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Valkaama DVD Cover Outside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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Valkaama DVD Label
4 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Image
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Valkaama DVD Cover Inside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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1,000,000
27 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Demon Seed
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Four of Us are Dying
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
Autres articles (44)
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Sur d’autres sites (6501)
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video overwriting using ffmpeg - I want to Add video rotation code and rewrite the existing file..How can i do that ?
27 octobre 2013, par Lakshmi Priya.KI want to rotate the .mov file which is in portrait mode by 90 degrees, for that i used the following code..
It works but, it results in loss of video frames...My code is,
public void encode(File source, File target, EncodingAttributes attributes,
EncoderProgressListener listener, Integer i) throws IllegalArgumentException,
InputFormatException, EncoderException {
String formatAttribute = attributes.getFormat();
Float offsetAttribute = attributes.getOffset();
Float durationAttribute = attributes.getDuration();
QualityScale qualityScale = attributes.getQualityScale();
AudioAttributes audioAttributes = attributes.getAudioAttributes();
VideoAttributes videoAttributes = attributes.getVideoAttributes();
if (audioAttributes == null && videoAttributes == null) {
throw new IllegalArgumentException(
"Both audio and video attributes are null");
}
target = target.getAbsoluteFile();
target.getParentFile().mkdirs();
FFMPEGExecutor ffmpeg = locator.createExecutor();
if (offsetAttribute != null) {
ffmpeg.addArgument("-ss");
ffmpeg.addArgument(String.valueOf(offsetAttribute.floatValue()));
}
ffmpeg.addArgument("-i");
ffmpeg.addArgument(source.getAbsolutePath());
if (durationAttribute != null) {
ffmpeg.addArgument("-t");
ffmpeg.addArgument(String.valueOf(durationAttribute.floatValue()));
}
if (qualityScale != null) {
ffmpeg.addArgument("-qscale:"+qualityScale.getQualityStreamSpecifier());
ffmpeg.addArgument(String.valueOf(qualityScale.getQualityValue()));
}
if (videoAttributes == null) {
ffmpeg.addArgument("-vn");
} else {
String codec = videoAttributes.getCodec();
if (codec != null) {
ffmpeg.addArgument("-vcodec");
ffmpeg.addArgument(codec);
}
String tag = videoAttributes.getTag();
if (tag != null) {
ffmpeg.addArgument("-vtag");
ffmpeg.addArgument(tag);
}
Integer bitRate = videoAttributes.getBitRate();
if (bitRate != null) {
ffmpeg.addArgument("-b");
ffmpeg.addArgument(String.valueOf(bitRate.intValue()));
}
Integer frameRate = videoAttributes.getFrameRate();
if (frameRate != null) {
ffmpeg.addArgument("-r");
ffmpeg.addArgument(String.valueOf(frameRate.intValue()));
}
VideoSize size = videoAttributes.getSize();
if (size != null) {
ffmpeg.addArgument("-s");
ffmpeg.addArgument(String.valueOf(size.getWidth()) + "x"
+ String.valueOf(size.getHeight()));
}
FilterGraph filterGraph = videoAttributes.getFilterGraph();
if (filterGraph != null) {
ffmpeg.addArgument("-vf");
if(videoAttributes.getRotate() != null && videoAttributes.getRotate() == 90){
ffmpeg.addArgument("transpose=1");
}else if(videoAttributes.getRotate() != null && videoAttributes.getRotate() == 180){
ffmpeg.addArgument("vflip,hflip");
}
else {
if (filterGraph.isUseExpression()) {
ffmpeg.addArgument(filterGraph.getFilterGraphExpression());
}
}
}
}
if (audioAttributes == null) {
ffmpeg.addArgument("-an");
} else {
String codec = audioAttributes.getCodec();
if (codec != null) {
ffmpeg.addArgument("-acodec");
ffmpeg.addArgument(codec);
}
Integer bitRate = audioAttributes.getBitRate();
if (bitRate != null) {
ffmpeg.addArgument("-ab");
ffmpeg.addArgument(String.valueOf(bitRate.intValue()));
}
Integer channels = audioAttributes.getChannels();
if (channels != null) {
ffmpeg.addArgument("-ac");
ffmpeg.addArgument(String.valueOf(channels.intValue()));
}
Integer samplingRate = audioAttributes.getSamplingRate();
if (samplingRate != null) {
ffmpeg.addArgument("-ar");
ffmpeg.addArgument(String.valueOf(samplingRate.intValue()));
}
Integer volume = audioAttributes.getVolume();
if (volume != null) {
ffmpeg.addArgument("-vol");
ffmpeg.addArgument(String.valueOf(volume.intValue()));
}
}
ffmpeg.addArgument("-f");
ffmpeg.addArgument(formatAttribute);
ffmpeg.addArgument("-y");
ffmpeg.addArgument(target.getAbsolutePath());
try {
ffmpeg.execute();
} catch (IOException e) {
throw new EncoderException(e);
}
try {
String lastWarning = null;
long duration;
long progress = 0;
RBufferedReader reader = null;
reader = new RBufferedReader(new InputStreamReader(ffmpeg
.getErrorStream()));
MultimediaInfo info = parseMultimediaInfo(source, reader);
if (durationAttribute != null) {
duration = (long) Math
.round((durationAttribute.floatValue() * 1000L));
} else {
duration = info.getDuration();
if (offsetAttribute != null) {
duration -= (long) Math
.round((offsetAttribute.floatValue() * 1000L));
}
}
if (listener != null) {
listener.sourceInfo(info);
}
int step = 0;
String line;
while ((line = reader.readLine()) != null) {
System.out.println("line::::"+line);
if (step == 0) {
if (line.startsWith("WARNING: ")) {
if (listener != null) {
listener.message(line);
}
} else if (!line.startsWith("Output #0")) {
//throw new EncoderException(line);
} else {
step++;
}
} else if (step == 1) {
if (!line.startsWith(" ")) {
step++;
} else {
System.out.println("line>>>>>>"+line);
Hashtable table1 = new Hashtable();
Matcher m = ROTATE_INFO_PATTERN.matcher(line);
while (m.find()) {
if (table1 == null) {
table1 = new Hashtable();
}
String key = m.group(1);
String value = m.group(2);
table1.put(key, value);
}
System.out.println("Table values"+table1.get("rotate"));
if(table1.get("rotate") != null){
Object videoRotateValue = table1.get("rotate");
int rotate = Integer.valueOf(videoRotateValue.toString());
switch(rotate){
case 90:
videoAttributes.setRotate(rotate);
if(i == 0){
i++;
encode(source, target, attributes, null, i);
}
break;
case 180:
videoAttributes.setRotate(rotate);
if(i == 0){
i++;
encode(source, target, attributes, null, i);
}
break;
case 270: System.out.println("case 3 :: "+videoRotateValue);
break;
}
}
}
}
if (step == 2) {
if (!line.startsWith("Stream mapping:")) {
throw new EncoderException(line);
} else {
step++;
}
} else if (step == 3) {
if (!line.startsWith(" ")) {
step++;
}
}
if (step == 4) {
line = line.trim();
if (line.length() > 0) {
Hashtable table = parseProgressInfoLine(line);
if (table == null) {
if (listener != null) {
listener.message(line);
}
lastWarning = line;
} else {
if (listener != null) {
String time = (String) table.get("time");
if (time != null) {
int dot = time.indexOf('.');
if (dot > 0 && dot == time.length() - 2
&& duration > 0) {
String p1 = time.substring(0, dot);
String p2 = time.substring(dot + 1);
try {
long i1 = Long.parseLong(p1);
long i2 = Long.parseLong(p2);
progress = (i1 * 1000L)
+ (i2 * 100L);
int perm = (int) Math
.round((double) (progress * 1000L)
/ (double) duration);
if (perm > 1000) {
perm = 1000;
}
listener.progress(perm);
} catch (NumberFormatException e) {
;
}
}
}
}
lastWarning = null;
}
}
}
}
if (lastWarning != null) {
if (!SUCCESS_PATTERN.matcher(lastWarning).matches()) {
throw new EncoderException(lastWarning);
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
ffmpeg.destroy();
}
}Please advise, how to achieve video rotation without any video Frame loss
Thanks In Advance
Lakshmi Priya . K
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FFmpeg not encoding with libx264 library
29 octobre 2011, par bOkeifusHey people of StackOverflow. I have been having a strange issue that I'm not exactly sure what's going on. I am using FFmpeg to convert any incoming video files to h264 mp4 files using the libx264. This is the log that I get from running this line of code :
ffmpeg -y -i vdoname.flv -acodec libfaac -vcodec libx264 -sameq vid.mp4This is the log output after running the line :
FFmpeg version SVN-r13428, Copyright (c) 2000-2008 Fabrice Bellard, et al.
configuration: --prefix=/usr --disable-static --enable-shared --enable-gpl --enable-nonfree --enable-pthreads --enable-liba52 --enable-liba52bin --enable-libamr-nb --enable-libamr-wb --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --disable-network --disable-ipv6 --disable-ffserver --disable-ffplay
libavutil version: 49.6.0
libavcodec version: 51.57.0
libavformat version: 52.14.0
libavdevice version: 52.0.0
built on Feb 17 2009 09:01:13, gcc: 4.1.2 20071124 (Red Hat 4.1.2-42)
Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 49.92 (599/12)
Input #0, flv, from '/html/video/937.flv':
Duration: 00:00:10.08, start: 0.000000, bitrate: 48 kb/s
Stream #0.0: Video: flv, yuv420p, 720x480, 49.92 tb(r)
Stream #0.1: Audio: mp3, 22050 Hz, stereo, 48 kb/s
Output #0, h264, to '/html/flvideo/new_937.mp4':
Stream #0.0: Video: libx264, yuv420p, 720x480, q=2-31, 200 kb/s, 49.92 tb(c)
Stream #0.1: Audio: libfaac, 22050 Hz, stereo, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
[libx264 @ 0x11d58b0]using cpu capabilities: MMX MMXEXT SSE SSE2 3DNow!
Press [q] to stop encodingCan someone please help me out and tell me what to do to get this to work ? I guessed that the libx264 external library is not installed but it doesn't exactly say that in the log file and it looks as if it does find it but then doesn't actually encode the video.
Any and all help is greatly appreciated.
-
How can I convince ffserver to save a locally-sourced webcam stream to a file in high resolution AND stream it in lower resolution ?
2 novembre 2015, par Dominic JacobssenWe have a remote Linux machine, accessible over VPN, which has a USB webcam. We want to use this for video conferencing, but we also want to store the stream for archiving.
Since the streaming bandwidth is limited, it makes sense to capture the stream on the same machine as the webcam and rsync that across after-the-fact, rather than trying to capture the streamed content, which is necessarily going to be poor quality.
We’re trying to use ffmpeg and ffserver to achieve this, but with little success. Most of the articles on the internet either deal with just streaming a webcam, or rebroadcasting a remote stream. We found we had to recompile ffserver because of a missing "my_addr->sin_family = AF_INET ;" in the version of ffserver.c we had been using, since fixed in git.
Here’s the ffserver.conf we’re trying to use :
Port 43688
BindAddress 127.0.0.1
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 1000
CustomLog -
NoDaemon
<feed>
ReadOnlyFile /tmp/feed.ffm
FileMaxSize 20M
ACL allow 127.0.0.1
</feed>
<stream>
Feed feed.ffm
Format mp4
VideoSize qvga
VideoGopSize 12
VideoHighQuality
Video4MotionVector
VideoCodec libx264
VideoBitRate 100
VideoBufferSize 40
VideoFrameRate 5
VideoQMin 3
VideoQMax 31
AudioCodec libfaac
AudioBitRate 32
AudioChannels 2
AudioSampleRate 22050
ACL allow localhost
</stream>When we fire this up, we get the error :
Unable to create feed file '/tmp/feed.ffm' as it is marked readonlyFair enough, but this is not what is implied in the docs. Changing the directive to :
File /tmp/feed.ffmallows ffserver to fire up and appear to sit and wait for ffmpeg to connect to it. However, when we fire up ffmpeg with the command :
ffmpeg -f alsa -i pulse -r 16000 -f video4linux2 -s qvga -i /dev/video0 -r 5 -f mp4 -vcodec libx264 -sameq -acodec libfaac -ab 32k http://127.0.0.1:43688/feed.ffmthen the webcam lights up and ffserver acknowledges the connection with the messages :
New connection: POST /feed.ffm
[POST] "/feed.ffm HTTP/1.1" 200 0but after a few seconds we get the errors :
[mp4 @ 0x264b160] muxer does not support non seekable output
Could not write header for output file #0 (incorrect codec parameters ?)We’ve tried various other formats (mpeg, mpegts, avi) and codecs (mpeg1video, mpeg2video, mpeg4), all without success.
Moreover, we were under the impression that ffserver could reencode input format to a lower resolution for streaming, but if the stream resolution doesn’t match the feed resolution, we get an error about the resolutions not matching.
Has anyone ever managed to get this working correctly ? I’ve read about vlc being able to do something like this, but the vlc command lines are well nigh impenetrable.
Thanks !
Dominic
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