec_id); + + if (format > 0xFF) { + put_byte(pb, VOC_TYPE_NEW_VOICE_DATA); + put_le24(pb, pkt->size + 12); + put_le32(pb, enc->sample_rate); + put_byte(pb, enc->bits_per_sample); + put_byte(pb, enc->channels); + put_le16(pb, format); + put_le32(pb, 0); + } else { + if (s->streams[0]->codec->channels > 1) { + put_byte(pb, VOC_TYPE_EXTENDED); + put_le24(pb, 4); + put_le16(pb, 65536-256000000/(enc->sample_rate*enc->channels)); + put_byte(pb, format); + put_byte(pb, enc->channels - 1); + } + put_byte(pb, VOC_TYPE_VOICE_DATA); + put_le24(pb, pkt->size + 2); + put_byte(pb, 256 - 1000000 / enc->sample_rate); + put_byte(pb, format); + } + voc->param_written = 1; + } else { + put_byte(pb, VOC_TYPE_VOICE_DATA_CONT); + put_le24(pb, pkt->size); + } + + put_buffer(pb, pkt->data, pkt->size); + return 0; +} + +static int voc_write_trailer(AVFormatContext *s) +{ + put_byte(&s->pb, 0); + return 0; +} + +AVOutputFormat voc_muxer = { + "voc", + "Creative Voice File format", + "audio/x-voc", + "voc", + sizeof(voc_enc_context_t), + CODEC_ID_PCM_U8, + CODEC_ID_NONE, + voc_write_header, + voc_write_packet, + voc_write_trailer, +}; -- 2.7.4