[FFmpeg-devel] Stack usage in FFmpeg

[Måns Rullgård]

Back in January, I posted a list of functions using 4k stack space or
more [1], and one truly terrible and a few lesser cases were promptly
fixed.

Here's a list of worst stack users today:

 495616 search_for_quantizers_anmr     aaccoder.c:472
 262144 ljpeg_decode_rgb_scan          mjpegdec.c:617
 100352 AC3_encode_frame               ac3enc.c:1182
  61440 mxf_get_d10_aes3_packet        mxfdec.c:216
  49920 put_main_header                vorbis_enc.c:523
  43264 ff_lpc_calc_coefs              lpc.c:170
  41984 encode_thread                  mpegvideo_enc.c:2000
  26624 rtsp_read_packet               rtsp.c:1469
  20736 rtsp_read_header               rtsp.c:1176
  18176 encode_window_bands_info       aaccoder.c:359
  16640 sdp_parse                      rtsp.c:515
  16640 sdp_parse_fmtp                 rtsp.c:268
  14464 dv_encode_video_segment        dv.c:990
  13376 mp_decode_layer3               mpegaudiodec.c:1912
  11840 encode_q_branch                snow.c:3059
  10944 ff_update_duplicate_context    mpegvideo.c:395
  10304 calc_rice_params               flacenc.c:490
  10304 generate_joint_tables          huffyuv.c:270
   9472 dvvideo_init                   dv.c:270
   8640 rtmp_open                      rtmpproto.c:569
   6720 dv_decode_video_segment        dv.c:516
   6464 parse_h264_sdp_line            rtp_h264.c:356
   6208 http_open_cnx                  http.c:55
   6144 rtsp_read_play                 rtsp.c:1601
   6144 rtsp_read_close                rtsp.c:1678
   6144 rtsp_read_pause                rtsp.c:1631
   6144 rtsp_read_reply                rtsp.c:763
   5888 ls_store_lse                   jpeglsenc.c:210
   5888 read_huffman_tables            4xm.c:517
   5376 mpegts_read_header             mpegts.c:1352
   5312 dca_subsubframe                dca.c:913
   5248 iterative_me                   snow.c:3838
   5248 mc_block                       snow.c:1595
   5120 gopher_open                    gopher.c:78
   5120 rtsp_send_cmd_async            rtsp.c:850
   4672 encode_frame                   snow.c:4402
   4608 qdm2_synthesis_filter          qdm2.c:1668
   4608 mpc_synth                      mpc.c:45
   4608 decode_frame_mp3on4            mpegaudiodec.c:2435
   4480 estimate_best_b_count          mpegvideo_enc.c:913
   4416 encode_residual                flacenc.c:716
   4288 svq1_encode_plane              svq1enc.c:272
   4288 bidir_refine                   motion_est.c:1395
   4224 calc_predictor_params          alacenc.c:130

I'd like to see at least the first one fixed.

[1] http://article.gmane.org/gmane.comp.video.ffmpeg.devel/80971

-- 
M?ns Rullg?rd
mans at mansr.com