| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * g722 raw demuxer | ||
| 3 | * Copyright (c) 2010 Martin Storsjo | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "avformat.h" | ||
| 23 | #include "demux.h" | ||
| 24 | #include "internal.h" | ||
| 25 | #include "rawdec.h" | ||
| 26 | |||
| 27 | 1 | static int g722_read_header(AVFormatContext *s) | |
| 28 | { | ||
| 29 | AVStream *st; | ||
| 30 | |||
| 31 | 1 | st = avformat_new_stream(s, NULL); | |
| 32 |
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1 | if (!st) |
| 33 | ✗ | return AVERROR(ENOMEM); | |
| 34 | |||
| 35 | 1 | st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; | |
| 36 | 1 | st->codecpar->codec_id = AV_CODEC_ID_ADPCM_G722; | |
| 37 | 1 | st->codecpar->sample_rate = 16000; | |
| 38 | 1 | st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | |
| 39 | |||
| 40 | 1 | st->codecpar->bits_per_coded_sample = 4; | |
| 41 | |||
| 42 | 1 | avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); | |
| 43 | 1 | return 0; | |
| 44 | } | ||
| 45 | |||
| 46 | const FFInputFormat ff_g722_demuxer = { | ||
| 47 | .p.name = "g722", | ||
| 48 | .p.long_name = NULL_IF_CONFIG_SMALL("raw G.722"), | ||
| 49 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 50 | .p.extensions = "g722,722", | ||
| 51 | .p.priv_class = &ff_raw_demuxer_class, | ||
| 52 | .read_header = g722_read_header, | ||
| 53 | .read_packet = ff_raw_read_partial_packet, | ||
| 54 | .raw_codec_id = AV_CODEC_ID_ADPCM_G722, | ||
| 55 | .priv_data_size = sizeof(FFRawDemuxerContext), | ||
| 56 | }; | ||
| 57 |