diff options
Diffstat (limited to 'ffmpeg/libavformat/soxenc.c')
| -rw-r--r-- | ffmpeg/libavformat/soxenc.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/ffmpeg/libavformat/soxenc.c b/ffmpeg/libavformat/soxenc.c deleted file mode 100644 index e219d75..0000000 --- a/ffmpeg/libavformat/soxenc.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * SoX native format muxer - * Copyright (c) 2009 Daniel Verkamp <daniel@drv.nu> - * - * Based on libSoX sox-fmt.c - * Copyright (c) 2008 robs@users.sourceforge.net - * - * 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 - */ - -/** - * @file - * SoX native format muxer - * @author Daniel Verkamp - * @see http://wiki.multimedia.cx/index.php?title=SoX_native_intermediate_format - */ - -#include "libavutil/intreadwrite.h" -#include "libavutil/intfloat.h" -#include "libavutil/dict.h" -#include "avformat.h" -#include "avio_internal.h" -#include "rawenc.h" -#include "sox.h" - -typedef struct { - int64_t header_size; -} SoXContext; - -static int sox_write_header(AVFormatContext *s) -{ - SoXContext *sox = s->priv_data; - AVIOContext *pb = s->pb; - AVCodecContext *enc = s->streams[0]->codec; - AVDictionaryEntry *comment; - size_t comment_len = 0, comment_size; - - comment = av_dict_get(s->metadata, "comment", NULL, 0); - if (comment) - comment_len = strlen(comment->value); - comment_size = FFALIGN(comment_len, 8); - - sox->header_size = SOX_FIXED_HDR + comment_size; - - if (enc->codec_id == AV_CODEC_ID_PCM_S32LE) { - ffio_wfourcc(pb, ".SoX"); - avio_wl32(pb, sox->header_size); - avio_wl64(pb, 0); /* number of samples */ - avio_wl64(pb, av_double2int(enc->sample_rate)); - avio_wl32(pb, enc->channels); - avio_wl32(pb, comment_size); - } else if (enc->codec_id == AV_CODEC_ID_PCM_S32BE) { - ffio_wfourcc(pb, "XoS."); - avio_wb32(pb, sox->header_size); - avio_wb64(pb, 0); /* number of samples */ - avio_wb64(pb, av_double2int(enc->sample_rate)); - avio_wb32(pb, enc->channels); - avio_wb32(pb, comment_size); - } else { - av_log(s, AV_LOG_ERROR, "invalid codec; use pcm_s32le or pcm_s32be\n"); - return -1; - } - - if (comment_len) - avio_write(pb, comment->value, comment_len); - - ffio_fill(pb, 0, comment_size - comment_len); - - avio_flush(pb); - - return 0; -} - -static int sox_write_trailer(AVFormatContext *s) -{ - SoXContext *sox = s->priv_data; - AVIOContext *pb = s->pb; - AVCodecContext *enc = s->streams[0]->codec; - - if (s->pb->seekable) { - /* update number of samples */ - int64_t file_size = avio_tell(pb); - int64_t num_samples = (file_size - sox->header_size - 4LL) >> 2LL; - avio_seek(pb, 8, SEEK_SET); - if (enc->codec_id == AV_CODEC_ID_PCM_S32LE) { - avio_wl64(pb, num_samples); - } else - avio_wb64(pb, num_samples); - avio_seek(pb, file_size, SEEK_SET); - - avio_flush(pb); - } - - return 0; -} - -AVOutputFormat ff_sox_muxer = { - .name = "sox", - .long_name = NULL_IF_CONFIG_SMALL("SoX native"), - .extensions = "sox", - .priv_data_size = sizeof(SoXContext), - .audio_codec = AV_CODEC_ID_PCM_S32LE, - .video_codec = AV_CODEC_ID_NONE, - .write_header = sox_write_header, - .write_packet = ff_raw_write_packet, - .write_trailer = sox_write_trailer, -}; |