发布于2022年4月10日 最近,在处理多媒体应用程序或视频处理库时,您可能会遇到一个警告信息,提示“流0的数据包中未设置时间戳,这已不推荐使用,并将在未来停止...
for help [flv @ 0000018fd525e780] Timestamps are unset in a packet for stream 0....This is deprecated and will stop working in the future....packet=1003.2kbits/s speed=0.984x [rtsp @ 0000018fd706c040] RTP: missed 207 packets frame= 1793 fps=...for help [hls @ 000001e5d83bddc0] Timestamps are unset in a packet for stream 0....This is deprecated and will stop working in the future.
for help[mp4 @ 0x3913260] Timestamps are unset in a packet for stream 0....This is deprecated and will stop working in the future....Fix your code to set the timestamps properlyframe= 1479 fps=0.0 q=-1.0 Lsize= 4890kB time=00:00:58.31...bitrate= 687.0kbits/s speed=2.41e+03x video:4884kB audio:0kB subtitle:0kB other streams:0kB global headers...核内存20G的服务器】 2.2 提取视频缩略图 ffmpeg -i 001709270738_1514337636497_3393223176.H264 -y -f image2 -t 0.001 -s
]; out_stream = ofmt_ctx->streams[pkt.stream_index]; /* copy packet */ // 3.3...需要根据输出封装格式重新计算pts和dts av_packet_rescale_ts(&pkt, in_stream->time_base, out_stream->time_base)...遗留问题 推流的问题:不管是用ffmpeg命令,还是用本测试程序,推流结束时会打印如下信息: [flv @ 0x22ab9c0] Timestamps are unset in a packet for...stream 0....This is deprecated and will stop working in the future.
to av_packet_unref() reduces the * reference count to 0...Such timestamps * must be converted to true pts/dts before they are stored in AVPacket. */..., -1 if unknown #if FF_API_CONVERGENCE_DURATION /** * @deprecated Same as the duration field...duration values could overflow when the * duration field was still an int. */ attribute_deprecated...int stream_index: 当前包(packet)所有流(stream)的索引(index)。 int flags: packet标志位。比如是否关键帧等。
]; out_stream = ofmt_ctx->streams[pkt.stream_index]; /* copy packet */ // 3.3...需要根据输出封装格式重新计算pts和dts av_packet_rescale_ts(&pkt, in_stream->time_base, out_stream->time_base)...遗留问题 推流的问题:不管是用 ffmpeg 命令,还是用本测试程序,推流结束时会打印如下信息 1 2 3 4 [flv @ 0x22ab9c0] Timestamps are unset in a packet...for stream 0....This is deprecated and will stop working in the future.
Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s 关于tbr、tbn和tbc的说明,原文如下,来自FFmpeg邮件列表: There.../** * Convert valid timing fields (timestamps / durations) in a packet from one * timebase to another...Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s pkt_pts=80 pkt_pts_time=0.080000 pkt_pts...* - decoding: the use of this field for decoding is deprecated...., packet); // 时间基转换 packet.stream_index = out_stream_idx; enc_ctx->time_base = av_inv_q(dec_ctx->framerate
在这两种情况下,当不再需要该数据包时,都必须使用av_packet_unref释放它。对于视频,数据包恰好包含一帧。...* decoding: set by libavformat * encoding: set by the user, replaced by libavformat if left unset...* This is the fundamental unit of time (in seconds) in terms * of which frame timestamps are represented...muxer will overwrite this field * with the timebase that will actually be used for the timestamps...:\n", pkt->stream_index); } } av_packet_unref(pkt); } if(pkt)
change audio volume (256=normal) -af filter_graph set audio filters Subtitle options: -s...-timelimit limit set max runtime in seconds in CPU user time -dump dump each input packet...-start_at_zero shift input timestamps to start at 0 when using copyts -copytb mode copy...deprecated, use -standard -isync this option is deprecated and does nothing -sdp_file file..., use -channel -tvstd standard deprecated, use -standard -vbsf video bitstream_filters deprecated
Application provided invalid, non monotonically increasing dts to muxer in stream 1: 11264 >= 0 这个问题已经找到解决的方案了...Note, muxers always require valid (monotone) timestamps */ #define AVFMT_VARIABLE_FPS 0x0400 /**< Format...If not set, the muxer will not receive a NULL packet in the write_packet function. */ #define AVFMT_TS_NONSTRICT...av_interleaved_write_frame so they start from 0...."Application provided invalid, non monotonically increasing dts to muxer in stream %d: %s >= %s\n",
) >= 0) { if (stream_mapping[packet->stream_index] < 0) { // the packet is reference-counted...(packet); continue; } // convert the timestamps from the time base of input...of the unit second, like 1/100s, 1001/24000s, and // each stream has its own time base....The timestamps of the packets are based on the time base of // their streams, timestamps of the...+, packet->pts, packet->dts, packet->duration); packet->stream_index = stream_mapping[packet
macro 'attribute_deprecated' # define attribute_deprecated __attribute__((deprecated)) ...macro 'attribute_deprecated' # define attribute_deprecated __attribute__((deprecated)) ...== video_stream_idx) { /* decode video frame */ ret = avcodec_send_packet(video_dec_ctx...== audio_stream_idx) { /* decode audio frame */ #if 1 /* send the packet with the compressed...stream in input file '%s'\n", av_get_media_type_string(type), src_filename);
_read_txt(stream) else: if self....data = (np.random.random(size=10) * 2**32 – 2**31).astype(dtype1) for scale, offset in [(10, 0), (10., 0....offset, dtype2) assert s1.dtype == s2.dtype if dtype2.kind in ‘iu’: assert np.all(s1 == s2) else: assert...return timestamps, header_u4 else: return None Example 30 def __mmap_ncs_packet_timestamps(self, filename...= np.sum(ts * multi, axis=1) # timestamps = data[:,0] + data[:,1]*2**32 return timestamps else: return
* * Packet's @ref AVPacket.stream_index "stream_index" field must be *...* * The timestamps (@ref AVPacket.pts "pts", @ref AVPacket.dts "dts")...* must be set to correct values in the stream's timebase (unless the * output...* * Packet's @ref AVPacket.stream_index "stream_index" field must be *...* must be set to correct values in the stream's timebase (unless the * output
DEFINES += QT_DEPRECATED_WARNINGS # You can also make your code fail to compile if it uses deprecated...#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0...,用于存储解码前音频的数据 AVPacket *packet = (AVPacket *)malloc(sizeof(AVPacket)); av_init_packet(packet).../采样个数 int out_nb_samples = 1024; //采样格式 enum AVSampleFormat sample_fmt = AV_SAMPLE_FMT_S16...== audio_stream_index) { //解码声音 re = avcodec_send_packet(format_ctx
(deprecated) set schedule-multiple -- Set mode for resuming threads of all processes set scheduler-locking...-- Set whether to use deprecated gdb_index sections set variable -- Evaluate expression EXP and assign...-- Show whether to use deprecated gdb_index sections show user -- Show definitions of non-python user...program unset exec-wrapper -- Disable use of an execution wrapper unset substitute-path -- Usage: unset...substitute-path [FROM] unset tdesc -- Unset target description specific variables unset tdesc filename
libswresample" "github.com/moonfdd/ffmpeg-go/libswscale" ) /* * 音频播放命令:ffplay -ar 44100 -ac 1 -f s16le...} //用流解码信息初始化编码参数 pCodecCtx.AvcodecParametersToContext(codecpar) //没有此句会出现:Could not update timestamps...) >= 0 { if packet.StreamIndex == uint32(streamIndex) { //解码AVPacket --> AVFrame ret...:= pCodecCtx.AvcodecSendPacket(packet) if ret < 0 { fmt.Printf("Decode error\n")...} //用流解码信息初始化编码参数 pCodecCtx.AvcodecParametersToContext(codecpar) //没有此句会出现:Could not update timestamps
libswresample" "github.com/moonfdd/ffmpeg-go/libswscale" ) /* * 音频播放命令:ffplay -ar 44100 -ac 1 -f s16le...1 } //用流解码信息初始化编码参数 pCodecCtx.AvcodecParametersToContext(codecpar) //没有此句会出现:Could not update timestamps...1 } //用流解码信息初始化编码参数 pCodecCtx.AvcodecParametersToContext(codecpar) //没有此句会出现:Could not update timestamps..., outAudioFile) } if videoStreamIndex == -1 { fmt.Printf("can't find a video stream\n") } else.../lib/ffplay.exe", "-ar", "22050", "-ac", "1", "-f", "s16le", "-i", outAudioFile).Output() if err !
DEFINES += QT_DEPRECATED_WARNINGS # You can also make your code fail to compile if it uses deprecated...#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0...video_clock:"<<video_clock; //解码视频 frame //发送视频帧 if ( avcodec_send_packet...= 0) { av_packet_unref(&pkt);//不成功就释放这个pkt continue;...= 0) { av_packet_unref(&pkt);//不成功就释放这个pkt continue;
把attribute_deprecated注释掉了 推流代码 大致先了解一下结构体和结构体之间的关系 结构体关系 ?...//将AVFormat打印出来 av_dump_format(ictx, 0, inUrl, 0); //开始处理输出流 int videoIndex = 0; //0....最后,通过av_packet_unref释放AVPacket //先写头 ret = avformat_write_header(octx, 0); if (ret < 0)...//0.先取时间基数 AVRational time_base = ictx->streams[videoIndex]->time_base; //AV_TIME_BASE_Q...time_base 和 out_s的time_base进行计算和校对 //先取得stream in_stream = ictx->streams[pkt.stream_index
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