| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * IPU video demuxer | ||
| 3 | * Copyright (c) 2020 Paul B Mahol | ||
| 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 "avio_internal.h" | ||
| 26 | #include "rawdec.h" | ||
| 27 | |||
| 28 | #include "libavutil/intreadwrite.h" | ||
| 29 | |||
| 30 | 7186 | static int ipu_read_probe(const AVProbeData *p) | |
| 31 | { | ||
| 32 |
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7186 | if (AV_RB32(p->buf) != MKBETAG('i', 'p', 'u', 'm')) |
| 33 | 7186 | return 0; | |
| 34 | |||
| 35 | ✗ | if (AV_RL32(p->buf + 4) == 0) | |
| 36 | ✗ | return 0; | |
| 37 | |||
| 38 | ✗ | if (AV_RL16(p->buf + 8) == 0) | |
| 39 | ✗ | return 0; | |
| 40 | |||
| 41 | ✗ | if (AV_RL16(p->buf + 10) == 0) | |
| 42 | ✗ | return 0; | |
| 43 | |||
| 44 | ✗ | if (AV_RL32(p->buf + 12) == 0) | |
| 45 | ✗ | return 0; | |
| 46 | |||
| 47 | ✗ | return AVPROBE_SCORE_MAX; | |
| 48 | } | ||
| 49 | |||
| 50 | ✗ | static int ipu_read_header(AVFormatContext *s) | |
| 51 | { | ||
| 52 | ✗ | AVIOContext *pb = s->pb; | |
| 53 | ✗ | AVStream *st = avformat_new_stream(s, NULL); | |
| 54 | |||
| 55 | ✗ | if (!st) | |
| 56 | ✗ | return AVERROR(ENOMEM); | |
| 57 | ✗ | avio_skip(pb, 8); | |
| 58 | ✗ | st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO; | |
| 59 | ✗ | st->codecpar->codec_id = AV_CODEC_ID_IPU; | |
| 60 | ✗ | st->codecpar->width = avio_rl16(pb); | |
| 61 | ✗ | st->codecpar->height = avio_rl16(pb); | |
| 62 | ✗ | st->start_time = 0; | |
| 63 | ✗ | st->duration = | |
| 64 | ✗ | st->nb_frames = avio_rl32(pb); | |
| 65 | ✗ | ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW; | |
| 66 | ✗ | avpriv_set_pts_info(st, 64, 1, 25); | |
| 67 | |||
| 68 | ✗ | return 0; | |
| 69 | } | ||
| 70 | |||
| 71 | const FFInputFormat ff_ipu_demuxer = { | ||
| 72 | .p.name = "ipu", | ||
| 73 | .p.long_name = NULL_IF_CONFIG_SMALL("raw IPU Video"), | ||
| 74 | .p.extensions = "ipu", | ||
| 75 | .p.flags = AVFMT_GENERIC_INDEX, | ||
| 76 | .p.priv_class = &ff_raw_demuxer_class, | ||
| 77 | .read_probe = ipu_read_probe, | ||
| 78 | .read_header = ipu_read_header, | ||
| 79 | .read_packet = ff_raw_read_partial_packet, | ||
| 80 | .raw_codec_id = AV_CODEC_ID_IPU, | ||
| 81 | .priv_data_size = sizeof(FFRawDemuxerContext), | ||
| 82 | }; | ||
| 83 |