| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * frame CRC encoder (for codec/format testing) | ||
| 3 | * Copyright (c) 2002 Fabrice Bellard | ||
| 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 <inttypes.h> | ||
| 23 | |||
| 24 | #include "libavutil/adler32.h" | ||
| 25 | #include "libavutil/avstring.h" | ||
| 26 | |||
| 27 | #include "libavcodec/codec_id.h" | ||
| 28 | #include "libavcodec/codec_par.h" | ||
| 29 | #include "libavcodec/packet.h" | ||
| 30 | |||
| 31 | #include "avformat.h" | ||
| 32 | #include "internal.h" | ||
| 33 | #include "mux.h" | ||
| 34 | |||
| 35 | 1551 | static int framecrc_write_header(struct AVFormatContext *s) | |
| 36 | { | ||
| 37 | int i; | ||
| 38 |
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3341 | for (i = 0; i < s->nb_streams; i++) { |
| 39 | 1790 | AVStream *st = s->streams[i]; | |
| 40 | 1790 | AVCodecParameters *par = st->codecpar; | |
| 41 |
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1790 | if (par->extradata) { |
| 42 | 161 | uint32_t crc = av_adler32_update(0, par->extradata, par->extradata_size); | |
| 43 | 161 | avio_printf(s->pb, "#extradata %d: %8d, 0x%08"PRIx32"\n", | |
| 44 | i, par->extradata_size, crc); | ||
| 45 | } | ||
| 46 | } | ||
| 47 | |||
| 48 | 1551 | return ff_framehash_write_header(s); | |
| 49 | } | ||
| 50 | |||
| 51 | 83224 | static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt) | |
| 52 | { | ||
| 53 | 83224 | uint32_t crc = av_adler32_update(0, pkt->data, pkt->size); | |
| 54 | char buf[256]; | ||
| 55 | |||
| 56 | 83224 | snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08"PRIx32, | |
| 57 | pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc); | ||
| 58 |
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83224 | if (pkt->flags != AV_PKT_FLAG_KEY) |
| 59 | 4348 | av_strlcatf(buf, sizeof(buf), ", F=0x%0X", pkt->flags); | |
| 60 |
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83224 | if (pkt->side_data_elems) { |
| 61 | 1238 | av_strlcatf(buf, sizeof(buf), ", S=%d", pkt->side_data_elems); | |
| 62 | |||
| 63 |
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2476 | for (int i = 0; i < pkt->side_data_elems; i++) { |
| 64 | 1238 | av_strlcatf(buf, sizeof(buf), ", %8"SIZE_SPECIFIER, | |
| 65 | 1238 | pkt->side_data[i].size); | |
| 66 | } | ||
| 67 | } | ||
| 68 | 83224 | av_strlcatf(buf, sizeof(buf), "\n"); | |
| 69 | 83224 | avio_write(s->pb, buf, strlen(buf)); | |
| 70 | 83224 | return 0; | |
| 71 | } | ||
| 72 | |||
| 73 | const FFOutputFormat ff_framecrc_muxer = { | ||
| 74 | .p.name = "framecrc", | ||
| 75 | .p.long_name = NULL_IF_CONFIG_SMALL("framecrc testing"), | ||
| 76 | .p.audio_codec = AV_CODEC_ID_PCM_S16LE, | ||
| 77 | .p.video_codec = AV_CODEC_ID_RAWVIDEO, | ||
| 78 | .write_header = framecrc_write_header, | ||
| 79 | .write_packet = framecrc_write_packet, | ||
| 80 | .p.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT | | ||
| 81 | AVFMT_TS_NEGATIVE, | ||
| 82 | }; | ||
| 83 |