Recherche avancée
Médias (1)
-
Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (89)
-
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...) -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
-
Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)
Sur d’autres sites (11147)
-
Dumping and playing h264 bytestream from RTSP webcam
18 octobre 2011, par thekMy goal is to connect (rtsp) to camera, get h264 stream from rtp packages, save it as a bytestream to file and be able to play it (with ffplay or vlc). The only problem is that my result stream gives me errors (and a nice gray rectangle, sometimes with something moving - like only P frames are decoded) while playing.
Here is my DESCRIBE response from rtsp server (ip replaced with ) :
10:04:18.387 [New I/O client worker #1-1] INFO rtsp.WebcamClientResponseHandler - Sending DESCRIBE request: DESCRIBE rtsp://<server>:<port>/channel1 RTSP/1.0
-------status---------
200 OK
-------headers---------
CSeq : 2
Date : Wed, Jan 07 2009 19:05:09 GMT
Content-Base : rtsp://<server>/channel1/
Content-Type : application/sdp
Content-Length : 433
-------content---------
v=0
o=- 515949295799 1 IN IP4 <server>
s=Session streamed by stream
i=1
t=0 0
a=tool:LIVE555 Streaming Media v2009.01.26
a=type:broadcast
a=control:*
a=range:npt=0-
a=x-qt-text-nam:Session streamed by stream
a=x-qt-text-inf:1
m=video 0 RTP/AVP 96
c=IN IP4 0.0.0.0
b=AS:128
a=rtpmap:96 H264/90000
a=fmtp:96 packetization-mode=1;profile-level-id=420028;sprop-parameter-sets=Z0IAKOkCg/I=,aM44gA==
a=control:tracks
</server></server></port></server>And server sends me RTP packages with non IDR frames and fragmented (type=28) IDR frames. First ones are written to file, fragmented are unpacked.
The result byte stream is :NAL SPS NAL PPS NAL FRAME1 NAL FRAME2 ... NAL FRAMEN
where NAL is (hex) 00 00 01
and SPS is (decoded Z0IAKOkCg/I= from sprop-parameter-sets): 67 42 00 28 e9 02 83 f2
and PPS is (decoded aM44gA==): 68 ce 38 80I found similar topic with same steps taken :
how-to-process-raw-udp-packets-so-that-they-can-be-decoded-by-a-decoder-filter-i
but I can't see what am I missing.Could anyone give me some clue what may be wrong ?
This is a link to generated h264 file :
a.h264Below I'm attaching some more information from playing my stream.
Playing my video with ffplay -f h264 a.h264 gives me following output (and a gray rectangle) :
ffplay version 0.8.4-4:0.8.4-0ubuntu1~jon1, Copyright (c) 2003-2011 the FFmpeg developers
built on Sep 25 2011 09:45:09 with gcc 4.4.3
configuration: --extra-version='4:0.8.4-0ubuntu1~jon1' --prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
libavutil 51. 9. 1 / 51. 9. 1
libavcodec 53. 7. 0 / 53. 7. 0
libavformat 53. 4. 0 / 53. 4. 0
libavdevice 53. 1. 1 / 53. 1. 1
libavfilter 2. 23. 0 / 2. 23. 0
libswscale 2. 0. 0 / 2. 0. 0
libpostproc 52. 0. 0 / 52. 0. 0
[h264 @ 0x184d4c0] Missing reference picture
[h264 @ 0x184d4c0] decode_slice_header error
[h264 @ 0x184d4c0] concealing 300 DC, 300 AC, 300 MV errors
[h264 @ 0x1822640] max_analyze_duration 5000000 reached at 5000000
[h264 @ 0x1822640] Estimating duration from bitrate, this may be inaccurate
Input #0, h264, from 'a.h264':
Duration: N/A, bitrate: N/A
Stream #0.0: Video: h264 (Baseline), yuv420p, 320x240, 25 fps, 25 tbr, 1200k tbn, 50 tbc
[h264 @ 0x184d4c0] Missing reference pictureq= 3KB sq= 0B f=0/0
[h264 @ 0x184d4c0] decode_slice_header error
[h264 @ 0x184d4c0] concealing 300 DC, 300 AC, 300 MV errors
[h264 @ 0x184d4c0] QP 4294967283 out of rangeKB sq= 0B f=0/0 0/0
[h264 @ 0x184d4c0] decode_slice_header error
[h264 @ 0x184d4c0] concealing 300 DC, 300 AC, 300 MV errors
[h264 @ 0x184d4c0] Missing reference picture
[h264 @ 0x184d4c0] decode_slice_header error
[h264 @ 0x184d4c0] mmco: unref short failure
[h264 @ 0x184d4c0] concealing 300 DC, 300 AC, 300 MV errors
[h264 @ 0x184d4c0] P sub_mb_type 5 out of range at 8 0
[h264 @ 0x184d4c0] error while decoding MB 8 0
[h264 @ 0x184d4c0] concealing 300 DC, 300 AC, 300 MV errors
[h264 @ 0x184d4c0] QP 4294967283 out of range
[h264 @ 0x184d4c0] decode_slice_header error
[h264 @ 0x184d4c0] concealing 300 DC, 300 AC, 300 MV errorsRunning h264_analyse (http://h264bitstream.sourceforge.net/) on my stream gives me :
./h264_analyze a.h264
!! Found NAL at offset 3 (0x0003), size 8 (0x0008)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 3
nal_unit_type : 7 ( Sequence parameter set )
======= SPS =======
profile_idc : 66
constraint_set0_flag : 0
constraint_set1_flag : 0
constraint_set2_flag : 0
constraint_set3_flag : 0
reserved_zero_4bits : 0
level_idc : 40
seq_parameter_set_id : 0
chroma_format_idc : 0
residual_colour_transform_flag : 0
bit_depth_luma_minus8 : 0
bit_depth_chroma_minus8 : 0
qpprime_y_zero_transform_bypass_flag : 0
seq_scaling_matrix_present_flag : 0
log2_max_frame_num_minus4 : 0
pic_order_cnt_type : 0
log2_max_pic_order_cnt_lsb_minus4 : 1
delta_pic_order_always_zero_flag : 0
offset_for_non_ref_pic : 0
offset_for_top_to_bottom_field : 0
num_ref_frames_in_pic_order_cnt_cycle : 0
num_ref_frames : 1
gaps_in_frame_num_value_allowed_flag : 0
pic_width_in_mbs_minus1 : 19
pic_height_in_map_units_minus1 : 14
frame_mbs_only_flag : 1
mb_adaptive_frame_field_flag : 0
direct_8x8_inference_flag : 1
frame_cropping_flag : 0
frame_crop_left_offset : 0
frame_crop_right_offset : 0
frame_crop_top_offset : 0
frame_crop_bottom_offset : 0
vui_parameters_present_flag : 0
=== VUI ===
aspect_ratio_info_present_flag : 0
aspect_ratio_idc : 0
sar_width : 0
sar_height : 0
overscan_info_present_flag : 0
overscan_appropriate_flag : 0
video_signal_type_present_flag : 0
video_format : 0
video_full_range_flag : 0
colour_description_present_flag : 0
colour_primaries : 0
transfer_characteristics : 0
matrix_coefficients : 0
chroma_loc_info_present_flag : 0
chroma_sample_loc_type_top_field : 0
chroma_sample_loc_type_bottom_field : 0
timing_info_present_flag : 0
num_units_in_tick : 0
time_scale : 0
fixed_frame_rate_flag : 0
nal_hrd_parameters_present_flag : 0
vcl_hrd_parameters_present_flag : 0
low_delay_hrd_flag : 0
pic_struct_present_flag : 0
bitstream_restriction_flag : 0
motion_vectors_over_pic_boundaries_flag : 0
max_bytes_per_pic_denom : 0
max_bits_per_mb_denom : 0
log2_max_mv_length_horizontal : 0
log2_max_mv_length_vertical : 0
num_reorder_frames : 0
max_dec_frame_buffering : 0
=== HRD ===
cpb_cnt_minus1 : 0
bit_rate_scale : 0
cpb_size_scale : 0
initial_cpb_removal_delay_length_minus1 : 0
cpb_removal_delay_length_minus1 : 0
dpb_output_delay_length_minus1 : 0
time_offset_length : 0
!! Found NAL at offset 14 (0x000E), size 4 (0x0004)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 3
nal_unit_type : 8 ( Picture parameter set )
======= PPS =======
pic_parameter_set_id : 0
seq_parameter_set_id : 0
entropy_coding_mode_flag : 0
pic_order_present_flag : 0
num_slice_groups_minus1 : 0
slice_group_map_type : 0
num_ref_idx_l0_active_minus1 : 0
num_ref_idx_l1_active_minus1 : 0
weighted_pred_flag : 0
weighted_bipred_idc : 0
pic_init_qp_minus26 : 0
pic_init_qs_minus26 : 0
chroma_qp_index_offset : 0
deblocking_filter_control_present_flag : 0
constrained_intra_pred_flag : 0
redundant_pic_cnt_present_flag : 0
transform_8x8_mode_flag : 1
pic_scaling_matrix_present_flag : 0
second_chroma_qp_index_offset : 16
!! Found NAL at offset 21 (0x0015), size 480 (0x01E0)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 2
nal_unit_type : 1 ( Coded slice of a non-IDR picture )
======= Slice Header =======
first_mb_in_slice : 0
slice_type : 5 ( P slice only )
pic_parameter_set_id : 0
frame_num : 1
field_pic_flag : 0
bottom_field_flag : 0
idr_pic_id : 0
pic_order_cnt_lsb : 2
delta_pic_order_cnt_bottom : 0
redundant_pic_cnt : 0
direct_spatial_mv_pred_flag : 0
num_ref_idx_active_override_flag : 0
num_ref_idx_l0_active_minus1 : 0
num_ref_idx_l1_active_minus1 : 0
cabac_init_idc : 0
slice_qp_delta : -7
sp_for_switch_flag : 0
slice_qs_delta : 0
disable_deblocking_filter_idc : 0
slice_alpha_c0_offset_div2 : 0
slice_beta_offset_div2 : 0
slice_group_change_cycle : 0
=== Prediction Weight Table ===
luma_log2_weight_denom : 0
chroma_log2_weight_denom : 0
luma_weight_l0_flag : 0
chroma_weight_l0_flag : 0
luma_weight_l1_flag : 0
chroma_weight_l1_flag : 0
=== Ref Pic List Reordering ===
ref_pic_list_reordering_flag_l0 : 0
ref_pic_list_reordering_flag_l1 : 0
=== Decoded Ref Pic Marking ===
no_output_of_prior_pics_flag : 0
long_term_reference_flag : 0
adaptive_ref_pic_marking_mode_flag : 0
!! Found NAL at offset 504 (0x01F8), size 324 (0x0144)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 2
nal_unit_type : 1 ( Coded slice of a non-IDR picture )
======= Slice Header =======
first_mb_in_slice : 0
slice_type : 5 ( P slice only )
pic_parameter_set_id : 0
frame_num : 2
field_pic_flag : 0
bottom_field_flag : 0
idr_pic_id : 0
pic_order_cnt_lsb : 4
delta_pic_order_cnt_bottom : 0
redundant_pic_cnt : 0
direct_spatial_mv_pred_flag : 0
num_ref_idx_active_override_flag : 0
num_ref_idx_l0_active_minus1 : 0
num_ref_idx_l1_active_minus1 : 0
cabac_init_idc : 0
slice_qp_delta : -7
sp_for_switch_flag : 0
slice_qs_delta : 0
disable_deblocking_filter_idc : 0
slice_alpha_c0_offset_div2 : 0
slice_beta_offset_div2 : 0
slice_group_change_cycle : 0
=== Prediction Weight Table ===
luma_log2_weight_denom : 0
chroma_log2_weight_denom : 0
luma_weight_l0_flag : 0
chroma_weight_l0_flag : 0
luma_weight_l1_flag : 0
chroma_weight_l1_flag : 0
=== Ref Pic List Reordering ===
ref_pic_list_reordering_flag_l0 : 0
ref_pic_list_reordering_flag_l1 : 0
=== Decoded Ref Pic Marking ===
no_output_of_prior_pics_flag : 0
long_term_reference_flag : 0
adaptive_ref_pic_marking_mode_flag : 0
!! Found NAL at offset 831 (0x033F), size 300 (0x012C)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 2
nal_unit_type : 1 ( Coded slice of a non-IDR picture )
======= Slice Header =======
first_mb_in_slice : 0
slice_type : 5 ( P slice only )
pic_parameter_set_id : 0
frame_num : 3
field_pic_flag : 0
bottom_field_flag : 0
idr_pic_id : 0
pic_order_cnt_lsb : 6
delta_pic_order_cnt_bottom : 0
redundant_pic_cnt : 0
direct_spatial_mv_pred_flag : 0
num_ref_idx_active_override_flag : 0
num_ref_idx_l0_active_minus1 : 0
num_ref_idx_l1_active_minus1 : 0
cabac_init_idc : 0
slice_qp_delta : -7
sp_for_switch_flag : 0
slice_qs_delta : 0
disable_deblocking_filter_idc : 0
slice_alpha_c0_offset_div2 : 0
slice_beta_offset_div2 : 0
slice_group_change_cycle : 0
=== Prediction Weight Table ===
luma_log2_weight_denom : 0
chroma_log2_weight_denom : 0
luma_weight_l0_flag : 0
chroma_weight_l0_flag : 0
luma_weight_l1_flag : 0
chroma_weight_l1_flag : 0
=== Ref Pic List Reordering ===
ref_pic_list_reordering_flag_l0 : 0
ref_pic_list_reordering_flag_l1 : 0
=== Decoded Ref Pic Marking ===
no_output_of_prior_pics_flag : 0
long_term_reference_flag : 0
adaptive_ref_pic_marking_mode_flag : 0
!! Found NAL at offset 1134 (0x046E), size 825 (0x0339)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 2
nal_unit_type : 1 ( Coded slice of a non-IDR picture )
======= Slice Header =======
first_mb_in_slice : 0
slice_type : 5 ( P slice only )
pic_parameter_set_id : 0
frame_num : 4
field_pic_flag : 0
bottom_field_flag : 0
idr_pic_id : 0
pic_order_cnt_lsb : 8
delta_pic_order_cnt_bottom : 0
redundant_pic_cnt : 0
direct_spatial_mv_pred_flag : 0
num_ref_idx_active_override_flag : 0
num_ref_idx_l0_active_minus1 : 0
num_ref_idx_l1_active_minus1 : 0
cabac_init_idc : 0
slice_qp_delta : -9
sp_for_switch_flag : 0
slice_qs_delta : 0
disable_deblocking_filter_idc : 0
slice_alpha_c0_offset_div2 : 0
slice_beta_offset_div2 : 0
slice_group_change_cycle : 0
=== Prediction Weight Table ===
luma_log2_weight_denom : 0
chroma_log2_weight_denom : 0
luma_weight_l0_flag : 0
chroma_weight_l0_flag : 0
luma_weight_l1_flag : 0
chroma_weight_l1_flag : 0
=== Ref Pic List Reordering ===
ref_pic_list_reordering_flag_l0 : 0
ref_pic_list_reordering_flag_l1 : 0
=== Decoded Ref Pic Marking ===
no_output_of_prior_pics_flag : 0
long_term_reference_flag : 0
adaptive_ref_pic_marking_mode_flag : 0
!! Found NAL at offset 1962 (0x07AA), size 754 (0x02F2)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 2
nal_unit_type : 1 ( Coded slice of a non-IDR picture )
======= Slice Header =======
first_mb_in_slice : 0
slice_type : 5 ( P slice only )
pic_parameter_set_id : 0
frame_num : 5
field_pic_flag : 0
bottom_field_flag : 0
idr_pic_id : 0
pic_order_cnt_lsb : 10
delta_pic_order_cnt_bottom : 0
redundant_pic_cnt : 0
direct_spatial_mv_pred_flag : 0
num_ref_idx_active_override_flag : 0
num_ref_idx_l0_active_minus1 : 0
num_ref_idx_l1_active_minus1 : 0
cabac_init_idc : 0
slice_qp_delta : -9
sp_for_switch_flag : 0
slice_qs_delta : 0
disable_deblocking_filter_idc : 0
slice_alpha_c0_offset_div2 : 0
slice_beta_offset_div2 : 0
slice_group_change_cycle : 0
=== Prediction Weight Table ===
luma_log2_weight_denom : 0
chroma_log2_weight_denom : 0
luma_weight_l0_flag : 0
chroma_weight_l0_flag : 0
luma_weight_l1_flag : 0
chroma_weight_l1_flag : 0
=== Ref Pic List Reordering ===
ref_pic_list_reordering_flag_l0 : 0
ref_pic_list_reordering_flag_l1 : 0
=== Decoded Ref Pic Marking ===
no_output_of_prior_pics_flag : 0
long_term_reference_flag : 0
adaptive_ref_pic_marking_mode_flag : 0
!! Found NAL at offset 2719 (0x0A9F), size 824 (0x0338)
==================== NAL ====================
forbidden_zero_bit : 0
nal_ref_idc : 2
nal_unit_type : 1 ( Coded slice of a non-IDR picture )
======= Slice Header =======
first_mb_in_slice : 0
slice_type : 5 ( P slice only )
pic_parameter_set_id : 0
frame_num : 6
field_pic_flag : 0
bottom_field_flag : 0
idr_pic_id : 0
pic_order_cnt_lsb : 12
delta_pic_order_cnt_bottom : 0
redundant_pic_cnt : 0
direct_spatial_mv_pred_flag : 0
num_ref_idx_active_override_flag : 0
num_ref_idx_l0_active_minus1 : 0
num_ref_idx_l1_active_minus1 : 0
cabac_init_idc : 0
slice_qp_delta : -9
sp_for_switch_flag : 0
slice_qs_delta : 0
disable_deblocking_filter_idc : 0
slice_alpha_c0_offset_div2 : 0
slice_beta_offset_div2 : 0
slice_group_change_cycle : 0
=== Prediction Weight Table ===
luma_log2_weight_denom : 0
chroma_log2_weight_denom : 0
luma_weight_l0_flag : 0
chroma_weight_l0_flag : 0
luma_weight_l1_flag : 0
chroma_weight_l1_flag : 0
=== Ref Pic List Reordering ===
ref_pic_list_reordering_flag_l0 : 0
ref_pic_list_reordering_flag_l1 : 0
=== Decoded Ref Pic Marking ===
no_output_of_prior_pics_flag : 0
long_term_reference_flag : 0
adaptive_ref_pic_marking_mode_flag : 0
!! Found NAL at offset 3546 (0x0DDA), size 628 (0x0274)
==================== NAL ====================
[...] -
Decode android's hardware encoded H264 camera feed using ffmpeg in real time
31 octobre 2012, par user971871I'm trying to use the hardware
H264encoder on Android to create video from the camera, and useFFmpegto mux in audio (all on the Android phone itself)What I've accomplished so far is packetizing the
H264video intortsppackets, and decoding it using VLC (overUDP), so I know the video is at least correctly formatted. However, I'm having trouble getting the video data toffmpegin a format it can understand.I've tried sending the same
rtsppackets to a port 5006 on localhost (over UDP), then providingffmpegwith thesdpfile that tells it which local port the video stream is coming in on and how to decode the video, if I understandrtspstreaming correctly. However this doesn't work and I'm having trouble diagnosing why, asffmpegjust sits there waiting for input.For reasons of latency and scalability I can't just send the video and audio to the server and mux it there, it has to be done on the phone, in as lightweight a manner as possible.
What I guess I'm looking for are suggestions as to how this can be accomplished. The optimal solution would be sending the packetized
H264video toffmpegover a pipe, but then I can't sendffmpegthesdpfile parameters it needs to decode the video.I can provide more information on request, like how
ffmpegis compiled for Android but I doubt that's necessary.Oh, and the way I start
ffmpegis through command line, I would really rather avoid mucking about with jni if that's at all possible.And help would be much appreciated, thanks.
-
Playing RTSP stream in Android
9 décembre 2014, par KamilI’m trying to play video stream on Android device. Unfortunatelly I still get the same problem with MediaPlayer/VideoView. I’m searching for a few days, but still haven’t found any working solution.
For test purposes I’m using MediaPlayer app from API Demos (API Demos/Media/MediaPlayer/Play Streaming Video).
Here is code snippet for playing streammMediaPlayer = new MediaPlayer();
mMediaPlayer.setDataSource(path);
mMediaPlayer.setDisplay(holder);
mMediaPlayer.prepare();
mMediaPlayer.setOnBufferingUpdateListener(this);
mMediaPlayer.setOnCompletionListener(this);
mMediaPlayer.setOnPreparedListener(this);
mMediaPlayer.setOnVideoSizeChangedListener(this);When I try to play stream I get this info from logcat
http://pastebin.com/5Uib5CH5This is configuration of ffserver streaming the video
Port 8090
BindAddress 0.0.0.0
RTSPPort 7654
RTSPBindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 10000
CustomLog -
NoDaemon
&lt;Feed feed1.ffm&gt;
File /tmp/feed1.ffm
FileMaxSize 5M
Launch ffmpeg -i mmsh://tempserv.cam/vid1
ACL allow 127.0.0.1
&lt;/Feed&gt;
&lt;Stream rat1.mpg&gt;
Feed feed1.ffm
Format rtp
NoAudio
VideoBitRate 56k
VideoBufferSize 40
VideoFrameRate 12
VideoSize 176x144
VideoGopSize 12
VideoCodec libx264
AVPresetVideo baseline
&lt;/Stream&gt;If anyone can advise me how to fix it, or at least indicate an mistake, I will be grateful.
Syndiquer tout le site
