| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * WavPack muxer | ||
| 3 | * Copyright (c) 2013 Konstantin Shishkov <kostya.shishkov@gmail.com> | ||
| 4 | * Copyright (c) 2012 Paul B Mahol | ||
| 5 | * | ||
| 6 | * This file is part of FFmpeg. | ||
| 7 | * | ||
| 8 | * FFmpeg is free software; you can redistribute it and/or | ||
| 9 | * modify it under the terms of the GNU Lesser General Public | ||
| 10 | * License as published by the Free Software Foundation; either | ||
| 11 | * version 2.1 of the License, or (at your option) any later version. | ||
| 12 | * | ||
| 13 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * Lesser General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU Lesser General Public | ||
| 19 | * License along with FFmpeg; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 21 | */ | ||
| 22 | |||
| 23 | #include "libavutil/attributes.h" | ||
| 24 | |||
| 25 | #include "apetag.h" | ||
| 26 | #include "avformat.h" | ||
| 27 | #include "mux.h" | ||
| 28 | #include "wv.h" | ||
| 29 | |||
| 30 | typedef struct WvMuxContext { | ||
| 31 | int64_t samples; | ||
| 32 | } WvMuxContext; | ||
| 33 | |||
| 34 | 13 | static int wv_write_packet(AVFormatContext *ctx, AVPacket *pkt) | |
| 35 | { | ||
| 36 | 13 | WvMuxContext *s = ctx->priv_data; | |
| 37 | WvHeader header; | ||
| 38 | int ret; | ||
| 39 | |||
| 40 |
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26 | if (pkt->size < WV_HEADER_SIZE || |
| 41 | 13 | (ret = ff_wv_parse_header(&header, pkt->data)) < 0) { | |
| 42 | ✗ | av_log(ctx, AV_LOG_ERROR, "Invalid WavPack packet.\n"); | |
| 43 | ✗ | return AVERROR(EINVAL); | |
| 44 | } | ||
| 45 | 13 | s->samples += header.samples; | |
| 46 | |||
| 47 | 13 | avio_write(ctx->pb, pkt->data, pkt->size); | |
| 48 | |||
| 49 | 13 | return 0; | |
| 50 | } | ||
| 51 | |||
| 52 | 2 | static av_cold int wv_write_trailer(AVFormatContext *ctx) | |
| 53 | { | ||
| 54 | 2 | WvMuxContext *s = ctx->priv_data; | |
| 55 | |||
| 56 | /* update total number of samples in the first block */ | ||
| 57 |
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2 | if ((ctx->pb->seekable & AVIO_SEEKABLE_NORMAL) && s->samples && |
| 58 |
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2 | s->samples < UINT32_MAX) { |
| 59 | 2 | int64_t pos = avio_tell(ctx->pb); | |
| 60 | 2 | avio_seek(ctx->pb, 12, SEEK_SET); | |
| 61 | 2 | avio_wl32(ctx->pb, s->samples); | |
| 62 | 2 | avio_seek(ctx->pb, pos, SEEK_SET); | |
| 63 | } | ||
| 64 | |||
| 65 | 2 | ff_ape_write_tag(ctx); | |
| 66 | 2 | return 0; | |
| 67 | } | ||
| 68 | |||
| 69 | const FFOutputFormat ff_wv_muxer = { | ||
| 70 | .p.name = "wv", | ||
| 71 | .p.long_name = NULL_IF_CONFIG_SMALL("raw WavPack"), | ||
| 72 | .p.mime_type = "audio/x-wavpack", | ||
| 73 | .p.extensions = "wv", | ||
| 74 | .priv_data_size = sizeof(WvMuxContext), | ||
| 75 | .p.audio_codec = AV_CODEC_ID_WAVPACK, | ||
| 76 | .p.video_codec = AV_CODEC_ID_NONE, | ||
| 77 | .p.subtitle_codec = AV_CODEC_ID_NONE, | ||
| 78 | .write_packet = wv_write_packet, | ||
| 79 | .write_trailer = wv_write_trailer, | ||
| 80 | .p.flags = AVFMT_NOTIMESTAMPS, | ||
| 81 | .flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH | | ||
| 82 | FF_OFMT_FLAG_ONLY_DEFAULT_CODECS, | ||
| 83 | }; | ||
| 84 |