Error Avformat Alloc Context
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Typedefs | Enumerations | Functions avformat.h File Referencelibavformat Main libavformat public API header. More... #include <time.h> #include
Ffmpeg/avformat.h - Not Found
"libavutil/log.h" #include "avio.h" #include "libavformat/version.h"
Avformat_alloc_output_context2 Example
Go to the source code of this file. Data Structures struct AVProbeData This structure contains the data a format
Avformat Dll Download
has to probe a file. More... struct AVOutputFormat struct AVInputFormat struct AVIndexEntry struct AVStream Stream structure. More... struct AVProgram New fields can be added to the end with minor version bumps. More... avseek_flag_backward struct AVChapter struct AVFormatContext Format I/O context. More... struct AVPacketList Macros #defineAVPROBE_SCORE_RETRY(AVPROBE_SCORE_MAX/4) #defineAVPROBE_SCORE_STREAM_RETRY(AVPROBE_SCORE_MAX/4-1) #defineAVPROBE_SCORE_EXTENSION50 score for file extension More... #defineAVPROBE_SCORE_MIME75 score for file mime type More... #defineAVPROBE_SCORE_MAX100 maximum score More... #defineAVPROBE_PADDING_SIZE32 extra allocated bytes at the end of the probe buffer More... #defineAVFMT_NOFILE0x0001 Demuxer will use avio_open, no opened file should be provided by the caller. More... #defineAVFMT_NEEDNUMBER0x0002 Needs 'd' in filename. More... #defineAVFMT_SHOW_IDS0x0008 Show format stream IDs numbers. More... #defineAVFMT_GLOBALHEADER0x0040 Format wants global header. More... #defineAVFMT_NOTIMESTAMPS0x0080 Format does not need / have any timestamps. More... #defineAVFMT_GENERIC_INDEX0x0100 Use generic index building code. More... #defineAVFMT_TS_DISCONT0x0200 Format allows timestamp discontinuitie
Sign in Pricing Blog Support Search GitHub This repository Watch 622 Star 5,210 Fork 2,786 FFmpeg/FFmpeg Code Pull requests avformat_alloc_output_context2 mp4 14 Projects 0 Pulse Graphs Permalink Branch: master Switch branches/tags Branches avio_open Tags master oldabi release/0.5 release/0.6 release/0.7 release/0.8 release/0.9 release/0.10 release/0.11 release/1.0 release/1.1 release/1.2 release/2.0 release/2.1 release/2.2 release/2.3 av_register_all release/2.4 release/2.5 release/2.6 release/2.7 release/2.8 release/3.0 release/3.1 Nothing to show v0.6.1 v0.6 v0.5.3 v0.5.2 v0.5.1 v0.5 n3.2-dev n3.1.4 n3.1.3 n3.1.2 n3.1.1 n3.1 n3.1-dev n3.0.3 n3.0.2 n3.0.1 n3.0 http://ffmpeg.org/doxygen/trunk/avformat_8h.html n2.9-dev n2.8.8 n2.8.7 n2.8.6 n2.8.5 n2.8.4 n2.8.3 n2.8.2 n2.8.1 n2.8 n2.8-dev n2.7.7 n2.7.6 n2.7.5 n2.7.4 n2.7.3 n2.7.2 n2.7.1 n2.7 n2.7-dev n2.6.9 n2.6.8 n2.6.7 n2.6.6 n2.6.5 n2.6.4 n2.6.3 n2.6.2 n2.6.1 n2.6 n2.6-dev n2.5.11 n2.5.10 n2.5.9 n2.5.8 n2.5.7 n2.5.6 n2.5.5 n2.5.4 n2.5.3 n2.5.2 n2.5.1 n2.5 n2.5-dev n2.4.13 n2.4.12 n2.4.11 n2.4.10 n2.4.9 n2.4.8 n2.4.7 n2.4.6 n2.4.5 n2.4.4 n2.4.3 https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/avformat.h n2.4.2 n2.4.1 n2.4 n2.4-dev n2.3.6 n2.3.5 n2.3.4 n2.3.3 n2.3.2 n2.3.1 n2.3 n2.3-dev n2.2.16 n2.2.15 n2.2.14 n2.2.13 n2.2.12 n2.2.11 n2.2.10 n2.2.9 n2.2.8 n2.2.7 n2.2.6 n2.2.5 n2.2.4 n2.2.3 n2.2.2 n2.2.1 Nothing to show Find file Copy path FFmpeg/libavformat/avformat.h f0b6f72 Sep 27, 2016 jamrial avformat: add av_stream_get_codec_timebase() 130 contributors and others Users who have contributed to this file michaelni elenril aurelj DonDiego mstorsjo rdoeffinger mansr bcoudurier lu-zero multimediamike ramiropolla dwbuiten anssih jamrial cehoyos wm4 rbultje rouseabout rvs justinruggles aconverse Nevcairiel j0sh saste rcombs axic jzern lukaszmluki ubitux llogan anshul1912 kierank kodabb richardpl mmuman merbanan cus eugenis Flameeyes gfto neilbrown jmenon microe ivop axmhari mszczepanczyk stima mbouron Cigaes bjornax frothga mmaker nxtreaming kenan-gillet naufal elupus omega-photonics pdkelly dbyron0 cyxx lumimies paulegan piratfm blackspike bartek-w funman yuvi nazodane zhentanfeng shuehner TimothyGu thatguystone andoma Tjoppen vidarino aballier Raw Blame History 2936 lines (2653 sloc) 111 KB /* * copyright (c) 2001 Fabrice Bellard * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistr
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this http://stackoverflow.com/questions/19679833/muxing-avpackets-into-mp4-file site About Us Learn more about Stack Overflow the company Business Learn http://dranger.com/ffmpeg/tutorial01.html more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Muxing not found AVPackets into mp4 file up vote 2 down vote favorite 3 I am developing a tool which receives a h.264 live stream from the network (the sender is a hardware encoder), buffers the last x-minutes and creates a video file of the last x-minutes if triggered. My tool is able to receive the live stream and also to buffer AVPackets the with boost::serialization. Furthermore error avformat alloc I am able to load the buffered AVPackets. But when I try to create/mux a video file (mp4) with the loaded AVPackets there occurs an error in the mp4-file or mp4-header. I am able to create a mp4-file and also to write Packets to the file with av_interleaved_write_frame(). The mp4-file has also a plausible size. So it seams that the AVPackets were written to the file. But when I try to open the mp4-file with a player like vlc, the video doesn't play. The player provides an error like: the header isn't correct and doesn't play any frame. But I write the header with the writeHeader() function to the AVFormatContext. I guess that the reason is that the AVFormatContext isn't correctly initialized but with the example of ffmpeg/libav (muxing-examples) I can't solve the problem. Has any one a solution (example code) or an other example how to correctly initialize the AVFormatContext? Thanks for your help. Olgen avcodec_init(); avcodec_register_all(); av_register_all(); av_log_set_level(AV_LOG_DEBUG); char *outputFilename = "/tmp/output.mp4"; // define AVOutputFormat AVOutputFormat *outputFormat = NULL; outputFormat = av_guess_format("mp4", NULL, NULL); if (!outputFormat) { fprintf(stderr, "Could not find suitable output format\n"); return 1; } //
of container determines where the information in the file goes. Examples of containers are AVI and Quicktime. Next, you have a bunch of streams; for example, you usually have an audio stream and a video stream. (A "stream" is just a fancy word for "a succession of data elements made available over time".) The data elements in a stream are called frames. Each stream is encoded by a different kind of codec. The codec defines how the actual data is COded and DECoded - hence the name CODEC. Examples of codecs are DivX and MP3. Packets are then read from the stream. Packets are pieces of data that can contain bits of data that are decoded into raw frames that we can finally manipulate for our application. For our purposes, each packet contains complete frames, or multiple frames in the case of audio. At its very basic level, dealing with video and audio streams is very easy: 10 OPEN video_stream FROM video.avi 20 READ packet FROM video_stream INTO frame 30 IF frame NOT COMPLETE GOTO 20 40 DO SOMETHING WITH frame 50 GOTO 20 Handling multimedia with ffmpeg is pretty much as simple as this program, although some programs might have a very complex "DO SOMETHING" step. So in this tutorial, we're going to open a file, read from the video stream inside it, and our DO SOMETHING is going to be writing the frame to a PPM file. Opening the File First, let's see how we open a file in the first place. With ffmpeg, you have to first initialize the library. #include