[vlc] H264 streaming using VLC

[peter johnasson]

I faced similar issues in the past.
you may need to explore Darwin.

- Peter.



On Dec 18, 2007 7:11 PM, Robert Howard <howard.robert4 at gmail.com> wrote:

>    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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