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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (25)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...) -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...)
Sur d’autres sites (3560)
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ffmpeg live stream to website html5
31 août 2013, par roastbeefwhat I want to do is use a webcam or screen capture and broadcast to my site. Ive heard about apple's http streaming but i'm not interested because it's support seems limited. Can someone guide me into the right direction ? I would live to use html5 video. thanks
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How can i create a portrait video using Android's MediaRecorder
23 mars 2015, par urudroidI have an Android application which is able to record and play a videos in portrait mode, those features are working fine on Android phones.
The issue comes up because this video is needed to be played also on iOS devices (after being shared through a server).
iOS is not correctly showing the video as it looks "cropped", but videos recorded on iOS are played without issues.
So, the main difference between videos created on Android and iOS’ is the size and the rotation.
Im using CWAC-Camera library for preview and recording and ffmpeg to scale the video down to 320x568px (as this is the standard size for both Android and iOS apps).
Here is the metadata from an video created from Android :
General
Complete name : android_video.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 447 KiB
Duration : 5s 596ms
Overall bit rate : 654 Kbps
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00
Writing application : Lavf56.4.101
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L2.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 5s 406ms
Bit rate : 536 Kbps
Width : 568 pixels
Height : 320 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Rotation : 270°
Frame rate mode : Constant
Frame rate : 14.985 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.197
Stream size : 354 KiB (79%)
Writing library : x264 core 142
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=14 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Language : English
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 5s 596ms
Bit rate mode : Constant
Bit rate : 132 Kbps
Channel(s) : 2 channels
Channel(s)_Original : 1 channel
Channel positions : Front: C
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 89.4 KiB (20%)
Language : English
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00And here is the metadata from the video created on iOS :
General
Complete name : ios_video.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 673 KiB
Duration : 7s 38ms
Overall bit rate : 783 Kbps
Encoded date : UTC 2015-03-17 19:16:36
Tagged date : UTC 2015-03-17 19:16:37
Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.0
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 7s 33ms
Bit rate : 711 Kbps
Width : 320 pixels
Height : 568 pixels
Display aspect ratio : 0.563
Frame rate mode : Constant
Frame rate : 30.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.130
Stream size : 610 KiB (91%)
Title : Core Media Video
Encoded date : UTC 2015-03-17 19:16:36
Tagged date : UTC 2015-03-17 19:16:37
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Color range : Limited
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 7s 38ms
Source duration : 7s 105ms
Bit rate mode : Constant
Bit rate : 64.0 Kbps
Channel(s) : 2 channels
Channel(s)_Original : 1 channel
Channel positions : Front: C
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 56.8 KiB (8%)
Source stream size : 57.2 KiB (9%)
Title : Core Media Audio
Encoded date : UTC 2015-03-17 19:16:36
Tagged date : UTC 2015-03-17 19:16:37The values width and height are inverted on Android, also the Rotation parameter is set to 270º (this is the rotation parameter for portrait videos).
This is a sketch of how iOS’ videos look on iOS app :
And this is how Android’s videos look on iOS app :
So, in order to get the videos correctly displayed both on iOS and Android i need to be able to set the width to 320 and height to 568 on Android. I tried it from several places (outside and inside CWAC-Camera library) but i always get a Camera.Parameters error.
It is possible to do this on Android ?
EDIT :
This is the result i get when i set the rotation to 0 with ffmpeg :
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How to Turn image A + audio + A into Video A with the exact same attributes of Video B so both can be concatenated without encoding [closed]
13 décembre 2024, par Furkan GözükaraI have
image Aand it is PNG

I have
audio Aand it is MP3

I have
video Bthat can be any format, resolution, encoding, audio, etc

Now I want to turn
image A+audio Aintovideo Awith the exact attributes ofvideo Bso that I can concatenate them without encoding

Here my so far code which is failing. I am using Python and latest version of FFMPEG with most codecs and features


def get_video_info(video_path):
 cmd = [
 FFPROBE_PATH,
 '-v', 'quiet',
 '-print_format', 'json',
 '-show_format',
 '-show_streams',
 video_path
 ]
 result = subprocess.run(cmd, capture_output=True, text=True)
 info = json.loads(result.stdout)
 
 video_stream = next((s for s in info['streams'] if s['codec_type'] == 'video'), None)
 audio_stream = next((s for s in info['streams'] if s['codec_type'] == 'audio'), None)
 
 if not video_stream or not audio_stream:
 logging.error("Failed to find video or audio stream")
 return None

 return {
 'width': int(video_stream.get('width', 0)),
 'height': int(video_stream.get('height', 0)),
 'fps': eval(video_stream.get('r_frame_rate', '30/1')),
 'video_codec': video_stream.get('codec_name', ''),
 'audio_codec': audio_stream.get('codec_name', ''),
 'audio_sample_rate': int(audio_stream.get('sample_rate', 0)),
 'audio_channels': audio_stream.get('channels', 0),
 'pixel_format': video_stream.get('pix_fmt', ''),
 'color_space': video_stream.get('color_space', ''),
 'color_transfer': video_stream.get('color_transfer', ''),
 'color_primaries': video_stream.get('color_primaries', ''),
 }

def create_thumbnail_video(thumbnail_url, video_id, video_info, duration=40):
 output_dir = os.path.abspath('downloads')
 output_path = os.path.join(output_dir, f"{video_id}_thumbnail.mp4")
 audio_path = os.path.abspath("a.mp3")

 try:
 # 1. Download and process the image
 logging.info("Downloading thumbnail image...")
 response = requests.get(thumbnail_url, timeout=30)
 response.raise_for_status()

 # Save the original image
 original_image_path = os.path.join(output_dir, f'{video_id}_original_image.png')
 with open(original_image_path, 'wb') as f:
 f.write(response.content)

 # 2. Open and resize the image
 image = Image.open(original_image_path)
 width, height = video_info['width'], video_info['height']
 image = image.resize((width, height), Image.LANCZOS)

 # Save resized image
 resized_image_path = os.path.join(output_dir, f'{video_id}_resized_image.png')
 image.save(resized_image_path, 'PNG')

 # 3. Get properties of the main video using ffprobe
 main_video_path = os.path.join(output_dir, f"{video_id}.mp4") # Assuming main video has .mp4 extension
 main_video_info = get_video_info(main_video_path)

 if not main_video_info:
 raise Exception("Could not get information about the main video.")

 # 4. Generate video with matching encoding
 logging.info("Generating thumbnail video with matching codec and properties...")

 ffmpeg_command = [
 FFMPEG_PATH,
 '-y',
 '-loop', '1',
 '-i', resized_image_path,
 '-i', audio_path,
 '-c:v', main_video_info['video_codec'],
 '-c:a', main_video_info['audio_codec'],
 '-ar', str(main_video_info['audio_sample_rate']),
 '-pix_fmt', main_video_info['pixel_format'],
 '-color_range', main_video_info.get('color_range', '1'), # Default to tv/mpeg (limited) if not found
 '-colorspace', main_video_info['color_space'],
 '-color_trc', main_video_info['color_transfer'],
 '-color_primaries', main_video_info['color_primaries'],
 '-vf', f"fps={main_video_info['fps']},scale={width}:{height}",
 '-shortest',
 '-t', str(duration),
 output_path
 ]

 subprocess.run(ffmpeg_command, check=True, capture_output=True, text=True)
 logging.info(f"Thumbnail video created: {output_path}")

 # 5. Clean up intermediate files
 for file_path in [original_image_path, resized_image_path]:
 if os.path.exists(file_path):
 os.remove(file_path)
 logging.info(f"Removed intermediate file: {file_path}")

 return output_path

 except requests.RequestException as e:
 logging.error(f"Error downloading thumbnail: {e}")
 except subprocess.CalledProcessError as e:
 logging.error(f"FFmpeg error: {e.stderr}")
 except Exception as e:
 logging.error(f"Error in create_thumbnail_video: {e}")
 logging.error(traceback.format_exc())

 # If we've reached this point, an error occurred
 logging.warning("Thumbnail video creation failed. Returning None.")
 return None


Here example case


Generated video from image + audio as below


General
Complete name : C:\stream\downloads\hqDA0-waGwI_thumbnail.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 1.50 MiB
Duration : 40 s 0 ms
Overall bit rate mode : Variable
Overall bit rate : 315 kb/s
Frame rate : 30.000 FPS
Writing application : Lavf61.9.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference fra : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 40 s 0 ms
Bit rate : 179 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.003
Stream size : 875 KiB (57%)
Writing library : x264 core 164
Encoding settings : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=34 / lookahead_threads=5 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
Color range : Limited
Matrix coefficients : BT.709
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 40 s 0 ms
Source duration : 40 s 23 ms
Source_Duration_LastFrame : -8 ms
Bit rate mode : Variable
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 621 KiB (40%)
Source stream size : 621 KiB (40%)
Default : Yes
Alternate group : 1


Source video used to get video attributes


General
Complete name : C:\stream\downloads\hqDA0-waGwI.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 24.9 MiB
Duration : 1 min 36 s
Overall bit rate : 2 171 kb/s
Frame rate : 30.000 FPS
Writing application : Lavf61.9.100

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 3 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference fra : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 min 36 s
Bit rate : 2 036 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.033
Stream size : 23.3 MiB (94%)
Title : ISO Media file produced by Google Inc.
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 1 min 36 s
Bit rate mode : Constant
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 1.47 MiB (6%)
Title : ISO Media file produced by Google Inc.
Language : English
Default : Yes
Alternate group : 1


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