mpeg 2 encoding of .yuv video

[maheshmore]

Hello all,

I am trying to encode akiyo_cif.yuv video file (resolution 352 x 288) (downloaded from http://trace.eas.asu.edu/yuv/akiyo/akiyo_cif.7z) using mpeg 2 encoder (version 1.1) downloaded from MPEG official site ( http://www.mpeg.org/pub_ftp/mpeg/mssg/old/mpeg2codec_v1.1a.tar.gz).



content of parameter file are given below(parameter file is also attached below)



MPEG-2 Verification Sequence
akiyo_cif /* name of source files */
- /* name of reconstructed images ("-": don't store) */
- /* name of intra quant matrix file ("-": default matrix) */
- /* name of non intra quant matrix file ("-": default matrix) */
stat.out /* name of statistics file ("-": stdout ) */
0 /* input picture file format: 0=*.Y,*.U,*.V, 1=*.yuv, 2=*.ppm */
300 /* number of frames */
0 /* number of first frame */
23:59:59:24 /* timecode of first frame */
6 /* N (# of frames in GOP) */
2 /* M (I/P frame distance) */
0 /* ISO/IEC 11172-2 stream */
0 /* 0:frame pictures, 1:field pictures */
352 /* horizontal_size */
288 /* vertical_size */
2 /* aspect_ratio_information 1=square pel, 2=4:3, 3=16:9, 4=2.11:1 */
3 /* frame_rate_code 2=23.976, 3=25, 4=29.97, 5=30 frames/second */
400000.0 /* bit_rate (bits/s) */
12 /* vbv_buffer_size (in multiples of 16 kbit) */
0 /* low_delay */
0 /* constrained_parameters_flag */
4 /* Profile ID: Simple = 5, Main = 4, SNR = 3, Spatial = 2, High = 1 */
8 /* Level ID: Low = 10, Main = 8, High 1440 = 6, High = 4 */
0 /* progressive_sequence */
1 /* chroma_format: 1=4:2:0, 2=4:2:2, 3=4:4:4 */
1 /* video_format: 0=comp., 1=PAL, 2=NTSC, 3=SECAM, 4=MAC, 5=unspec. */
5 /* color_primaries */
5 /* transfer_characteristics */
5 /* matrix_coefficients */
352 /* display_horizontal_size */
288 /* display_vertical_size */
1 /* intra_dc_precision (0: 8 bit, 1: 9 bit, 2: 10 bit, 3: 11 bit */
1 /* top_field_first */
1 0 0 /* frame_pred_frame_dct (I P B) */
0 0 0 /* concealment_motion_vectors (I P B) */
0 1 1 /* q_scale_type (I P B) */
1 1 0 /* intra_vlc_format (I P B)*/
1 0 1 /* alternate_scan (I P B) */
0 /* repeat_first_field */
0 /* progressive_frame */
0 /* P distance between complete intra slice refresh */
0 /* rate control: r (reaction parameter) */
0 /* rate control: avg_act (initial average activity) */
0 /* rate control: Xi (initial I frame global complexity measure) */
0 /* rate control: Xp (initial P frame global complexity measure) */
0 /* rate control: Xb (initial B frame global complexity measure) */
0 /* rate control: d0i (initial I frame virtual buffer fullness) */
0 /* rate control: d0p (initial P frame virtual buffer fullness) */
0 /* rate control: d0b (initial B frame virtual buffer fullness) */
2 2 11 11 /* P: forw_hor_f_code forw_vert_f_code search_width/height */
1 1 3 3 /* B1: forw_hor_f_code forw_vert_f_code search_width/height */
1 1 7 7 /* B1: back_hor_f_code back_vert_f_code search_width/height */
1 1 7 7 /* B2: forw_hor_f_code forw_vert_f_code search_width/height */
1 1 3 3 /* B2: back_hor_f_code back_vert_f_code search_width/height */







But I am not able to get desired output. It only shows the 1st frame of video for whole duration.


Can you suggest what is the problem .yuv file, parameter file or anything else?

[rishi007bansod]

I am also having same problem in processing .yuv.

please reply

[Music Fan]

I didn't know this format, but I just saw that VLC could open it, and thus maybe convert it. By the way, the resolution is 176.144 and fps 25 (according to VLC).
You can also try to open it with Avisynth and open the script in your encoder.

edit : Avisynth can open it with the plugin RawSource ;
http://forum.doom9.org/showthread.php?p=1641673#post1641673
This script works ;
RawSource("I:\akiyo_qcif.yuv",176,144,"I420")

[maheshmore]

Thanx for correcting me..... It was a typo. It is Akiyo_cif (not akiyo_qcif). I have made changes accordingly in original post.

[Music Fan]

Actually the good pixel type is I420, not YV12, otherwise the face of the woman is blue, I corrected my previous post.
And there are only 300 frames.

[maheshmore]

Yes. And same is used here