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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2003 Fabrice Bellard |
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| 3 | * Copyright (c) 2007 Michael Niedermayer |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #include |
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| 23 | #include |
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| 24 | #include |
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| 25 | #include |
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| 26 | |||
| 27 | #include "libavutil/common.h" |
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| 28 | #include "libavutil/mathematics.h" |
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| 29 | #include "libavformat/avformat.h" |
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| 30 | |||
| 31 | static char buffer[20]; |
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| 32 | |||
| 33 | static const char *ret_str(int v) |
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| 34 | { |
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| 35 | switch (v) { |
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| 36 | case AVERROR_EOF: return "-EOF"; |
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| 37 | case AVERROR(EIO): return "-EIO"; |
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| 38 | case AVERROR(ENOMEM): return "-ENOMEM"; |
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| 39 | case AVERROR(EINVAL): return "-EINVAL"; |
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| 40 | default: |
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| 41 | snprintf(buffer, sizeof(buffer), "%2d", v); |
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| 42 | return buffer; |
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| 43 | } |
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| 44 | } |
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| 45 | |||
| 46 | static void ts_str(char buffer[60], int64_t ts, AVRational base) |
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| 47 | { |
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| 48 | if (ts == AV_NOPTS_VALUE) { |
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| 49 | strcpy(buffer, " NOPTS "); |
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| 50 | return; |
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| 51 | } |
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| 52 | ts= av_rescale_q(ts, base, (AVRational){1, 1000000}); |
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| 53 | snprintf(buffer, 60, "%c%"PRId64".%06"PRId64"", ts<0 ? '-' : ' ', FFABS(ts)/1000000, FFABS(ts)%1000000); |
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| 54 | } |
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| 55 | |||
| 56 | int main(int argc, char **argv) |
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| 57 | { |
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| 58 | const char *filename; |
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| 59 | AVFormatContext *ic = NULL; |
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| 60 | int i, ret, stream_id; |
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| 61 | int j; |
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| 62 | int64_t timestamp; |
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| 63 | AVDictionary *format_opts = NULL; |
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| 64 | int64_t seekfirst = AV_NOPTS_VALUE; |
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| 65 | int firstback=0; |
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| 66 | int frame_count = 1; |
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| 67 | int duration = 4; |
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| 68 | |||
| 69 | for(i=2; i |
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| 70 | if (!strcmp(argv[i], "-seekforw")){ |
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| 71 | seekfirst = atoi(argv[i+1]); |
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| 72 | } else if(!strcmp(argv[i], "-seekback")){ |
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| 73 | seekfirst = atoi(argv[i+1]); |
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| 74 | firstback = 1; |
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| 75 | } else if(!strcmp(argv[i], "-frames")){ |
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| 76 | frame_count = atoi(argv[i+1]); |
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| 77 | } else if(!strcmp(argv[i], "-duration")){ |
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| 78 | duration = atoi(argv[i+1]); |
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| 79 | } else { |
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| 80 | argc = 1; |
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| 81 | } |
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| 82 | } |
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| 83 | |||
| 84 | av_dict_set(&format_opts, "channels", "1", 0); |
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| 85 | av_dict_set(&format_opts, "sample_rate", "22050", 0); |
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| 86 | |||
| 87 | /* initialize libavcodec, and register all codecs and formats */ |
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| 88 | av_register_all(); |
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| 89 | |||
| 90 | if (argc < 2) { |
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| 91 | printf("usage: %s input_file\n" |
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| 92 | "\n", argv[0]); |
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| 93 | return 1; |
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| 94 | } |
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| 95 | |||
| 96 | filename = argv[1]; |
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| 97 | |||
| 98 | ret = avformat_open_input(&ic, filename, NULL, &format_opts); |
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| 99 | av_dict_free(&format_opts); |
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| 100 | if (ret < 0) { |
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| 101 | fprintf(stderr, "cannot open %s\n", filename); |
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| 102 | return 1; |
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| 103 | } |
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| 104 | |||
| 105 | ret = avformat_find_stream_info(ic, NULL); |
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| 106 | if (ret < 0) { |
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| 107 | fprintf(stderr, "%s: could not find codec parameters\n", filename); |
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| 108 | return 1; |
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| 109 | } |
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| 110 | |||
| 111 | if(seekfirst != AV_NOPTS_VALUE){ |
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| 112 | if(firstback) avformat_seek_file(ic, -1, INT64_MIN, seekfirst, seekfirst, 0); |
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| 113 | else avformat_seek_file(ic, -1, seekfirst, seekfirst, INT64_MAX, 0); |
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| 114 | } |
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| 115 | for(i=0; ; i++){ |
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| 116 | AVPacket pkt = { 0 }; |
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| 117 | AVStream *av_uninit(st); |
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| 118 | char ts_buf[60]; |
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| 119 | |||
| 120 | if(ret>=0){ |
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| 121 | for(j=0; j |
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| 122 | ret= av_read_frame(ic, &pkt); |
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| 123 | if(ret>=0){ |
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| 124 | char dts_buf[60]; |
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| 125 | st= ic->streams[pkt.stream_index]; |
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| 126 | ts_str(dts_buf, pkt.dts, st->time_base); |
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| 127 | ts_str(ts_buf, pkt.pts, st->time_base); |
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| 128 | printf("ret:%-10s st:%2d flags:%d dts:%s pts:%s pos:%7" PRId64 " size:%6d", ret_str(ret), pkt.stream_index, pkt.flags, dts_buf, ts_buf, pkt.pos, pkt.size); |
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| 129 | av_free_packet(&pkt); |
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| 130 | } else |
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| 131 | printf("ret:%s", ret_str(ret)); // necessary to avoid trailing whitespace |
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| 132 | printf("\n"); |
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| 133 | } |
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| 134 | } |
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| 135 | |||
| 136 | if(i>25) break; |
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| 137 | |||
| 138 | stream_id= (i>>1)%(ic->nb_streams+1) - 1; |
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| 139 | timestamp= (i*19362894167LL) % (duration*AV_TIME_BASE) - AV_TIME_BASE; |
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| 140 | if(stream_id>=0){ |
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| 141 | st= ic->streams[stream_id]; |
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| 142 | timestamp= av_rescale_q(timestamp, AV_TIME_BASE_Q, st->time_base); |
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| 143 | } |
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| 144 | //FIXME fully test the new seek API |
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| 145 | if(i&1) ret = avformat_seek_file(ic, stream_id, INT64_MIN, timestamp, timestamp, 0); |
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| 146 | else ret = avformat_seek_file(ic, stream_id, timestamp, timestamp, INT64_MAX, 0); |
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| 147 | ts_str(ts_buf, timestamp, stream_id < 0 ? AV_TIME_BASE_Q : st->time_base); |
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| 148 | printf("ret:%-10s st:%2d flags:%d ts:%s\n", ret_str(ret), stream_id, i&1, ts_buf); |
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| 149 | } |
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| 150 | |||
| 151 | avformat_close_input(&ic); |
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| 152 | |||
| 153 | return 0; |
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| 154 | } |