early-access version 1432
This commit is contained in:
pineappleEA
791
externals/ffmpeg/libavformat/tests/movenc.c
vendored
Executable file
791
externals/ffmpeg/libavformat/tests/movenc.c
vendored
Executable file
@@ -0,0 +1,791 @@
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/*
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* Copyright (c) 2015 Martin Storsjo
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/md5.h"
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#include "libavformat/avformat.h"
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if !HAVE_GETOPT
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#include "compat/getopt.c"
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#endif
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#define HASH_SIZE 16
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static const uint8_t h264_extradata[] = {
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0x01, 0x4d, 0x40, 0x1e, 0xff, 0xe1, 0x00, 0x02, 0x67, 0x4d, 0x01, 0x00, 0x02, 0x68, 0xef
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};
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static const uint8_t aac_extradata[] = {
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0x12, 0x10
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};
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static const char *format = "mp4";
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AVFormatContext *ctx;
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uint8_t iobuf[32768];
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AVDictionary *opts;
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int write_file;
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const char *cur_name;
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FILE* out;
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int out_size;
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struct AVMD5* md5;
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uint8_t hash[HASH_SIZE];
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AVStream *video_st, *audio_st;
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int64_t audio_dts, video_dts;
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int bframes;
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int64_t duration;
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int64_t audio_duration;
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int frames;
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int gop_size;
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int64_t next_p_pts;
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enum AVPictureType last_picture;
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int skip_write;
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int skip_write_audio;
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int clear_duration;
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int force_iobuf_size;
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int do_interleave;
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int fake_pkt_duration;
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int num_warnings;
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int check_faults;
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static void count_warnings(void *avcl, int level, const char *fmt, va_list vl)
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{
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if (level == AV_LOG_WARNING)
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num_warnings++;
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}
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static void init_count_warnings(void)
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{
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av_log_set_callback(count_warnings);
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num_warnings = 0;
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}
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static void reset_count_warnings(void)
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{
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av_log_set_callback(av_log_default_callback);
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}
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static int io_write(void *opaque, uint8_t *buf, int size)
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{
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out_size += size;
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av_md5_update(md5, buf, size);
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if (out)
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fwrite(buf, 1, size, out);
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return size;
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}
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static int io_write_data_type(void *opaque, uint8_t *buf, int size,
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enum AVIODataMarkerType type, int64_t time)
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{
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char timebuf[30], content[5] = { 0 };
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const char *str;
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switch (type) {
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case AVIO_DATA_MARKER_HEADER: str = "header"; break;
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case AVIO_DATA_MARKER_SYNC_POINT: str = "sync"; break;
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case AVIO_DATA_MARKER_BOUNDARY_POINT: str = "boundary"; break;
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case AVIO_DATA_MARKER_UNKNOWN: str = "unknown"; break;
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case AVIO_DATA_MARKER_TRAILER: str = "trailer"; break;
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default: str = "unknown"; break;
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}
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if (time == AV_NOPTS_VALUE)
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snprintf(timebuf, sizeof(timebuf), "nopts");
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else
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snprintf(timebuf, sizeof(timebuf), "%"PRId64, time);
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// There can be multiple header/trailer callbacks, only log the box type
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// for header at out_size == 0
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if (type != AVIO_DATA_MARKER_UNKNOWN &&
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type != AVIO_DATA_MARKER_TRAILER &&
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(type != AVIO_DATA_MARKER_HEADER || out_size == 0) &&
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size >= 8)
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memcpy(content, &buf[4], 4);
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else
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snprintf(content, sizeof(content), "-");
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printf("write_data len %d, time %s, type %s atom %s\n", size, timebuf, str, content);
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return io_write(opaque, buf, size);
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}
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static void init_out(const char *name)
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{
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char buf[100];
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cur_name = name;
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snprintf(buf, sizeof(buf), "%s.%s", cur_name, format);
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av_md5_init(md5);
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if (write_file) {
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out = fopen(buf, "wb");
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if (!out)
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perror(buf);
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}
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out_size = 0;
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}
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static void close_out(void)
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{
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int i;
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av_md5_final(md5, hash);
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for (i = 0; i < HASH_SIZE; i++)
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printf("%02x", hash[i]);
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printf(" %d %s\n", out_size, cur_name);
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if (out)
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fclose(out);
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out = NULL;
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}
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static void check_func(int value, int line, const char *msg, ...)
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{
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if (!value) {
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va_list ap;
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va_start(ap, msg);
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printf("%d: ", line);
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vprintf(msg, ap);
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printf("\n");
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check_faults++;
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va_end(ap);
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}
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}
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#define check(value, ...) check_func(value, __LINE__, __VA_ARGS__)
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static void init_fps(int bf, int audio_preroll, int fps)
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{
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AVStream *st;
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int iobuf_size = force_iobuf_size ? force_iobuf_size : sizeof(iobuf);
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ctx = avformat_alloc_context();
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if (!ctx)
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exit(1);
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ctx->oformat = av_guess_format(format, NULL, NULL);
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if (!ctx->oformat)
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exit(1);
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ctx->pb = avio_alloc_context(iobuf, iobuf_size, AVIO_FLAG_WRITE, NULL, NULL, io_write, NULL);
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if (!ctx->pb)
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exit(1);
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ctx->pb->write_data_type = io_write_data_type;
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ctx->flags |= AVFMT_FLAG_BITEXACT;
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st = avformat_new_stream(ctx, NULL);
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if (!st)
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exit(1);
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st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
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st->codecpar->codec_id = AV_CODEC_ID_H264;
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st->codecpar->width = 640;
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st->codecpar->height = 480;
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st->time_base.num = 1;
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st->time_base.den = 30;
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st->codecpar->extradata_size = sizeof(h264_extradata);
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st->codecpar->extradata = av_mallocz(st->codecpar->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!st->codecpar->extradata)
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exit(1);
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memcpy(st->codecpar->extradata, h264_extradata, sizeof(h264_extradata));
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video_st = st;
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st = avformat_new_stream(ctx, NULL);
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if (!st)
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exit(1);
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st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
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st->codecpar->codec_id = AV_CODEC_ID_AAC;
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st->codecpar->sample_rate = 44100;
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st->codecpar->channels = 2;
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st->time_base.num = 1;
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st->time_base.den = 44100;
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st->codecpar->extradata_size = sizeof(aac_extradata);
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st->codecpar->extradata = av_mallocz(st->codecpar->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
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if (!st->codecpar->extradata)
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exit(1);
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memcpy(st->codecpar->extradata, aac_extradata, sizeof(aac_extradata));
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audio_st = st;
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if (avformat_write_header(ctx, &opts) < 0)
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exit(1);
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av_dict_free(&opts);
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frames = 0;
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gop_size = 30;
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duration = video_st->time_base.den / fps;
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audio_duration = 1024LL * audio_st->time_base.den / audio_st->codecpar->sample_rate;
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if (audio_preroll)
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audio_preroll = 2048LL * audio_st->time_base.den / audio_st->codecpar->sample_rate;
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bframes = bf;
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video_dts = bframes ? -duration : 0;
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audio_dts = -audio_preroll;
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}
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static void init(int bf, int audio_preroll)
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{
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init_fps(bf, audio_preroll, 30);
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}
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static void mux_frames(int n, int c)
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{
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int end_frames = frames + n;
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while (1) {
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AVPacket pkt;
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uint8_t pktdata[8] = { 0 };
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av_init_packet(&pkt);
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if (av_compare_ts(audio_dts, audio_st->time_base, video_dts, video_st->time_base) < 0) {
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pkt.dts = pkt.pts = audio_dts;
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pkt.stream_index = 1;
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pkt.duration = audio_duration;
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audio_dts += audio_duration;
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} else {
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if (frames == end_frames)
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break;
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pkt.dts = video_dts;
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pkt.stream_index = 0;
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pkt.duration = duration;
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if ((frames % gop_size) == 0) {
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pkt.flags |= AV_PKT_FLAG_KEY;
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last_picture = AV_PICTURE_TYPE_I;
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pkt.pts = pkt.dts + duration;
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video_dts = pkt.pts;
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} else {
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if (last_picture == AV_PICTURE_TYPE_P) {
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last_picture = AV_PICTURE_TYPE_B;
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pkt.pts = pkt.dts;
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video_dts = next_p_pts;
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} else {
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last_picture = AV_PICTURE_TYPE_P;
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if (((frames + 1) % gop_size) == 0) {
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pkt.pts = pkt.dts + duration;
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video_dts = pkt.pts;
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} else {
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next_p_pts = pkt.pts = pkt.dts + 2 * duration;
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video_dts += duration;
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}
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}
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}
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if (!bframes)
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pkt.pts = pkt.dts;
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if (fake_pkt_duration)
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pkt.duration = fake_pkt_duration;
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frames++;
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}
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if (clear_duration)
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pkt.duration = 0;
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AV_WB32(pktdata + 4, pkt.pts);
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pkt.data = pktdata;
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pkt.size = 8;
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if (skip_write)
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continue;
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if (skip_write_audio && pkt.stream_index == 1)
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continue;
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if (c) {
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pkt.pts += (1LL<<32);
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pkt.dts += (1LL<<32);
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}
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if (do_interleave)
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av_interleaved_write_frame(ctx, &pkt);
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else
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av_write_frame(ctx, &pkt);
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}
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}
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static void mux_gops(int n)
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{
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mux_frames(gop_size * n, 0);
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}
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static void skip_gops(int n)
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{
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skip_write = 1;
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mux_gops(n);
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skip_write = 0;
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}
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static void signal_init_ts(void)
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{
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AVPacket pkt;
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av_init_packet(&pkt);
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pkt.size = 0;
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pkt.data = NULL;
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pkt.stream_index = 0;
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pkt.dts = video_dts;
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pkt.pts = 0;
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av_write_frame(ctx, &pkt);
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pkt.stream_index = 1;
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pkt.dts = pkt.pts = audio_dts;
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av_write_frame(ctx, &pkt);
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}
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static void finish(void)
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{
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av_write_trailer(ctx);
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avio_context_free(&ctx->pb);
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avformat_free_context(ctx);
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ctx = NULL;
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}
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static void help(void)
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{
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printf("movenc-test [-w]\n"
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"-w write output into files\n");
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}
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int main(int argc, char **argv)
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{
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int c;
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uint8_t header[HASH_SIZE];
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uint8_t content[HASH_SIZE];
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int empty_moov_pos;
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int prev_pos;
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for (;;) {
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c = getopt(argc, argv, "wh");
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if (c == -1)
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break;
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switch (c) {
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case 'w':
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write_file = 1;
|
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break;
|
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default:
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||||
case 'h':
|
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help();
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return 0;
|
||||
}
|
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}
|
||||
|
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md5 = av_md5_alloc();
|
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if (!md5)
|
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return 1;
|
||||
|
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// Write a fragmented file with an initial moov that actually contains some
|
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// samples. One moov+mdat with 1 second of data and one moof+mdat with 1
|
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// second of data.
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init_out("non-empty-moov");
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av_dict_set(&opts, "movflags", "frag_keyframe", 0);
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init(0, 0);
|
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mux_gops(2);
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finish();
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close_out();
|
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|
||||
// Write a similar file, but with B-frames and audio preroll, handled
|
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// via an edit list.
|
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init_out("non-empty-moov-elst");
|
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av_dict_set(&opts, "movflags", "frag_keyframe", 0);
|
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av_dict_set(&opts, "use_editlist", "1", 0);
|
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init(1, 1);
|
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mux_gops(2);
|
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finish();
|
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close_out();
|
||||
|
||||
// Use B-frames but no audio-preroll, but without an edit list.
|
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// Due to avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO, the dts
|
||||
// of the first audio packet is > 0, but it is set to zero since edit
|
||||
// lists aren't used, increasing the duration of the first packet instead.
|
||||
init_out("non-empty-moov-no-elst");
|
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av_dict_set(&opts, "movflags", "frag_keyframe", 0);
|
||||
av_dict_set(&opts, "use_editlist", "0", 0);
|
||||
init(1, 0);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
format = "ismv";
|
||||
// Write an ISMV, with B-frames and audio preroll.
|
||||
init_out("ismv");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe", 0);
|
||||
init(1, 1);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
format = "mp4";
|
||||
|
||||
// An initial moov that doesn't contain any samples, followed by two
|
||||
// moof+mdat pairs.
|
||||
init_out("empty-moov");
|
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av_dict_set(&opts, "movflags", "frag_keyframe+empty_moov", 0);
|
||||
av_dict_set(&opts, "use_editlist", "0", 0);
|
||||
init(0, 0);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
memcpy(content, hash, HASH_SIZE);
|
||||
|
||||
// Similar to the previous one, but with input that doesn't start at
|
||||
// pts/dts 0. avoid_negative_ts behaves in the same way as
|
||||
// in non-empty-moov-no-elst above.
|
||||
init_out("empty-moov-no-elst");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+empty_moov", 0);
|
||||
init(1, 0);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
// Same as the previous one, but disable avoid_negative_ts (which
|
||||
// would require using an edit list, but with empty_moov, one can't
|
||||
// write a sensible edit list, when the start timestamps aren't known).
|
||||
// This should trigger a warning - we check that the warning is produced.
|
||||
init_count_warnings();
|
||||
init_out("empty-moov-no-elst-no-adjust");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+empty_moov", 0);
|
||||
av_dict_set(&opts, "avoid_negative_ts", "0", 0);
|
||||
init(1, 0);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
reset_count_warnings();
|
||||
check(num_warnings > 0, "No warnings printed for unhandled start offset");
|
||||
|
||||
// Verify that delay_moov produces the same as empty_moov for
|
||||
// simple input
|
||||
init_out("delay-moov");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov", 0);
|
||||
av_dict_set(&opts, "use_editlist", "0", 0);
|
||||
init(0, 0);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
check(!memcmp(hash, content, HASH_SIZE), "delay_moov differs from empty_moov");
|
||||
|
||||
// Test writing content that requires an edit list using delay_moov
|
||||
init_out("delay-moov-elst");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov", 0);
|
||||
init(1, 1);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
// Test writing a file with one track lacking packets, with delay_moov.
|
||||
skip_write_audio = 1;
|
||||
init_out("delay-moov-empty-track");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov", 0);
|
||||
init(0, 0);
|
||||
mux_gops(2);
|
||||
// The automatic flushing shouldn't output anything, since we're still
|
||||
// waiting for data for some tracks
|
||||
check(out_size == 0, "delay_moov flushed prematurely");
|
||||
// When closed (or manually flushed), all the written data should still
|
||||
// be output.
|
||||
finish();
|
||||
close_out();
|
||||
check(out_size > 0, "delay_moov didn't output anything");
|
||||
|
||||
// Check that manually flushing still outputs things as expected. This
|
||||
// produces two fragments, while the one above produces only one.
|
||||
init_out("delay-moov-empty-track-flush");
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov", 0);
|
||||
init(0, 0);
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL); // Force writing the moov
|
||||
check(out_size > 0, "No moov written");
|
||||
av_write_frame(ctx, NULL);
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
skip_write_audio = 0;
|
||||
|
||||
|
||||
|
||||
// Verify that the header written by delay_moov when manually flushed
|
||||
// is identical to the one by empty_moov.
|
||||
init_out("empty-moov-header");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+empty_moov", 0);
|
||||
av_dict_set(&opts, "use_editlist", "0", 0);
|
||||
init(0, 0);
|
||||
close_out();
|
||||
memcpy(header, hash, HASH_SIZE);
|
||||
init_out("empty-moov-content");
|
||||
mux_gops(2);
|
||||
// Written 2 seconds of content, with an automatic flush after 1 second.
|
||||
check(out_size > 0, "No automatic flush?");
|
||||
empty_moov_pos = prev_pos = out_size;
|
||||
// Manually flush the second fragment
|
||||
av_write_frame(ctx, NULL);
|
||||
check(out_size > prev_pos, "No second fragment flushed?");
|
||||
prev_pos = out_size;
|
||||
// Check that an extra flush doesn't output any more data
|
||||
av_write_frame(ctx, NULL);
|
||||
check(out_size == prev_pos, "More data written?");
|
||||
close_out();
|
||||
memcpy(content, hash, HASH_SIZE);
|
||||
// Ignore the trailer written here
|
||||
finish();
|
||||
|
||||
init_out("delay-moov-header");
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov", 0);
|
||||
av_dict_set(&opts, "use_editlist", "0", 0);
|
||||
init(0, 0);
|
||||
check(out_size == 0, "Output written during init with delay_moov");
|
||||
mux_gops(1); // Write 1 second of content
|
||||
av_write_frame(ctx, NULL); // Force writing the moov
|
||||
close_out();
|
||||
check(!memcmp(hash, header, HASH_SIZE), "delay_moov header differs from empty_moov");
|
||||
init_out("delay-moov-content");
|
||||
av_write_frame(ctx, NULL); // Flush the first fragment
|
||||
check(out_size == empty_moov_pos, "Manually flushed content differs from automatically flushed, %d vs %d", out_size, empty_moov_pos);
|
||||
mux_gops(1); // Write the rest of the content
|
||||
av_write_frame(ctx, NULL); // Flush the second fragment
|
||||
close_out();
|
||||
check(!memcmp(hash, content, HASH_SIZE), "delay_moov content differs from empty_moov");
|
||||
finish();
|
||||
|
||||
|
||||
// Verify that we can produce an identical second fragment without
|
||||
// writing the first one. First write the reference fragments that
|
||||
// we want to reproduce.
|
||||
av_dict_set(&opts, "movflags", "frag_custom+empty_moov+dash", 0);
|
||||
init(0, 0);
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL); // Output the first fragment
|
||||
init_out("empty-moov-second-frag");
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
memcpy(content, hash, HASH_SIZE);
|
||||
finish();
|
||||
|
||||
// Produce the same second fragment without actually writing the first
|
||||
// one before.
|
||||
av_dict_set(&opts, "movflags", "frag_custom+empty_moov+dash+frag_discont", 0);
|
||||
av_dict_set(&opts, "fragment_index", "2", 0);
|
||||
av_dict_set(&opts, "avoid_negative_ts", "0", 0);
|
||||
av_dict_set(&opts, "use_editlist", "0", 0);
|
||||
init(0, 0);
|
||||
skip_gops(1);
|
||||
init_out("empty-moov-second-frag-discont");
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
check(!memcmp(hash, content, HASH_SIZE), "discontinuously written fragment differs");
|
||||
finish();
|
||||
|
||||
// Produce the same thing by using delay_moov, which requires a slightly
|
||||
// different call sequence.
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash+frag_discont", 0);
|
||||
av_dict_set(&opts, "fragment_index", "2", 0);
|
||||
init(0, 0);
|
||||
skip_gops(1);
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL); // Output the moov
|
||||
init_out("delay-moov-second-frag-discont");
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
check(!memcmp(hash, content, HASH_SIZE), "discontinuously written fragment differs");
|
||||
finish();
|
||||
|
||||
|
||||
// Test discontinuously written fragments with B-frames (where the
|
||||
// assumption of starting at pts=0 works) but not with audio preroll
|
||||
// (which can't be guessed).
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash", 0);
|
||||
init(1, 0);
|
||||
mux_gops(1);
|
||||
init_out("delay-moov-elst-init");
|
||||
av_write_frame(ctx, NULL); // Output the moov
|
||||
close_out();
|
||||
memcpy(header, hash, HASH_SIZE);
|
||||
av_write_frame(ctx, NULL); // Output the first fragment
|
||||
init_out("delay-moov-elst-second-frag");
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
memcpy(content, hash, HASH_SIZE);
|
||||
finish();
|
||||
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash+frag_discont", 0);
|
||||
av_dict_set(&opts, "fragment_index", "2", 0);
|
||||
init(1, 0);
|
||||
skip_gops(1);
|
||||
mux_gops(1); // Write the second fragment
|
||||
init_out("delay-moov-elst-init-discont");
|
||||
av_write_frame(ctx, NULL); // Output the moov
|
||||
close_out();
|
||||
check(!memcmp(hash, header, HASH_SIZE), "discontinuously written header differs");
|
||||
init_out("delay-moov-elst-second-frag-discont");
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
check(!memcmp(hash, content, HASH_SIZE), "discontinuously written fragment differs");
|
||||
finish();
|
||||
|
||||
|
||||
// Test discontinuously written fragments with B-frames and audio preroll,
|
||||
// properly signaled.
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash", 0);
|
||||
init(1, 1);
|
||||
mux_gops(1);
|
||||
init_out("delay-moov-elst-signal-init");
|
||||
av_write_frame(ctx, NULL); // Output the moov
|
||||
close_out();
|
||||
memcpy(header, hash, HASH_SIZE);
|
||||
av_write_frame(ctx, NULL); // Output the first fragment
|
||||
init_out("delay-moov-elst-signal-second-frag");
|
||||
mux_gops(1);
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
memcpy(content, hash, HASH_SIZE);
|
||||
finish();
|
||||
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash+frag_discont", 0);
|
||||
av_dict_set(&opts, "fragment_index", "2", 0);
|
||||
init(1, 1);
|
||||
signal_init_ts();
|
||||
skip_gops(1);
|
||||
mux_gops(1); // Write the second fragment
|
||||
init_out("delay-moov-elst-signal-init-discont");
|
||||
av_write_frame(ctx, NULL); // Output the moov
|
||||
close_out();
|
||||
check(!memcmp(hash, header, HASH_SIZE), "discontinuously written header differs");
|
||||
init_out("delay-moov-elst-signal-second-frag-discont");
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
check(!memcmp(hash, content, HASH_SIZE), "discontinuously written fragment differs");
|
||||
finish();
|
||||
|
||||
|
||||
// Test muxing discontinuous fragments with very large (> (1<<31)) timestamps.
|
||||
av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash+frag_discont", 0);
|
||||
av_dict_set(&opts, "fragment_index", "2", 0);
|
||||
init(1, 1);
|
||||
signal_init_ts();
|
||||
skip_gops(1);
|
||||
mux_frames(gop_size, 1); // Write the second fragment
|
||||
init_out("delay-moov-elst-signal-init-discont-largets");
|
||||
av_write_frame(ctx, NULL); // Output the moov
|
||||
close_out();
|
||||
init_out("delay-moov-elst-signal-second-frag-discont-largets");
|
||||
av_write_frame(ctx, NULL); // Output the second fragment
|
||||
close_out();
|
||||
finish();
|
||||
|
||||
// Test VFR content, with sidx atoms (which declare the pts duration
|
||||
// of a fragment, forcing overriding the start pts of the next one).
|
||||
// Here, the fragment duration in pts is significantly different from
|
||||
// the duration in dts. The video stream starts at dts=-10,pts=0, and
|
||||
// the second fragment starts at dts=155,pts=156. The trun duration sum
|
||||
// of the first fragment is 165, which also is written as
|
||||
// baseMediaDecodeTime in the tfdt in the second fragment. The sidx for
|
||||
// the first fragment says earliest_presentation_time = 0 and
|
||||
// subsegment_duration = 156, which also matches the sidx in the second
|
||||
// fragment. For the audio stream, the pts and dts durations also don't
|
||||
// match - the input stream starts at pts=-2048, but that part is excluded
|
||||
// by the edit list.
|
||||
init_out("vfr");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov+dash", 0);
|
||||
init_fps(1, 1, 3);
|
||||
mux_frames(gop_size/2, 0);
|
||||
duration /= 10;
|
||||
mux_frames(gop_size/2, 0);
|
||||
mux_gops(1);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
// Test VFR content, with cleared duration fields. In these cases,
|
||||
// the muxer must guess the duration of the last packet of each
|
||||
// fragment. As long as the framerate doesn't vary (too much) at the
|
||||
// fragment edge, it works just fine. Additionally, when automatically
|
||||
// cutting fragments, the muxer already know the timestamps of the next
|
||||
// packet for one stream (in most cases the video stream), avoiding
|
||||
// having to use guesses for that one.
|
||||
init_count_warnings();
|
||||
clear_duration = 1;
|
||||
init_out("vfr-noduration");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov+dash", 0);
|
||||
init_fps(1, 1, 3);
|
||||
mux_frames(gop_size/2, 0);
|
||||
duration /= 10;
|
||||
mux_frames(gop_size/2, 0);
|
||||
mux_gops(1);
|
||||
finish();
|
||||
close_out();
|
||||
clear_duration = 0;
|
||||
reset_count_warnings();
|
||||
check(num_warnings > 0, "No warnings printed for filled in durations");
|
||||
|
||||
// Test with an IO buffer size that is too small to hold a full fragment;
|
||||
// this will cause write_data_type to be called with the type unknown.
|
||||
force_iobuf_size = 1500;
|
||||
init_out("large_frag");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov", 0);
|
||||
init_fps(1, 1, 3);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
force_iobuf_size = 0;
|
||||
|
||||
// Test VFR content with bframes with interleaving.
|
||||
// Here, using av_interleaved_write_frame allows the muxer to get the
|
||||
// fragment end durations right. We always set the packet duration to
|
||||
// the expected, but we simulate dropped frames at one point.
|
||||
do_interleave = 1;
|
||||
init_out("vfr-noduration-interleave");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov", 0);
|
||||
av_dict_set(&opts, "frag_duration", "650000", 0);
|
||||
init_fps(1, 1, 30);
|
||||
mux_frames(gop_size/2, 0);
|
||||
// Pretend that the packet duration is the normal, even if
|
||||
// we actually skip a bunch of frames. (I.e., simulate that
|
||||
// we don't know of the framedrop in advance.)
|
||||
fake_pkt_duration = duration;
|
||||
duration *= 10;
|
||||
mux_frames(1, 0);
|
||||
fake_pkt_duration = 0;
|
||||
duration /= 10;
|
||||
mux_frames(gop_size/2 - 1, 0);
|
||||
mux_gops(1);
|
||||
finish();
|
||||
close_out();
|
||||
clear_duration = 0;
|
||||
do_interleave = 0;
|
||||
|
||||
// Write a fragmented file with b-frames and audio preroll,
|
||||
// with negative cts values, removing the edit list for the
|
||||
// video track.
|
||||
init_out("delay-moov-elst-neg-cts");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+delay_moov+negative_cts_offsets", 0);
|
||||
init(1, 1);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
// Write a fragmented file with b-frames without audio preroll,
|
||||
// with negative cts values, avoiding any edit lists, allowing
|
||||
// to use empty_moov instead of delay_moov.
|
||||
init_out("empty-moov-neg-cts");
|
||||
av_dict_set(&opts, "movflags", "frag_keyframe+empty_moov+negative_cts_offsets", 0);
|
||||
init(1, 0);
|
||||
mux_gops(2);
|
||||
finish();
|
||||
close_out();
|
||||
|
||||
av_free(md5);
|
||||
|
||||
return check_faults > 0 ? 1 : 0;
|
||||
}
|
||||
Reference in New Issue
Block a user