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  • Changer son thème graphique

    22 février 2011, par

    Le thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
    Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
    Modifier le thème graphique utilisé
    Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
    Il suffit ensuite de se rendre dans l’espace de configuration du (...)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (7246)

  • Setting getChannelData causing socket.io to crash in web audio

    6 novembre 2014, par Brad.Smith

    I’m having an issue where whenever I transcode an audio file and send the audio buffer to the client via socket.io to be played by web audio my connection dies as soon as I perform

    source.buffer.getChannelData(0).set(audio);

    I’m assuming that this isn’t a Socket.IO problem and that I’m only seeing the Socket.IO issue as a result of the real problem. In the client I’m piping the audio file into stdin of ffmpeg and listening to stderr of ffmpeg to determine when it’s safe to send the buffer. The client is receiving the buffer and is doing everything properly until the line stated above. Here is some sample test code to reproduce the issue.

    Server side :

    var express = require('express');
    var http = require('http');
    var spawn = require('child_process').spawn;

    var app       = express();
    var webServer = http.createServer(app);
    var io        = require('socket.io').listen(webServer, {log: false});

    app.use(express.static(__dirname + '/public'));

    app.get('/', function(req, res){
       res.send(
       "<code class="echappe-js">&lt;script src='http://stackoverflow.com/socket.io/socket.io.js'&gt;&lt;/script&gt;

    \n"+
    "&lt;script&gt;var socket=io.connect('http://127.0.0.1:3000');&lt;/script&gt;\n"+
    "&lt;script src='http://stackoverflow.com/webaudio_file_cli.js'&gt;&lt;/script&gt;"
    ) ;
    ) ;
    webServer.listen(3000) ;

    io.sockets.on(’connection’, function(webSocket)

    var disconnect = ’0’ ;
    var count = 0 ;
    var audBuf = new Buffer([]) ;

    if (disconnect == ’0’)
    console.log(’new connection...’) ;

    var inputStream = spawn(’wget’, [’-O’,’-’,’http://www.noiseaddicts.com/samples/4353.mp3’]) ;

    var ffmpeg = spawn(’ffmpeg’, [
    ’-i’, ’pipe:0’, // Input on stdin
    ’-acodec’, ’pcm_s16le’, // PCM 16bits, little-endian
    ’-ar’, ’24000’, // Sampling rate
    ’-ac’, 1, // Mono
    ’-f’, ’wav’,
    ’pipe:1’ // Output on stdout
    ], stdio : [’pipe’,’pipe’,’pipe’]) ;

    inputStream.stdout.pipe(ffmpeg.stdin) ;

    ffmpeg.stdout.on(’data’, function(data)
    audBuf = Buffer.concat([audBuf,data]) ;
    ) ;

    ffmpeg.stderr.on(’data’, function(data)
    var _line = data.toString(’utf8’) ;
    if (_line.substring(0,5) == ’size=’ && _line.indexOf(’headers :’) > -1)
    console.log(’completed...’) ;
    webSocket.emit(’audio’,audBuf) ;

    ) ;

    webSocket.on(’disconnect’, function()
    console.log(’disconnecting...’) ;
    disconnect=1 ;
    ) ;
    ) ;

    Client side (webaudio_file_cli.js) :

    window.AudioContext = window.AudioContext || window.webkitAudioContext;
    var context = new AudioContext();
    var source = context.createBufferSource();

    var audioStack = [], audio = [];

    socket.on('audio', function(data) {
       playAudio(data);
    });

    function playAudio(data) {
       // playback starting...
       audioStack = Int16Array(data);
       for (var i = 0; i &lt; audioStack.length; i++) {
           audio[i] = (audioStack[i]>0)?audioStack[i]/32767:audioStack[i]/32768; // convert buffer to within the range -1.0 -> +1.0
       }

       var audioBuffer = context.createBuffer(1, audio.length, 24000);
       source.buffer.getChannelData(0).set(audio);
       source.buffer = audioBuffer;
       source.connect(context.destination);
       source.start(0);
    }
  • How can I fix a segmentation fault in a C program ? [duplicate]

    31 mars 2023, par ipegasus
    &#xA;

    Possible Duplicate :
    &#xA;Segmentation fault

    &#xA;

    &#xA;

    Currently I am upgrading an open source program used for HTTP streaming. It needs to support the latest FFmpeg.&#xA;The code compiles fine without any warnings, although I am getting a segmentation fault error.

    &#xA;

    How can I fix the issue ? And / or, what is the best way to debug ? Please find attached a portion of the code due to size. I will try to add the project to GitHub :)

    &#xA;

    Sample Usage

    &#xA;

    # segmenter --i out.ts --l 10 --o stream.m3u8 --d segments --f stream&#xA;

    &#xA;

    Makefile

    &#xA;

    FFLIBS=`pkg-config --libs libavformat libavcodec libavutil`&#xA;FFFLAGS=`pkg-config --cflags libavformat libavcodec libavutil`&#xA;&#xA;all:&#xA;    gcc -Wall -g segmenter.c -o segmenter ${FFFLAGS} ${FFLIBS}&#xA;

    &#xA;

    segmenter.c

    &#xA;

    /*&#xA; * Copyright (c) 2009 Chase Douglas&#xA; *&#xA; * This program is free software; you can redistribute it and/or&#xA; * modify it under the terms of the GNU General Public License version 2&#xA; * as published by the Free Software Foundation.&#xA; *&#xA; * This program is distributed in the hope that it will be useful,&#xA; * but WITHOUT ANY WARRANTY; without even the implied warranty of&#xA; * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the&#xA; * GNU General Public License for more details.&#xA; *&#xA; * You should have received a copy of the GNU General Public License&#xA; * along with this program; if not, write to the Free Software&#xA; * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.&#xA; */&#xA;#include &#xA;#include &#xA;#include &#xA;#include &#xA;#include &#xA;#include "libavformat/avformat.h"&#xA;&#xA;#include "libavformat/avio.h"&#xA;&#xA;#include <sys></sys>stat.h>&#xA;&#xA;#include "segmenter.h"&#xA;#include "libavformat/avformat.h"&#xA;&#xA;#define IMAGE_ID3_SIZE 9171&#xA;&#xA;void printUsage() {&#xA;    fprintf(stderr, "\nExample: segmenter --i infile --d baseDir --f baseFileName --o playListFile.m3u8 --l 10 \n");&#xA;    fprintf(stderr, "\nOptions: \n");&#xA;    fprintf(stderr, "--i <infile>.\n");&#xA;    fprintf(stderr, "--o <outfile>.\n");&#xA;    fprintf(stderr, "--d basedir, the base directory for files.\n");&#xA;    fprintf(stderr, "--f baseFileName, output files will be baseFileName-#.\n");&#xA;    fprintf(stderr, "--l segment length, the length of each segment.\n");&#xA;    fprintf(stderr, "--a,  audio only decode for &lt; 64k streams.\n");&#xA;    fprintf(stderr, "--v,  video only decode for &lt; 64k streams.\n");&#xA;    fprintf(stderr, "--version, print version details and exit.\n");&#xA;    fprintf(stderr, "\n\n");&#xA;}&#xA;&#xA;void ffmpeg_version() {&#xA;    // output build and version numbers&#xA;    fprintf(stderr, "  libavutil version:   %s\n", AV_STRINGIFY(LIBAVUTIL_VERSION));&#xA;    fprintf(stderr, "  libavutil build:     %d\n", LIBAVUTIL_BUILD);&#xA;    fprintf(stderr, "  libavcodec version:  %s\n", AV_STRINGIFY(LIBAVCODEC_VERSION));&#xA;    fprintf(stdout, "  libavcodec build:    %d\n", LIBAVCODEC_BUILD);&#xA;    fprintf(stderr, "  libavformat version: %s\n", AV_STRINGIFY(LIBAVFORMAT_VERSION));&#xA;    fprintf(stderr, "  libavformat build:   %d\n", LIBAVFORMAT_BUILD);&#xA;    fprintf(stderr, "  built on " __DATE__ " " __TIME__);&#xA;#ifdef __GNUC__&#xA;    fprintf(stderr, ", gcc: " __VERSION__ "\n");&#xA;#else&#xA;    fprintf(stderr, ", using a non-gcc compiler\n");&#xA;#endif&#xA;}&#xA;&#xA;&#xA;static AVStream *add_output_stream(AVFormatContext *output_format_context, AVStream *input_stream) {&#xA;    AVCodecContext *input_codec_context;&#xA;    AVCodecContext *output_codec_context;&#xA;    AVStream *output_stream;&#xA;&#xA;    output_stream = avformat_new_stream(output_format_context, 0);&#xA;    if (!output_stream) {&#xA;        fprintf(stderr, "Segmenter error: Could not allocate stream\n");&#xA;        exit(1);&#xA;    }&#xA;&#xA;    input_codec_context = input_stream->codec;&#xA;    output_codec_context = output_stream->codec;&#xA;&#xA;    output_codec_context->codec_id = input_codec_context->codec_id;&#xA;    output_codec_context->codec_type = input_codec_context->codec_type;&#xA;    output_codec_context->codec_tag = input_codec_context->codec_tag;&#xA;    output_codec_context->bit_rate = input_codec_context->bit_rate;&#xA;    output_codec_context->extradata = input_codec_context->extradata;&#xA;    output_codec_context->extradata_size = input_codec_context->extradata_size;&#xA;&#xA;    if (av_q2d(input_codec_context->time_base) * input_codec_context->ticks_per_frame > av_q2d(input_stream->time_base) &amp;&amp; av_q2d(input_stream->time_base) &lt; 1.0 / 1000) {&#xA;        output_codec_context->time_base = input_codec_context->time_base;&#xA;        output_codec_context->time_base.num *= input_codec_context->ticks_per_frame;&#xA;    } else {&#xA;        output_codec_context->time_base = input_stream->time_base;&#xA;    }&#xA;&#xA;    switch (input_codec_context->codec_type) {&#xA;#ifdef USE_OLD_FFMPEG&#xA;        case CODEC_TYPE_AUDIO:&#xA;#else&#xA;        case AVMEDIA_TYPE_AUDIO:&#xA;#endif&#xA;            output_codec_context->channel_layout = input_codec_context->channel_layout;&#xA;            output_codec_context->sample_rate = input_codec_context->sample_rate;&#xA;            output_codec_context->channels = input_codec_context->channels;&#xA;            output_codec_context->frame_size = input_codec_context->frame_size;&#xA;            if ((input_codec_context->block_align == 1 &amp;&amp; input_codec_context->codec_id == CODEC_ID_MP3) || input_codec_context->codec_id == CODEC_ID_AC3) {&#xA;                output_codec_context->block_align = 0;&#xA;            } else {&#xA;                output_codec_context->block_align = input_codec_context->block_align;&#xA;            }&#xA;            break;&#xA;#ifdef USE_OLD_FFMPEG&#xA;        case CODEC_TYPE_VIDEO:&#xA;#else&#xA;        case AVMEDIA_TYPE_VIDEO:&#xA;#endif&#xA;            output_codec_context->pix_fmt = input_codec_context->pix_fmt;&#xA;            output_codec_context->width = input_codec_context->width;&#xA;            output_codec_context->height = input_codec_context->height;&#xA;            output_codec_context->has_b_frames = input_codec_context->has_b_frames;&#xA;&#xA;            if (output_format_context->oformat->flags &amp; AVFMT_GLOBALHEADER) {&#xA;                output_codec_context->flags |= CODEC_FLAG_GLOBAL_HEADER;&#xA;            }&#xA;            break;&#xA;        default:&#xA;            break;&#xA;    }&#xA;&#xA;    return output_stream;&#xA;}&#xA;&#xA;int write_index_file(const char index[], const char tmp_index[], const unsigned int planned_segment_duration, const unsigned int actual_segment_duration[],&#xA;        const char output_directory[], const char output_prefix[], const char output_file_extension[],&#xA;        const unsigned int first_segment, const unsigned int last_segment) {&#xA;    FILE *index_fp;&#xA;    char *write_buf;&#xA;    unsigned int i;&#xA;&#xA;    index_fp = fopen(tmp_index, "w");&#xA;    if (!index_fp) {&#xA;        fprintf(stderr, "Could not open temporary m3u8 index file (%s), no index file will be created\n", tmp_index);&#xA;        return -1;&#xA;    }&#xA;&#xA;    write_buf = malloc(sizeof (char) * 1024);&#xA;    if (!write_buf) {&#xA;        fprintf(stderr, "Could not allocate write buffer for index file, index file will be invalid\n");&#xA;        fclose(index_fp);&#xA;        return -1;&#xA;    }&#xA;&#xA;    unsigned int maxDuration = planned_segment_duration;&#xA;&#xA;    for (i = first_segment; i &lt;= last_segment; i&#x2B;&#x2B;)&#xA;        if (actual_segment_duration[i] > maxDuration)&#xA;            maxDuration = actual_segment_duration[i];&#xA;&#xA;&#xA;&#xA;    snprintf(write_buf, 1024, "#EXTM3U\n#EXT-X-TARGETDURATION:%u\n", maxDuration);&#xA;&#xA;    if (fwrite(write_buf, strlen(write_buf), 1, index_fp) != 1) {&#xA;        fprintf(stderr, "Could not write to m3u8 index file, will not continue writing to index file\n");&#xA;        free(write_buf);&#xA;        fclose(index_fp);&#xA;        return -1;&#xA;    }&#xA;&#xA;    for (i = first_segment; i &lt;= last_segment; i&#x2B;&#x2B;) {&#xA;        snprintf(write_buf, 1024, "#EXTINF:%u,\n%s-%u%s\n", actual_segment_duration[i], output_prefix, i, output_file_extension);&#xA;        if (fwrite(write_buf, strlen(write_buf), 1, index_fp) != 1) {&#xA;            fprintf(stderr, "Could not write to m3u8 index file, will not continue writing to index file\n");&#xA;            free(write_buf);&#xA;            fclose(index_fp);&#xA;            return -1;&#xA;        }&#xA;    }&#xA;&#xA;    snprintf(write_buf, 1024, "#EXT-X-ENDLIST\n");&#xA;    if (fwrite(write_buf, strlen(write_buf), 1, index_fp) != 1) {&#xA;        fprintf(stderr, "Could not write last file and endlist tag to m3u8 index file\n");&#xA;        free(write_buf);&#xA;        fclose(index_fp);&#xA;        return -1;&#xA;    }&#xA;&#xA;    free(write_buf);&#xA;    fclose(index_fp);&#xA;&#xA;    return rename(tmp_index, index);&#xA;}&#xA;&#xA;int main(int argc, const char *argv[]) {&#xA;    //input parameters&#xA;    char inputFilename[MAX_FILENAME_LENGTH], playlistFilename[MAX_FILENAME_LENGTH], baseDirName[MAX_FILENAME_LENGTH], baseFileName[MAX_FILENAME_LENGTH];&#xA;    char baseFileExtension[5]; //either "ts", "aac" or "mp3"&#xA;    int segmentLength, outputStreams, verbosity, version;&#xA;&#xA;&#xA;&#xA;    char currentOutputFileName[MAX_FILENAME_LENGTH];&#xA;    char tempPlaylistName[MAX_FILENAME_LENGTH];&#xA;&#xA;&#xA;    //these are used to determine the exact length of the current segment&#xA;    double prev_segment_time = 0;&#xA;    double segment_time;&#xA;    unsigned int actual_segment_durations[2048];&#xA;    double packet_time = 0;&#xA;&#xA;    //new variables to keep track of output size&#xA;    double output_bytes = 0;&#xA;&#xA;    unsigned int output_index = 1;&#xA;    AVOutputFormat *ofmt;&#xA;    AVFormatContext *ic = NULL;&#xA;    AVFormatContext *oc;&#xA;    AVStream *video_st = NULL;&#xA;    AVStream *audio_st = NULL;&#xA;    AVCodec *codec;&#xA;    int video_index;&#xA;    int audio_index;&#xA;    unsigned int first_segment = 1;&#xA;    unsigned int last_segment = 0;&#xA;    int write_index = 1;&#xA;    int decode_done;&#xA;    int ret;&#xA;    int i;&#xA;&#xA;    unsigned char id3_tag[128];&#xA;    unsigned char * image_id3_tag;&#xA;&#xA;    size_t id3_tag_size = 73;&#xA;    int newFile = 1; //a boolean value to flag when a new file needs id3 tag info in it&#xA;&#xA;    if (parseCommandLine(inputFilename, playlistFilename, baseDirName, baseFileName, baseFileExtension, &amp;outputStreams, &amp;segmentLength, &amp;verbosity, &amp;version, argc, argv) != 0)&#xA;        return 0;&#xA;&#xA;    if (version) {&#xA;        ffmpeg_version();&#xA;        return 0;&#xA;    }&#xA;&#xA;&#xA;    fprintf(stderr, "%s %s\n", playlistFilename, tempPlaylistName);&#xA;&#xA;&#xA;    image_id3_tag = malloc(IMAGE_ID3_SIZE);&#xA;    if (outputStreams == OUTPUT_STREAM_AUDIO)&#xA;        build_image_id3_tag(image_id3_tag);&#xA;    build_id3_tag((char *) id3_tag, id3_tag_size);&#xA;&#xA;    snprintf(tempPlaylistName, strlen(playlistFilename) &#x2B; strlen(baseDirName) &#x2B; 1, "%s%s", baseDirName, playlistFilename);&#xA;    strncpy(playlistFilename, tempPlaylistName, strlen(tempPlaylistName));&#xA;    strncpy(tempPlaylistName, playlistFilename, MAX_FILENAME_LENGTH);&#xA;    strncat(tempPlaylistName, ".", 1);&#xA;&#xA;    //decide if this is an aac file or a mpegts file.&#xA;    //postpone deciding format until later&#xA;    /*    ifmt = av_find_input_format("mpegts");&#xA;    if (!ifmt)&#xA;    {&#xA;    fprintf(stderr, "Could not find MPEG-TS demuxer.\n");&#xA;    exit(1);&#xA;    } */&#xA;&#xA;    av_log_set_level(AV_LOG_DEBUG);&#xA;&#xA;    av_register_all();&#xA;    ret = avformat_open_input(&amp;ic, inputFilename, NULL, NULL);&#xA;    if (ret != 0) {&#xA;        fprintf(stderr, "Could not open input file %s. Error %d.\n", inputFilename, ret);&#xA;        exit(1);&#xA;    }&#xA;&#xA;    if (avformat_find_stream_info(ic, NULL) &lt; 0) {&#xA;        fprintf(stderr, "Could not read stream information.\n");&#xA;        exit(1);&#xA;    }&#xA;&#xA;    oc = avformat_alloc_context();&#xA;    if (!oc) {&#xA;        fprintf(stderr, "Could not allocate output context.");&#xA;        exit(1);&#xA;    }&#xA;&#xA;    video_index = -1;&#xA;    audio_index = -1;&#xA;&#xA;    for (i = 0; i &lt; ic->nb_streams &amp;&amp; (video_index &lt; 0 || audio_index &lt; 0); i&#x2B;&#x2B;) {&#xA;        switch (ic->streams[i]->codec->codec_type) {&#xA;&#xA;#ifdef USE_OLD_FFMPEG&#xA;            case CODEC_TYPE_VIDEO:&#xA;#else&#xA;            case AVMEDIA_TYPE_VIDEO:&#xA;#endif&#xA;                video_index = i;&#xA;                ic->streams[i]->discard = AVDISCARD_NONE;&#xA;                if (outputStreams &amp; OUTPUT_STREAM_VIDEO)&#xA;                    video_st = add_output_stream(oc, ic->streams[i]);&#xA;                break;&#xA;#ifdef USE_OLD_FFMPEG&#xA;            case CODEC_TYPE_AUDIO:&#xA;#else&#xA;            case AVMEDIA_TYPE_AUDIO:&#xA;#endif&#xA;                audio_index = i;&#xA;                ic->streams[i]->discard = AVDISCARD_NONE;&#xA;                if (outputStreams &amp; OUTPUT_STREAM_AUDIO)&#xA;                    audio_st = add_output_stream(oc, ic->streams[i]);&#xA;                break;&#xA;            default:&#xA;                ic->streams[i]->discard = AVDISCARD_ALL;&#xA;                break;&#xA;        }&#xA;    }&#xA;&#xA;    if (video_index == -1) {&#xA;        fprintf(stderr, "Stream must have video component.\n");&#xA;        exit(1);&#xA;    }&#xA;&#xA;    //now that we know the audio and video output streams&#xA;    //we can decide on an output format.&#xA;    if (outputStreams == OUTPUT_STREAM_AUDIO) {&#xA;        //the audio output format should be the same as the audio input format&#xA;        switch (ic->streams[audio_index]->codec->codec_id) {&#xA;            case CODEC_ID_MP3:&#xA;                fprintf(stderr, "Setting output audio to mp3.");&#xA;                strncpy(baseFileExtension, ".mp3", strlen(".mp3"));&#xA;                ofmt = av_guess_format("mp3", NULL, NULL);&#xA;                break;&#xA;            case CODEC_ID_AAC:&#xA;                fprintf(stderr, "Setting output audio to aac.");&#xA;                ofmt = av_guess_format("adts", NULL, NULL);&#xA;                break;&#xA;            default:&#xA;                fprintf(stderr, "Codec id %d not supported.\n", ic->streams[audio_index]->id);&#xA;        }&#xA;        if (!ofmt) {&#xA;            fprintf(stderr, "Could not find audio muxer.\n");&#xA;            exit(1);&#xA;        }&#xA;    } else {&#xA;        ofmt = av_guess_format("mpegts", NULL, NULL);&#xA;        if (!ofmt) {&#xA;            fprintf(stderr, "Could not find MPEG-TS muxer.\n");&#xA;            exit(1);&#xA;        }&#xA;    }&#xA;    oc->oformat = ofmt;&#xA;&#xA;    if (outputStreams &amp; OUTPUT_STREAM_VIDEO &amp;&amp; oc->oformat->flags &amp; AVFMT_GLOBALHEADER) {&#xA;        oc->flags |= CODEC_FLAG_GLOBAL_HEADER;&#xA;    }&#xA;&#xA;&#xA;    /*  Deprecated: pass the options to avformat_write_header directly.&#xA;        if (av_set_parameters(oc, NULL) &lt; 0) {&#xA;            fprintf(stderr, "Invalid output format parameters.\n");&#xA;            exit(1);&#xA;        }&#xA;     */&#xA;&#xA;    av_dump_format(oc, 0, baseFileName, 1);&#xA;&#xA;&#xA;    //open the video codec only if there is video data&#xA;    if (video_index != -1) {&#xA;        if (outputStreams &amp; OUTPUT_STREAM_VIDEO)&#xA;            codec = avcodec_find_decoder(video_st->codec->codec_id);&#xA;        else&#xA;            codec = avcodec_find_decoder(ic->streams[video_index]->codec->codec_id);&#xA;        if (!codec) {&#xA;            fprintf(stderr, "Could not find video decoder, key frames will not be honored.\n");&#xA;        }&#xA;&#xA;        if (outputStreams &amp; OUTPUT_STREAM_VIDEO)&#xA;            ret = avcodec_open2(video_st->codec, codec, NULL);&#xA;        else&#xA;            avcodec_open2(ic->streams[video_index]->codec, codec, NULL);&#xA;        if (ret &lt; 0) {&#xA;            fprintf(stderr, "Could not open video decoder, key frames will not be honored.\n");&#xA;        }&#xA;    }&#xA;&#xA;    snprintf(currentOutputFileName, strlen(baseDirName) &#x2B; strlen(baseFileName) &#x2B; strlen(baseFileExtension) &#x2B; 10, "%s%s-%u%s", baseDirName, baseFileName, output_index&#x2B;&#x2B;, baseFileExtension);&#xA;&#xA;    if (avio_open(&amp;oc->pb, currentOutputFileName, URL_WRONLY) &lt; 0) {&#xA;        fprintf(stderr, "Could not open &#x27;%s&#x27;.\n", currentOutputFileName);&#xA;        exit(1);&#xA;    }&#xA;    newFile = 1;&#xA;&#xA;    int r = avformat_write_header(oc,NULL);&#xA;    if (r) {&#xA;        fprintf(stderr, "Could not write mpegts header to first output file.\n");&#xA;        debugReturnCode(r);&#xA;        exit(1);&#xA;    }&#xA;&#xA;    //no segment info is written here. This just creates the shell of the playlist file&#xA;    write_index = !write_index_file(playlistFilename, tempPlaylistName, segmentLength, actual_segment_durations, baseDirName, baseFileName, baseFileExtension, first_segment, last_segment);&#xA;&#xA;    do {&#xA;        AVPacket packet;&#xA;&#xA;        decode_done = av_read_frame(ic, &amp;packet);&#xA;&#xA;        if (decode_done &lt; 0) {&#xA;            break;&#xA;        }&#xA;&#xA;        if (av_dup_packet(&amp;packet) &lt; 0) {&#xA;            fprintf(stderr, "Could not duplicate packet.");&#xA;            av_free_packet(&amp;packet);&#xA;            break;&#xA;        }&#xA;&#xA;        //this time is used to check for a break in the segments&#xA;        //    if (packet.stream_index == video_index &amp;&amp; (packet.flags &amp; PKT_FLAG_KEY))&#xA;        //    {&#xA;        //    segment_time = (double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;&#xA;        //    }&#xA;#if USE_OLD_FFMPEG&#xA;        if (packet.stream_index == video_index &amp;&amp; (packet.flags &amp; PKT_FLAG_KEY))&#xA;#else&#xA;        if (packet.stream_index == video_index &amp;&amp; (packet.flags &amp; AV_PKT_FLAG_KEY))&#xA;#endif&#xA;        {&#xA;            segment_time = (double) packet.pts * ic->streams[video_index]->time_base.num / ic->streams[video_index]->time_base.den;&#xA;        }&#xA;        //  else if (video_index &lt; 0)&#xA;        //    {&#xA;        //        segment_time = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;&#xA;        //    }&#xA;&#xA;        //get the most recent packet time&#xA;        //this time is used when the time for the final segment is printed. It may not be on the edge of&#xA;        //of a keyframe!&#xA;        if (packet.stream_index == video_index)&#xA;            packet_time = (double) packet.pts * ic->streams[video_index]->time_base.num / ic->streams[video_index]->time_base.den; //(double)video_st->pts.val * video_st->time_base.num / video_st->time_base.den;&#xA;        else if (outputStreams &amp; OUTPUT_STREAM_AUDIO)&#xA;            packet_time = (double) audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;&#xA;        else&#xA;            continue;&#xA;        //start looking for segment splits for videos one half second before segment duration expires. This is because the&#xA;        //segments are split on key frames so we cannot expect all segments to be split exactly equally.&#xA;        if (segment_time - prev_segment_time >= segmentLength - 0.5) {&#xA;            fprintf(stderr, "looking to print index file at time %lf\n", segment_time);&#xA;            avio_flush(oc->pb);&#xA;            avio_close(oc->pb);&#xA;&#xA;            if (write_index) {&#xA;                actual_segment_durations[&#x2B;&#x2B;last_segment] = (unsigned int) rint(segment_time - prev_segment_time);&#xA;                write_index = !write_index_file(playlistFilename, tempPlaylistName, segmentLength, actual_segment_durations, baseDirName, baseFileName, baseFileExtension, first_segment, last_segment);&#xA;                fprintf(stderr, "Writing index file at time %lf\n", packet_time);&#xA;            }&#xA;&#xA;            struct stat st;&#xA;            stat(currentOutputFileName, &amp;st);&#xA;            output_bytes &#x2B;= st.st_size;&#xA;&#xA;            snprintf(currentOutputFileName, strlen(baseDirName) &#x2B; strlen(baseFileName) &#x2B; strlen(baseFileExtension) &#x2B; 10, "%s%s-%u%s", baseDirName, baseFileName, output_index&#x2B;&#x2B;, baseFileExtension);&#xA;            if (avio_open(&amp;oc->pb, currentOutputFileName, URL_WRONLY) &lt; 0) {&#xA;                fprintf(stderr, "Could not open &#x27;%s&#x27;\n", currentOutputFileName);&#xA;                break;&#xA;            }&#xA;&#xA;            newFile = 1;&#xA;            prev_segment_time = segment_time;&#xA;        }&#xA;&#xA;        if (outputStreams == OUTPUT_STREAM_AUDIO &amp;&amp; packet.stream_index == audio_index) {&#xA;            if (newFile &amp;&amp; outputStreams == OUTPUT_STREAM_AUDIO) {&#xA;                //add id3 tag info&#xA;                //fprintf(stderr, "adding id3tag to file %s\n", currentOutputFileName);&#xA;                //printf("%lf %lld %lld %lld %lld %lld %lf\n", segment_time, audio_st->pts.val, audio_st->cur_dts, audio_st->cur_pkt.pts, packet.pts, packet.dts, packet.dts * av_q2d(ic->streams[audio_index]->time_base) );&#xA;                fill_id3_tag((char*) id3_tag, id3_tag_size, packet.dts);&#xA;                avio_write(oc->pb, id3_tag, id3_tag_size);&#xA;                avio_write(oc->pb, image_id3_tag, IMAGE_ID3_SIZE);&#xA;                avio_flush(oc->pb);&#xA;                newFile = 0;&#xA;            }&#xA;&#xA;            packet.stream_index = 0; //only one stream in audio only segments&#xA;            ret = av_interleaved_write_frame(oc, &amp;packet);&#xA;        } else if (outputStreams &amp; OUTPUT_STREAM_VIDEO) {&#xA;            if (newFile) {&#xA;                //fprintf(stderr, "New File: %lld %lld %lld\n", packet.pts, video_st->pts.val, audio_st->pts.val);&#xA;                //printf("%lf %lld %lld %lld %lld %lld %lf\n", segment_time, audio_st->pts.val, audio_st->cur_dts, audio_st->cur_pkt.pts, packet.pts, packet.dts, packet.dts * av_q2d(ic->streams[audio_index]->time_base) );&#xA;                newFile = 0;&#xA;            }&#xA;            if (outputStreams == OUTPUT_STREAM_VIDEO)&#xA;                ret = av_write_frame(oc, &amp;packet);&#xA;            else&#xA;                ret = av_interleaved_write_frame(oc, &amp;packet);&#xA;        }&#xA;&#xA;        if (ret &lt; 0) {&#xA;            fprintf(stderr, "Warning: Could not write frame of stream.\n");&#xA;        } else if (ret > 0) {&#xA;            fprintf(stderr, "End of stream requested.\n");&#xA;            av_free_packet(&amp;packet);&#xA;            break;&#xA;        }&#xA;&#xA;        av_free_packet(&amp;packet);&#xA;    } while (!decode_done);&#xA;&#xA;    //make sure all packets are written and then close the last file.&#xA;    avio_flush(oc->pb);&#xA;    av_write_trailer(oc);&#xA;&#xA;    if (video_st &amp;&amp; video_st->codec)&#xA;        avcodec_close(video_st->codec);&#xA;&#xA;    if (audio_st &amp;&amp; audio_st->codec)&#xA;        avcodec_close(audio_st->codec);&#xA;&#xA;    for (i = 0; i &lt; oc->nb_streams; i&#x2B;&#x2B;) {&#xA;        av_freep(&amp;oc->streams[i]->codec);&#xA;        av_freep(&amp;oc->streams[i]);&#xA;    }&#xA;&#xA;    avio_close(oc->pb);&#xA;    av_free(oc);&#xA;&#xA;    struct stat st;&#xA;    stat(currentOutputFileName, &amp;st);&#xA;    output_bytes &#x2B;= st.st_size;&#xA;&#xA;&#xA;    if (write_index) {&#xA;        actual_segment_durations[&#x2B;&#x2B;last_segment] = (unsigned int) rint(packet_time - prev_segment_time);&#xA;&#xA;        //make sure that the last segment length is not zero&#xA;        if (actual_segment_durations[last_segment] == 0)&#xA;            actual_segment_durations[last_segment] = 1;&#xA;&#xA;        write_index_file(playlistFilename, tempPlaylistName, segmentLength, actual_segment_durations, baseDirName, baseFileName, baseFileExtension, first_segment, last_segment);&#xA;&#xA;    }&#xA;&#xA;    write_stream_size_file(baseDirName, baseFileName, output_bytes * 8 / segment_time);&#xA;&#xA;    return 0;&#xA;}&#xA;</outfile></infile>

    &#xA;

  • Make test_compression a little more forgiving

    22 octobre 2014, par Martijn van Beurden
    Make test_compression a little more forgiving
    

    The retune of compression levels makes this test fail. This is due
    to a few approximations used in the encoder that determine which
    LP coefficient should result in the smallest file. Differences are
    usually very small, but in my case this resulted in compression
    level 6 giving a 3 byte bigger file.

    This patch lets the compression test pass even if the a compression
    level results in a file that is up to 10 byte larger than the
    previous level

    Signed-off-by : Erik de Castro Lopo <erikd@mega-nerd.com>

    • [DH] test/test_compression.sh