diff options
Diffstat (limited to 'libavformat/seek-test.c')
| -rw-r--r-- | libavformat/seek-test.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/libavformat/seek-test.c b/libavformat/seek-test.c new file mode 100644 index 0000000000..71b2a2d6c0 --- /dev/null +++ b/libavformat/seek-test.c @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2003 Fabrice Bellard + * Copyright (c) 2007 Michael Niedermayer + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include "libavutil/common.h" +#include "libavutil/mathematics.h" +#include "libavformat/avformat.h" + +#undef exit +#undef printf +#undef fprintf + +static char buffer[20]; + +static const char *ret_str(int v) +{ + switch (v) { + case AVERROR_EOF: return "-EOF"; + case AVERROR(EIO): return "-EIO"; + case AVERROR(ENOMEM): return "-ENOMEM"; + case AVERROR(EINVAL): return "-EINVAL"; + default: + snprintf(buffer, sizeof(buffer), "%2d", v); + return buffer; + } +} + +static void ts_str(char buffer[60], int64_t ts, AVRational base) +{ + double tsval; + if (ts == AV_NOPTS_VALUE) { + strcpy(buffer, " NOPTS "); + return; + } + tsval = ts * av_q2d(base); + snprintf(buffer, 60, "%9f", tsval); +} + +int main(int argc, char **argv) +{ + const char *filename; + AVFormatContext *ic = NULL; + int i, ret, stream_id; + int64_t timestamp; + AVFormatParameters params, *ap= ¶ms; + memset(ap, 0, sizeof(params)); + ap->channels=1; + ap->sample_rate= 22050; + + /* initialize libavcodec, and register all codecs and formats */ + av_register_all(); + + if (argc != 2) { + printf("usage: %s input_file\n" + "\n", argv[0]); + exit(1); + } + + filename = argv[1]; + + ret = av_open_input_file(&ic, filename, NULL, 0, ap); + if (ret < 0) { + fprintf(stderr, "cannot open %s\n", filename); + exit(1); + } + + ret = av_find_stream_info(ic); + if (ret < 0) { + fprintf(stderr, "%s: could not find codec parameters\n", filename); + exit(1); + } + + for(i=0; ; i++){ + AVPacket pkt; + AVStream *av_uninit(st); + char ts_buf[60]; + + memset(&pkt, 0, sizeof(pkt)); + if(ret>=0){ + ret= av_read_frame(ic, &pkt); + if(ret>=0){ + char dts_buf[60]; + st= ic->streams[pkt.stream_index]; + ts_str(dts_buf, pkt.dts, st->time_base); + ts_str(ts_buf, pkt.pts, st->time_base); + 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); + av_free_packet(&pkt); + } else + printf("ret:%s", ret_str(ret)); // necessary to avoid trailing whitespace + printf("\n"); + } + + if(i>25) break; + + stream_id= (i>>1)%(ic->nb_streams+1) - 1; + timestamp= (i*19362894167LL) % (4*AV_TIME_BASE) - AV_TIME_BASE; + if(stream_id>=0){ + st= ic->streams[stream_id]; + timestamp= av_rescale_q(timestamp, AV_TIME_BASE_Q, st->time_base); + } + //FIXME fully test the new seek API + if(i&1) ret = avformat_seek_file(ic, stream_id, INT64_MIN, timestamp, timestamp, 0); + else ret = avformat_seek_file(ic, stream_id, timestamp, timestamp, INT64_MAX, 0); + ts_str(ts_buf, timestamp, stream_id < 0 ? AV_TIME_BASE_Q : st->time_base); + printf("ret:%-10s st:%2d flags:%d ts:%s\n", ret_str(ret), stream_id, i&1, ts_buf); + } + + av_close_input_file(ic); + + return 0; +} |