| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * G.728 raw demuxer | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include "avformat.h" | ||
| 22 | #include "demux.h" | ||
| 23 | #include "internal.h" | ||
| 24 | |||
| 25 | ✗ | static int g728_read_header(AVFormatContext *s) | |
| 26 | { | ||
| 27 | ✗ | AVStream *st = avformat_new_stream(s, NULL); | |
| 28 | ✗ | if (!st) | |
| 29 | ✗ | return AVERROR(ENOMEM); | |
| 30 | |||
| 31 | ✗ | st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; | |
| 32 | ✗ | st->codecpar->codec_id = ffifmt(s->iformat)->raw_codec_id; | |
| 33 | ✗ | st->codecpar->sample_rate = 8000; | |
| 34 | ✗ | st->codecpar->bit_rate = 16000; | |
| 35 | ✗ | st->codecpar->block_align = 5; | |
| 36 | ✗ | st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; | |
| 37 | ✗ | avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); | |
| 38 | |||
| 39 | ✗ | return 0; | |
| 40 | } | ||
| 41 | |||
| 42 | ✗ | static int g728_read_packet(AVFormatContext *s, AVPacket *pkt) | |
| 43 | { | ||
| 44 | ✗ | int ret = av_get_packet(s->pb, pkt, 1020); // a size similar to RAW_PACKET_SIZE divisible by 5 | |
| 45 | ✗ | pkt->flags &= ~AV_PKT_FLAG_CORRUPT; | |
| 46 | ✗ | pkt->duration = (pkt->size / 5) * 20; | |
| 47 | ✗ | return ret; | |
| 48 | } | ||
| 49 | |||
| 50 | const FFInputFormat ff_g728_demuxer = { | ||
| 51 | .p.name = "g728", | ||
| 52 | .p.long_name = NULL_IF_CONFIG_SMALL("raw G.728"), | ||
| 53 | .p.extensions = "g728", | ||
| 54 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 55 | .read_header = g728_read_header, | ||
| 56 | .read_packet = g728_read_packet, | ||
| 57 | .raw_codec_id = AV_CODEC_ID_G728, | ||
| 58 | }; | ||
| 59 |