[vlc-devel] H264 streaming using VLC

[Robert Howard]

 Hi

I need some help with streaming H264 encoded video using VLC.

I have a hardware encoder using which I am encoding H.264 file. I am able to
play the file in latest version of VLC 0.8.6d, however I am unable to stream
the file. I am getting following trace while streaming,

=============================================
[00000452] main input debug: starting in sync mode
[00000452] main input debug: `enc.h264' successfully opened
[00000473] packetizer_h264 packetizer debug: found NAL_SPS
[00000473] packetizer_h264 packetizer debug: found NAL_PPS
status change: ( new input: enc.h264 )
status change: ( audio volume: 256 )
status change: ( play state: 1 )
[00000452] main input debug: EOF reached
[00000452] main input debug: closing input
[00000473] main packetizer debug: removing module "packetizer_h264"
[00000471] main demuxer debug: removing module "h264"
[00000462] main access debug: removing module "access_file"
[00000452] main input debug: destroying sout
[00000455] main private debug: destroying chain... (name=rtp)
[00000458] main http server debug: thread 3031296944 joined
(network/httpd.c:1134)
[00000458] main http server debug: HTTP host removed
[00000457] main http server debug: no host left, stopping httpd
[00000455] main private debug: removing module "stream_out_rtp"
[00000455] main private debug: destroying chain done
Length of buffer to be read = 912858status change: ( stop state: 0 )
[00000452] main input debug: thread 3041786800 joined (input/input.c:412)
[00000446] main playlist: nothing to play
signal 2 received, terminating vlc - do it again in case it gets stuck
status change: ( stop state: 0 )
status change: ( quit )
 =============================================

After parsing the entire file, the streamer just stops without streaming.
Any idea what H264 format VLC is looking for?

I am also attaching the H.264 encoded file.

MPEG4IP Tool output for the encoded file is as follows:

Nal length 13 start code 4 bytes
 ref 3 type 7 Sequence parameter set
   profile: 66
   constaint_set0_flag: 0
   constaint_set1_flag: 0
   constaint_set2_flag: 0
   constaint_set3_flag: 0
   level_idc: 30
   seq parameter set id: 0
   log2_max_frame_num_minus4: 1
   pic_order_cnt_type: 0
    log2_max_pic_order_cnt_lsb_minus4: 2
   num_ref_frames: 1
   gaps_in_frame_num_value_allowed_flag: 0
   pic_width_in_mbs_minus1: 39 (640)
   pic_height_in_map_minus1: 29
   frame_mbs_only_flag: 1
     derived height: 480
   direct_8x8_inference_flag: 1
   frame_cropping_flag: 0
   vui_parameters_present_flag: 0
Nal length 8 start code 4 bytes
 ref 3 type 8 Picture parameter set
   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
   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
Nal length 1428 start code 4 bytes
 ref 3 type 5 Coded slice of an IDR picture
   first_mb_in_slice: 0
   slice_type: 7 (I)
   pic_parameter_set_id: 0
   frame_num: 0 (5 bits)
   idr_pic_id: 0
   pic_order_cnt_lsb: 0
Nal length 1733 start code 4 bytes
 ref 2 type 1 Coded slice of non-IDR picture
   first_mb_in_slice: 0
   slice_type: 5 (P)
   pic_parameter_set_id: 0
   frame_num: 1 (5 bits)
   pic_order_cnt_lsb: 2
Nal is new picture
Nal length 134 start code 4 bytes
 ref 2 type 1 Coded slice of non-IDR picture
   first_mb_in_slice: 0
   slice_type: 5 (P)
   pic_parameter_set_id: 0
   frame_num: 2 (5 bits)
   pic_order_cnt_lsb: 4
Nal is new picture

- Rob
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