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1025 lines
33 KiB
1025 lines
33 KiB
4 years ago
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/*
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* encode_x264.c - encodes video using the x264 library
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* Written by Christian Bodenstedt, with NMS adaptation and other changes
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* by Andrew Church
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*
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* This file is part of transcode, a video stream processing tool.
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* transcode is free software, distributable under the terms of the GNU
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* General Public License (version 2 or later). See the file COPYING
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* for details.
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*/
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/*
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* Many parts of this file are taken from FFMPEGs "libavcodec/x264.c",
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* which is licensed under LGPL. Other sources of information were
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* "export_ffmpeg.c", X264s "x264.c" and MPlayers "libmpcodecs/ve_x264.c"
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* (all licensed GPL afaik).
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*/
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#include "transcode.h"
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#include "aclib/ac.h"
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#include "libtc/libtc.h"
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#include "libtc/cfgfile.h"
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#include "libtc/optstr.h"
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#include "libtc/tcmodule-plugin.h"
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#include "libtc/ratiocodes.h"
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#include <x264.h>
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#if X264_BUILD < 65
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# error x264 version 65 or later is required
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#endif
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#define MOD_NAME "encode_x264.so"
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#define MOD_VERSION "v0.3.2s (2010-01-02)"
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#define MOD_CAP "x264 encoder"
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#define MOD_FEATURES \
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TC_MODULE_FEATURE_ENCODE|TC_MODULE_FEATURE_VIDEO
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#define MOD_FLAGS \
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TC_MODULE_FLAG_RECONFIGURABLE
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/* Module configuration file */
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#define X264_CONFIG_FILE "x264.cfg"
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/* Private data for this module */
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typedef struct {
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int framenum;
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int interval;
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int width;
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int height;
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int flush_flag;
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x264_param_t x264params;
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x264_t *enc;
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int twopass_bug_workaround; // Work around x264 logfile generation bug?
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char twopass_log_path[4096]; // Logfile path (for 2-pass bug workaround)
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} X264PrivateData;
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/* Static structure to provide pointers for configuration entries */
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static struct confdata_struct {
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x264_param_t x264params;
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/* Dummy fields for obsolete options */
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int dummy_direct_8x8;
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int dummy_bidir_me;
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int dummy_brdo;
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/* Local parameters */
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int twopass_bug_workaround;
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} confdata;
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/*************************************************************************/
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/* This array describes all option-names, pointers to where their
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* values are stored and the allowed ranges. It's needed to parse the
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* x264.cfg file using libtc. */
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/* Use e.g. OPTION("overscan", vui.i_overscan) for x264params.vui.i_overscan */
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#define OPTION(field,name,type,flag,low,high) \
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{name, &confdata.x264params.field, (type), (flag), (low), (high)},
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/* Option to turn a flag on or off; the off version will have "no" prepended */
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#define OPT_FLAG(field,name) \
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OPTION(field, name, TCCONF_TYPE_FLAG, 0, 0, 1) \
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OPTION(field, "no" name, TCCONF_TYPE_FLAG, 0, 1, 0)
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/* Integer option with range */
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#define OPT_RANGE(field,name,low,high) \
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OPTION(field, name, TCCONF_TYPE_INT, TCCONF_FLAG_RANGE, (low), (high))
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/* Floating-point option */
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#define OPT_FLOAT(field,name) \
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OPTION(field, name, TCCONF_TYPE_FLOAT, 0, 0, 0)
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/* Floating-point option with range */
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#define OPT_RANGF(field,name,low,high) \
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OPTION(field, name, TCCONF_TYPE_FLOAT, TCCONF_FLAG_RANGE, (low), (high))
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/* String option */
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#define OPT_STR(field,name) \
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OPTION(field, name, TCCONF_TYPE_STRING, 0, 0, 0)
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/* Dummy entry that doesn't generate an option (placeholder) */
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#define OPT_NONE(field) /*nothing*/
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static TCConfigEntry conf[] ={
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/* CPU flags */
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/* CPU acceleration flags (we leave the x264 default alone) */
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OPT_NONE (cpu)
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/* Divide each frame into multiple slices, encode in parallel */
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OPT_RANGE(i_threads, "threads", 1, 4)
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/* Video Properties */
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OPT_NONE (i_width)
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OPT_NONE (i_height)
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OPT_NONE (i_csp) /* CSP of encoded bitstream, only i420 supported */
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/* H.264 level (1.0 ... 5.1) */
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OPT_RANGE(i_level_idc, "level_idc", 10, 51)
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OPT_NONE (i_frame_total) /* number of frames to encode if known, else 0 */
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/* they will be reduced to be 0 < x <= 65535 and prime */
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OPT_NONE (vui.i_sar_height)
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OPT_NONE (vui.i_sar_width)
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/* 0=undef, 1=show, 2=crop */
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OPT_RANGE(vui.i_overscan, "overscan", 0, 2)
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/* 0=component 1=PAL 2=NTSC 3=SECAM 4=Mac 5=undef */
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OPT_RANGE(vui.i_vidformat, "vidformat", 0, 5)
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OPT_FLAG (vui.b_fullrange, "fullrange")
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/* 1=bt709 2=undef 4=bt470m 5=bt470bg 6=smpte170m 7=smpte240m 8=film */
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OPT_RANGE(vui.i_colorprim, "colorprim", 0, 8)
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/* 1..7 as above, 8=linear, 9=log100, 10=log316 */
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OPT_RANGE(vui.i_transfer, "transfer", 0, 10)
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/* 0=GBR 1=bt709 2=undef 4=fcc 5=bt470bg 6=smpte170m 7=smpte240m 8=YCgCo */
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OPT_RANGE(vui.i_colmatrix, "colmatrix", 0, 8)
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/* ??? */
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OPT_RANGE(vui.i_chroma_loc, "chroma_loc", 0, 5)
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OPT_NONE (i_fps_num)
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OPT_NONE (i_fps_den)
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/* Bitstream parameters */
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/* Maximum number of reference frames */
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OPT_RANGE(i_frame_reference, "frameref", 1, 16)
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/* Force an IDR keyframe at this interval */
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OPT_RANGE(i_keyint_max, "keyint", 1,999999)
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OPT_RANGE(i_keyint_max, "keyint_max", 1,999999)
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/* Scenecuts closer together than this are coded as I, not IDR. */
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OPT_RANGE(i_keyint_min, "keyint_min", 1,999999)
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/* How aggressively to insert extra I frames */
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OPT_RANGE(i_scenecut_threshold, "scenecut", -1, 100)
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/* How many B-frames between 2 reference pictures */
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OPT_RANGE(i_bframe, "bframes", 0, 16)
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/* Use adaptive B-frame encoding */
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OPT_FLAG (i_bframe_adaptive, "b_adapt")
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/* How often B-frames are used */
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OPT_RANGE(i_bframe_bias, "b_bias", -90, 100)
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/* Keep some B-frames as references */
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#if X264_BUILD >= 78
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OPT_RANGE(i_bframe_pyramid, "b_pyramid", 0, 2)
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#else
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OPT_FLAG (b_bframe_pyramid, "b_pyramid")
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#endif
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/* Use deblocking filter */
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OPT_FLAG (b_deblocking_filter, "deblock")
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/* [-6, 6] -6 light filter, 6 strong */
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OPT_RANGE(i_deblocking_filter_alphac0,"deblockalpha", -6, 6)
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/* [-6, 6] idem */
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OPT_RANGE(i_deblocking_filter_beta, "deblockbeta", -6, 6)
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/* Use context-adaptive binary arithmetic coding */
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OPT_FLAG (b_cabac, "cabac")
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/* Initial data for CABAC? */
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OPT_RANGE(i_cabac_init_idc, "cabac_init_idc", 0, 2)
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#if X264_BUILD >= 89
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/* Add NAL HRD parameters to the bitstream */
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OPT_FLAG (i_nal_hrd, "nal_hrd")
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#endif
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/* Enable interlaced encoding (--encode_fields) */
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OPT_NONE (b_interlaced)
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#if X264_BUILD >= 89
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/* First field (1=top, 0=bottom) (--encode_fields) */
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OPT_NONE (b_tff)
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#endif
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/* Quantization matrix selection: 0=flat 1=JVT 2=custom */
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OPT_RANGE(i_cqm_preset, "cqm", 0, 2)
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/* Custom quant matrix filename */
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OPT_STR (psz_cqm_file, "cqm_file")
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/* Quant matrix arrays set up by library */
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/* Logging */
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OPT_NONE (pf_log)
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OPT_NONE (p_log_private)
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OPT_NONE (i_log_level)
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OPT_NONE (b_visualize)
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/* Encoder analyser parameters */
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/* Partition selection (we always enable everything) */
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OPT_NONE (analyse.intra)
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OPT_NONE (analyse.inter)
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/* Allow integer 8x8 DCT transforms */
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OPT_FLAG (analyse.b_transform_8x8, "8x8dct")
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/* Implicit weighting for B-frames */
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OPT_FLAG (analyse.b_weighted_bipred, "weight_b")
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/* Spatial vs temporal MV prediction, 0=none 1=spatial 2=temporal 3=auto */
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OPT_RANGE(analyse.i_direct_mv_pred, "direct_pred", 0, 3)
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/* QP difference between chroma and luma */
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OPT_RANGE(analyse.i_chroma_qp_offset, "chroma_qp_offset",-12, 12)
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/* Motion estimation algorithm to use (X264_ME_*) 0=dia 1=hex 2=umh 3=esa*/
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OPT_RANGE(analyse.i_me_method, "me", 0, 3)
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/* Integer pixel motion estimation search range (from predicted MV) */
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OPT_RANGE(analyse.i_me_range, "me_range", 4, 64)
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/* Maximum length of a MV (in pixels), 32-2048 or -1=auto */
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OPT_RANGE(analyse.i_mv_range, "mv_range", -1, 2048)
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/* Subpixel motion estimation quality: 1=fast, 9=best */
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OPT_RANGE(analyse.i_subpel_refine, "subq", 1, 9)
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/* Chroma ME for subpel and mode decision in P-frames */
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OPT_FLAG (analyse.b_chroma_me, "chroma_me")
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/* Allow each MB partition in P-frames to have its own reference number */
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OPT_FLAG (analyse.b_mixed_references, "mixed_refs")
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/* Trellis RD quantization */
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OPT_RANGE(analyse.i_trellis, "trellis", 0, 2)
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/* Early SKIP detection on P-frames */
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OPT_FLAG (analyse.b_fast_pskip, "fast_pskip")
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/* Transform coefficient thresholding on P-frames */
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OPT_FLAG (analyse.b_dct_decimate, "dct_decimate")
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/* Noise reduction */
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OPT_RANGE(analyse.i_noise_reduction, "nr", 0, 65536)
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/* Compute PSNR stats, at the cost of a few % of CPU time */
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OPT_FLAG (analyse.b_psnr, "psnr")
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/* Compute SSIM stats, at the cost of a few % of CPU time */
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OPT_FLAG (analyse.b_ssim, "ssim")
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/* Rate control parameters */
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/* QP value for constant-quality encoding (to be a transcode option,
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* eventually--FIXME) */
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OPT_NONE (rc.i_qp_constant)
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/* Minimum allowed QP value */
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OPT_RANGE(rc.i_qp_min, "qp_min", 0, 51)
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/* Maximum allowed QP value */
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OPT_RANGE(rc.i_qp_max, "qp_max", 0, 51)
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/* Maximum QP difference between frames */
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OPT_RANGE(rc.i_qp_step, "qp_step", 0, 50)
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/* Bitrate (transcode -w) */
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OPT_NONE (rc.i_bitrate)
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/* Nominal QP for 1-pass VBR */
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OPT_RANGF(rc.f_rf_constant, "crf", 0, 51)
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/* Allowed variance from average bitrate */
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OPT_FLOAT(rc.f_rate_tolerance, "ratetol")
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/* Maximum local bitrate (kbit/s) */
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OPT_RANGE(rc.i_vbv_max_bitrate, "vbv_maxrate", 0,240000)
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/* Size of VBV buffer for CBR encoding */
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OPT_RANGE(rc.i_vbv_buffer_size, "vbv_bufsize", 0,240000)
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/* Initial occupancy of VBV buffer */
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OPT_RANGF(rc.f_vbv_buffer_init, "vbv_init", 0.0, 1.0)
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/* QP ratio between I and P frames */
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OPT_FLOAT(rc.f_ip_factor, "ip_ratio")
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/* QP ratio between P and B frames */
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OPT_FLOAT(rc.f_pb_factor, "pb_ratio")
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/* Complexity blurring before QP compression */
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OPT_RANGF(rc.f_complexity_blur, "cplx_blur", 0.0, 999.0)
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/* QP curve compression: 0.0 = constant bitrate, 1.0 = constant quality */
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OPT_RANGF(rc.f_qcompress, "qcomp", 0.0, 1.0)
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/* QP blurring after compression */
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OPT_RANGF(rc.f_qblur, "qblur", 0.0, 99.0)
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/* Rate control override zones (not supported by transcode) */
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OPT_NONE (rc.zones)
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OPT_NONE (rc.i_zones)
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/* Alternate method of specifying zones */
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OPT_STR (rc.psz_zones, "zones")
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/* Other parameters */
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OPT_FLAG (b_aud, "aud")
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OPT_NONE (b_repeat_headers)
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OPT_NONE (i_sps_id)
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/* Module configuration options (which do not affect encoding) */
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{"2pass_bug_workaround", &confdata.twopass_bug_workaround,
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TCCONF_TYPE_FLAG, 0, 0, 1},
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{"no2pass_bug_workaround", &confdata.twopass_bug_workaround,
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TCCONF_TYPE_FLAG, 0, 1, 0},
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/* Obsolete options (scheduled for future removal) */
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{"direct_8x8", &confdata.dummy_direct_8x8, TCCONF_TYPE_FLAG, 0, 0, 1},
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{"nodirect_8x8", &confdata.dummy_direct_8x8, TCCONF_TYPE_FLAG, 0, 1, 0},
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{"bidir_me", &confdata.dummy_bidir_me, TCCONF_TYPE_FLAG, 0, 0, 1},
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{"nobidir_me", &confdata.dummy_bidir_me, TCCONF_TYPE_FLAG, 0, 1, 0},
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{"brdo", &confdata.dummy_brdo, TCCONF_TYPE_FLAG, 0, 0, 1},
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{"nobrdo", &confdata.dummy_brdo, TCCONF_TYPE_FLAG, 0, 1, 0},
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{NULL}
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};
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/*************************************************************************/
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/*************************************************************************/
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/**
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* x264_log: Logging routine for x264 library.
|
||
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*
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||
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* Parameters:
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* userdata: Unused.
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||
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* level: x264 log level (X264_LOG_*).
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||
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* format: Log message format string.
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||
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* args: Log message format arguments.
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||
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* Return value:
|
||
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* None.
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||
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*/
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|
|
static void x264_log(void *userdata, int level, const char *format,
|
||
|
|
va_list args)
|
||
|
|
{
|
||
|
|
TCLogLevel tclevel;
|
||
|
|
char buf[TC_BUF_MAX];
|
||
|
|
|
||
|
|
if (!format)
|
||
|
|
return;
|
||
|
|
switch (level) {
|
||
|
|
case X264_LOG_ERROR:
|
||
|
|
tclevel = TC_LOG_ERR;
|
||
|
|
break;
|
||
|
|
case X264_LOG_WARNING:
|
||
|
|
tclevel = TC_LOG_WARN;
|
||
|
|
break;
|
||
|
|
case X264_LOG_INFO:
|
||
|
|
if (!(verbose & TC_INFO))
|
||
|
|
return;
|
||
|
|
tclevel = TC_LOG_INFO;
|
||
|
|
break;
|
||
|
|
case X264_LOG_DEBUG:
|
||
|
|
if (!(verbose & TC_DEBUG))
|
||
|
|
return;
|
||
|
|
tclevel = TC_LOG_MSG;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
tc_vsnprintf(buf, sizeof(buf), format, args);
|
||
|
|
buf[strcspn(buf,"\r\n")] = 0; /* delete trailing newline */
|
||
|
|
tc_log(tclevel, MOD_NAME, "%s", buf);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264params_set_multipass: Does all settings related to multipass.
|
||
|
|
*
|
||
|
|
* Parameters:
|
||
|
|
* pass: 0 = single pass
|
||
|
|
* 1 = 1st pass
|
||
|
|
* 2 = 2nd pass (final pass of multipass encoding)
|
||
|
|
* 3 = Nth pass (intermediate passes of multipass encoding)
|
||
|
|
* statsfilename: where to read and write multipass stat data.
|
||
|
|
* Return value:
|
||
|
|
* Always 0.
|
||
|
|
* Preconditions:
|
||
|
|
* params != NULL
|
||
|
|
* pass == 0 || statsfilename != NULL
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264params_set_multipass(x264_param_t *params,
|
||
|
|
int pass, const char *statsfilename)
|
||
|
|
{
|
||
|
|
/* Drop the const and hope that x264 treats it as const anyway */
|
||
|
|
params->rc.psz_stat_in = (char *)statsfilename;
|
||
|
|
params->rc.psz_stat_out = (char *)statsfilename;
|
||
|
|
|
||
|
|
switch (pass) {
|
||
|
|
default:
|
||
|
|
params->rc.b_stat_write = 0;
|
||
|
|
params->rc.b_stat_read = 0;
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
params->rc.b_stat_write = 1;
|
||
|
|
params->rc.b_stat_read = 0;
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
params->rc.b_stat_write = 0;
|
||
|
|
params->rc.b_stat_read = 1;
|
||
|
|
break;
|
||
|
|
case 3:
|
||
|
|
params->rc.b_stat_write = 1;
|
||
|
|
params->rc.b_stat_read = 1;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264params_check: Checks or corrects some strange combinations of
|
||
|
|
* settings done in x264params.
|
||
|
|
*
|
||
|
|
* Parameters:
|
||
|
|
* params: x264_param_t structure to check
|
||
|
|
* Return value:
|
||
|
|
* 0 on success, nonzero otherwise.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264params_check(x264_param_t *params)
|
||
|
|
{
|
||
|
|
/* don't know if these checks are really needed, but they won't hurt */
|
||
|
|
if (params->rc.i_qp_min > params->rc.i_qp_constant) {
|
||
|
|
params->rc.i_qp_min = params->rc.i_qp_constant;
|
||
|
|
}
|
||
|
|
if (params->rc.i_qp_max < params->rc.i_qp_constant) {
|
||
|
|
params->rc.i_qp_max = params->rc.i_qp_constant;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (params->rc.i_rc_method == X264_RC_ABR) {
|
||
|
|
if ((params->rc.i_vbv_max_bitrate > 0)
|
||
|
|
!= (params->rc.i_vbv_buffer_size > 0)
|
||
|
|
) {
|
||
|
|
tc_log_error(MOD_NAME,
|
||
|
|
"VBV requires both vbv_maxrate and vbv_bufsize.");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264params_set_by_vob: Handle transcode CLI and tc-autodetection
|
||
|
|
* dependent entries in x264_param_t.
|
||
|
|
*
|
||
|
|
* This method copies various values from transcodes vob_t structure to
|
||
|
|
* x264 $params. That means all settings that can be done through
|
||
|
|
* transcodes CLI or autodetection are applied to x264s $params here
|
||
|
|
* (and I hope nowhere else).
|
||
|
|
*
|
||
|
|
* Parameters:
|
||
|
|
* params: x264_param_t structure to apply changes to
|
||
|
|
* vob: transcodes vob_t structure to copy values from
|
||
|
|
* Return value:
|
||
|
|
* 0 on success, nonzero otherwise.
|
||
|
|
* Preconditions:
|
||
|
|
* params != NULL
|
||
|
|
* vob != NULL
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264params_set_by_vob(x264_param_t *params, const vob_t *vob)
|
||
|
|
{
|
||
|
|
/* Set video/bitstream parameters */
|
||
|
|
|
||
|
|
params->i_width = vob->ex_v_width;
|
||
|
|
params->i_height = vob->ex_v_height;
|
||
|
|
params->b_interlaced = (vob->encode_fields==TC_ENCODE_FIELDS_TOP_FIRST
|
||
|
|
|| vob->encode_fields==TC_ENCODE_FIELDS_BOTTOM_FIRST);
|
||
|
|
#if X264_BUILD >= 89
|
||
|
|
params->b_tff = (vob->encode_fields==TC_ENCODE_FIELDS_TOP_FIRST);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
if (params->rc.f_rf_constant != 0) {
|
||
|
|
params->rc.i_rc_method = X264_RC_CRF;
|
||
|
|
} else {
|
||
|
|
params->rc.i_rc_method = X264_RC_ABR;
|
||
|
|
}
|
||
|
|
params->rc.i_bitrate = vob->divxbitrate; /* what a name */
|
||
|
|
|
||
|
|
if (TC_NULL_MATCH == tc_frc_code_to_ratio(vob->ex_frc,
|
||
|
|
¶ms->i_fps_num,
|
||
|
|
¶ms->i_fps_den)
|
||
|
|
) {
|
||
|
|
if (vob->ex_fps > 29.9 && vob->ex_fps < 30) {
|
||
|
|
params->i_fps_num = 30000;
|
||
|
|
params->i_fps_den = 1001;
|
||
|
|
} else if (vob->ex_fps > 23.9 && vob->ex_fps < 24) {
|
||
|
|
params->i_fps_num = 24000;
|
||
|
|
params->i_fps_den = 1001;
|
||
|
|
} else if (vob->ex_fps > 59.9 && vob->ex_fps < 60) {
|
||
|
|
params->i_fps_num = 60000;
|
||
|
|
params->i_fps_den = 1001;
|
||
|
|
} else {
|
||
|
|
params->i_fps_num = vob->ex_fps * 1000;
|
||
|
|
params->i_fps_den = 1000;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (0 != tc_find_best_aspect_ratio(vob,
|
||
|
|
¶ms->vui.i_sar_width,
|
||
|
|
¶ms->vui.i_sar_height,
|
||
|
|
MOD_NAME)
|
||
|
|
) {
|
||
|
|
tc_log_error(MOD_NAME, "unable to find sane value for SAR");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Set logging function and acceleration flags */
|
||
|
|
params->pf_log = x264_log;
|
||
|
|
params->p_log_private = NULL;
|
||
|
|
params->cpu &= ~(X264_CPU_MMX
|
||
|
|
| X264_CPU_MMXEXT
|
||
|
|
| X264_CPU_SSE
|
||
|
|
| X264_CPU_SSE2
|
||
|
|
| X264_CPU_SSE3
|
||
|
|
| X264_CPU_SSSE3
|
||
|
|
| X264_CPU_SSE4
|
||
|
|
| X264_CPU_SSE42
|
||
|
|
| X264_CPU_LZCNT);
|
||
|
|
if (tc_accel & AC_MMX) params->cpu |= X264_CPU_MMX;
|
||
|
|
if (tc_accel & AC_MMXEXT) params->cpu |= X264_CPU_MMXEXT;
|
||
|
|
if (tc_accel & AC_SSE) params->cpu |= X264_CPU_SSE;
|
||
|
|
if (tc_accel & AC_SSE2) params->cpu |= X264_CPU_SSE2;
|
||
|
|
if (tc_accel & AC_SSE3) params->cpu |= X264_CPU_SSE3;
|
||
|
|
if (tc_accel & AC_SSSE3) params->cpu |= X264_CPU_SSSE3;
|
||
|
|
if (tc_accel & AC_SSE41) params->cpu |= X264_CPU_SSE4;
|
||
|
|
if (tc_accel & AC_SSE42) params->cpu |= X264_CPU_SSE42;
|
||
|
|
if (tc_accel & AC_SSE4A) params->cpu |= X264_CPU_LZCNT;
|
||
|
|
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* do_2pass_bug_workaround: Work around a bug present in at least x264
|
||
|
|
* versions 65 through 67 which causes invalid frame numbers to be written
|
||
|
|
* to the 2-pass logfile.
|
||
|
|
*
|
||
|
|
* Parameters:
|
||
|
|
* path: Logfile pathname.
|
||
|
|
* Return value:
|
||
|
|
* 0 on success, nonzero otherwise.
|
||
|
|
* Preconditions:
|
||
|
|
* path != NULL
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int do_2pass_bug_workaround(const char *path)
|
||
|
|
{
|
||
|
|
FILE *fp;
|
||
|
|
char *buffer;
|
||
|
|
long filesize, nread, offset;
|
||
|
|
long nframes;
|
||
|
|
|
||
|
|
fp = fopen(path, "r+");
|
||
|
|
if (!fp) {
|
||
|
|
tc_log_warn(MOD_NAME, "Failed to open 2-pass logfile '%s': %s",
|
||
|
|
path, strerror(errno));
|
||
|
|
goto error_return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* x264 treats the logfile as a single, semicolon-separated buffer
|
||
|
|
* rather than a series of lines, so do the same here. */
|
||
|
|
|
||
|
|
/* Read in the logfile data */
|
||
|
|
if (fseek(fp, 0, SEEK_END) != 0) {
|
||
|
|
tc_log_warn(MOD_NAME, "Seek to end of 2-pass logfile failed: %s",
|
||
|
|
strerror(errno));
|
||
|
|
goto error_close_file;
|
||
|
|
}
|
||
|
|
filesize = ftell(fp);
|
||
|
|
if (filesize < 0) {
|
||
|
|
tc_log_warn(MOD_NAME, "Get size of 2-pass logfile failed: %s",
|
||
|
|
strerror(errno));
|
||
|
|
goto error_close_file;
|
||
|
|
}
|
||
|
|
buffer = malloc(filesize);
|
||
|
|
if (!buffer) {
|
||
|
|
tc_log_warn(MOD_NAME, "No memory for 2-pass logfile buffer"
|
||
|
|
" (%ld bytes)", filesize);
|
||
|
|
goto error_close_file;
|
||
|
|
}
|
||
|
|
if (fseek(fp, 0, SEEK_SET) != 0) {
|
||
|
|
tc_log_warn(MOD_NAME, "Seek to beginning of 2-pass logfile failed: %s",
|
||
|
|
strerror(errno));
|
||
|
|
goto error_free_buffer;
|
||
|
|
}
|
||
|
|
nread = fread(buffer, 1, filesize, fp);
|
||
|
|
if (nread != filesize) {
|
||
|
|
tc_log_warn(MOD_NAME, "Short read on 2-pass logfile (expected %ld"
|
||
|
|
" bytes, got %ld)", filesize, nread);
|
||
|
|
goto error_free_buffer;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Count the number of frames */
|
||
|
|
nframes = 0;
|
||
|
|
offset = 0;
|
||
|
|
if (strncmp(buffer, "#options:", 9) == 0) { // just like x264
|
||
|
|
offset = strcspn(buffer, "\n") + 1;
|
||
|
|
}
|
||
|
|
for (; offset < filesize; offset++) {
|
||
|
|
if (buffer[offset] == ';') {
|
||
|
|
nframes++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Go through the frame list and check for out-of-range frame numbers */
|
||
|
|
offset = 0;
|
||
|
|
if (strncmp(buffer, "#options:", 9) == 0) {
|
||
|
|
offset = strcspn(buffer, "\n") + 1;
|
||
|
|
}
|
||
|
|
while (offset < filesize) {
|
||
|
|
long framenum;
|
||
|
|
char *s;
|
||
|
|
if (strncmp(&buffer[offset], "in:", 3) != 0) {
|
||
|
|
tc_log_warn(MOD_NAME, "Can't parse 2-pass logfile at offset %ld,"
|
||
|
|
" giving up.", offset);
|
||
|
|
offset = filesize; // Don't truncate the file
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
framenum = strtol(&buffer[offset+3], &s, 10);
|
||
|
|
if ((s && *s != ' ') || framenum < 0) {
|
||
|
|
tc_log_warn(MOD_NAME, "Can't parse 2-pass logfile at offset %ld,"
|
||
|
|
" giving up.", offset+3);
|
||
|
|
offset = filesize; // Don't truncate the file
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (framenum >= nframes) {
|
||
|
|
tc_log_warn(MOD_NAME, "Truncating corrupt x264 logfile:");
|
||
|
|
tc_log_warn(MOD_NAME, " in(%ld) >= nframes(%ld) at offset %ld",
|
||
|
|
framenum, nframes, offset);
|
||
|
|
tc_log_warn(MOD_NAME, "Please report this bug to the x264"
|
||
|
|
" developers.");
|
||
|
|
break; // Truncate the file here
|
||
|
|
}
|
||
|
|
offset += strcspn(&buffer[offset], ";");
|
||
|
|
offset += strspn(&buffer[offset], ";\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Truncate the file if the bug was detected */
|
||
|
|
if (offset < filesize) {
|
||
|
|
if (ftruncate(fileno(fp), offset) != 0) {
|
||
|
|
tc_log_warn(MOD_NAME, "Failed to truncate 2-pass logfile: %s",
|
||
|
|
strerror(errno));
|
||
|
|
goto error_free_buffer;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Successful return */
|
||
|
|
free(buffer);
|
||
|
|
fclose(fp);
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
/* Error handling */
|
||
|
|
error_free_buffer:
|
||
|
|
free(buffer);
|
||
|
|
error_close_file:
|
||
|
|
fclose(fp);
|
||
|
|
error_return:
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/* Module interface routines and data. */
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264_init: Initialize this instance of the module. See tcmodule-data.h
|
||
|
|
* for function details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264_init(TCModuleInstance *self, uint32_t features)
|
||
|
|
{
|
||
|
|
X264PrivateData *pd = NULL;
|
||
|
|
|
||
|
|
TC_MODULE_SELF_CHECK(self, "init");
|
||
|
|
TC_MODULE_INIT_CHECK(self, MOD_FEATURES, features);
|
||
|
|
|
||
|
|
pd = tc_malloc(sizeof(X264PrivateData));
|
||
|
|
if (!pd) {
|
||
|
|
tc_log_error(MOD_NAME, "init: out of memory!");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
pd->framenum = 0;
|
||
|
|
pd->enc = NULL;
|
||
|
|
|
||
|
|
if (verbose) {
|
||
|
|
tc_log_info(MOD_NAME, "%s %s", MOD_VERSION, MOD_CAP);
|
||
|
|
}
|
||
|
|
self->userdata = pd;
|
||
|
|
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264_fini: Clean up after this instance of the module. See
|
||
|
|
* tcmodule-data.h for function details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264_fini(TCModuleInstance *self)
|
||
|
|
{
|
||
|
|
X264PrivateData *pd = NULL;
|
||
|
|
|
||
|
|
TC_MODULE_SELF_CHECK(self, "fini");
|
||
|
|
|
||
|
|
pd = self->userdata;
|
||
|
|
|
||
|
|
if (pd->enc) {
|
||
|
|
x264_encoder_close(pd->enc);
|
||
|
|
pd->enc = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
tc_free(self->userdata);
|
||
|
|
self->userdata = NULL;
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264_configure: Configure this instance of the module. See
|
||
|
|
* tcmodule-data.h for function details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264_configure(TCModuleInstance *self,
|
||
|
|
const char *options, vob_t *vob)
|
||
|
|
{
|
||
|
|
X264PrivateData *pd = NULL;
|
||
|
|
char *s;
|
||
|
|
|
||
|
|
TC_MODULE_SELF_CHECK(self, "configure");
|
||
|
|
|
||
|
|
pd = self->userdata;
|
||
|
|
|
||
|
|
pd->flush_flag = vob->encoder_flush;
|
||
|
|
|
||
|
|
/* Initialize parameter block */
|
||
|
|
memset(&confdata, 0, sizeof(confdata));
|
||
|
|
x264_param_default(&confdata.x264params);
|
||
|
|
|
||
|
|
/* Parameters not (yet) settable via options: */
|
||
|
|
confdata.x264params.analyse.intra = ~0;
|
||
|
|
confdata.x264params.analyse.inter = ~0;
|
||
|
|
|
||
|
|
/* Watch for obsolete options being set */
|
||
|
|
confdata.dummy_direct_8x8 = -1;
|
||
|
|
confdata.dummy_bidir_me = -1;
|
||
|
|
confdata.dummy_brdo = -1;
|
||
|
|
|
||
|
|
/* Read settings from configuration file */
|
||
|
|
module_read_config(X264_CONFIG_FILE, NULL, conf, MOD_NAME);
|
||
|
|
|
||
|
|
/* Parse options given in -y option string (format:
|
||
|
|
* "name1=value1:name2=value2:...") */
|
||
|
|
for (s = (vob->ex_v_string ? strtok(vob->ex_v_string,":") : NULL);
|
||
|
|
s != NULL;
|
||
|
|
s = strtok(NULL,":")
|
||
|
|
) {
|
||
|
|
if (!module_read_config_line(s, conf, MOD_NAME)) {
|
||
|
|
tc_log_error(MOD_NAME, "Error parsing module options");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Complain about obsolete options being set */
|
||
|
|
if (confdata.dummy_direct_8x8 != -1) {
|
||
|
|
tc_log_warn(MOD_NAME, "Option direct_8x8 is obsolete, and is now"
|
||
|
|
" always active.");
|
||
|
|
}
|
||
|
|
if (confdata.dummy_bidir_me != -1) {
|
||
|
|
tc_log_warn(MOD_NAME,
|
||
|
|
"Option bidir_me is obsolete in x264 version 65.\n"
|
||
|
|
" bidir_me will be automatically applied when"
|
||
|
|
" subq >= 5.");
|
||
|
|
}
|
||
|
|
if (confdata.dummy_brdo != -1) {
|
||
|
|
tc_log_warn(MOD_NAME,
|
||
|
|
"Option bidir_me is obsolete in x264 version 65.\n"
|
||
|
|
" brdo will be automatically applied when subq >= 7.");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Save multipass logfile name if 2-pass bug workaround was requested */
|
||
|
|
if (confdata.twopass_bug_workaround
|
||
|
|
&& (vob->divxmultipass == 1 || vob->divxmultipass == 3)
|
||
|
|
) {
|
||
|
|
const size_t strsize = strlen(vob->divxlogfile) + 1;
|
||
|
|
if (strsize > sizeof(pd->twopass_log_path)) {
|
||
|
|
tc_log_error(MOD_NAME, "2-pass logfile path too long.\n"
|
||
|
|
" Use a shorter pathname or disable the"
|
||
|
|
" 2pass_bug_workaround option.");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
ac_memcpy(pd->twopass_log_path, vob->divxlogfile, strsize);
|
||
|
|
pd->twopass_bug_workaround = 1;
|
||
|
|
} else {
|
||
|
|
pd->twopass_bug_workaround = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Apply extra settings to $x264params */
|
||
|
|
if (0 != x264params_set_multipass(&confdata.x264params, vob->divxmultipass,
|
||
|
|
vob->divxlogfile)
|
||
|
|
) {
|
||
|
|
tc_log_error(MOD_NAME, "Failed to apply multipass settings.");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Copy parameter block to module private data */
|
||
|
|
ac_memcpy(&pd->x264params, &confdata.x264params, sizeof(pd->x264params));
|
||
|
|
|
||
|
|
/* Apply transcode CLI and autodetected values from $vob to
|
||
|
|
* $x264params. This is done as the last step to make transcode CLI
|
||
|
|
* override any settings done before. */
|
||
|
|
if (0 != x264params_set_by_vob(&pd->x264params, vob)) {
|
||
|
|
tc_log_error(MOD_NAME, "Failed to evaluate vob_t values.");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Test if the set parameters fit together. */
|
||
|
|
if (0 != x264params_check(&pd->x264params)) {
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Now we've set all parameters gathered from transcode and the config
|
||
|
|
* file to $x264params. Let's give some status report and finally open
|
||
|
|
* the encoder. */
|
||
|
|
if (verbose >= TC_DEBUG) {
|
||
|
|
module_print_config(conf, MOD_NAME);
|
||
|
|
}
|
||
|
|
|
||
|
|
pd->enc = x264_encoder_open(&pd->x264params);
|
||
|
|
if (!pd->enc) {
|
||
|
|
tc_log_error(MOD_NAME, "x264_encoder_open() returned NULL - sorry.");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264_stop: Reset this instance of the module. See tcmodule-data.h for
|
||
|
|
* function details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264_stop(TCModuleInstance *self)
|
||
|
|
{
|
||
|
|
X264PrivateData *pd = NULL;
|
||
|
|
|
||
|
|
TC_MODULE_SELF_CHECK(self, "stop");
|
||
|
|
|
||
|
|
pd = self->userdata;
|
||
|
|
|
||
|
|
if (pd->enc) {
|
||
|
|
x264_encoder_close(pd->enc);
|
||
|
|
pd->enc = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pd->twopass_bug_workaround) {
|
||
|
|
do_2pass_bug_workaround(pd->twopass_log_path);
|
||
|
|
}
|
||
|
|
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264_inspect: Return the value of an option in this instance of the
|
||
|
|
* module. See tcmodule-data.h for function details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264_inspect(TCModuleInstance *self,
|
||
|
|
const char *param, const char **value)
|
||
|
|
{
|
||
|
|
X264PrivateData *pd = NULL;
|
||
|
|
static char buf[TC_BUF_MAX];
|
||
|
|
|
||
|
|
TC_MODULE_SELF_CHECK(self, "inspect");
|
||
|
|
TC_MODULE_SELF_CHECK(param, "inspect");
|
||
|
|
TC_MODULE_SELF_CHECK(value, "inspect");
|
||
|
|
|
||
|
|
pd = self->userdata;
|
||
|
|
|
||
|
|
if (optstr_lookup(param, "help")) {
|
||
|
|
tc_snprintf(buf, sizeof(buf),
|
||
|
|
"Overview:\n"
|
||
|
|
" Encodes video in h.264 format using the x264 library.\n"
|
||
|
|
"Options available:\n"
|
||
|
|
" All options in x264.cfg can be specified on the command line\n"
|
||
|
|
" using the format: -y x264=name1=value1:name2=value2:...\n");
|
||
|
|
*value = buf;
|
||
|
|
}
|
||
|
|
/* FIXME: go through the option list to find a match to param */
|
||
|
|
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* x264_encode_video: Decode a frame of data. See tcmodule-data.h for
|
||
|
|
* function details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static int x264_encode_video(TCModuleInstance *self,
|
||
|
|
vframe_list_t *inframe, vframe_list_t *outframe)
|
||
|
|
{
|
||
|
|
X264PrivateData *pd;
|
||
|
|
x264_nal_t *nal;
|
||
|
|
x264_picture_t pic, pic_out;
|
||
|
|
int nnal, i, ret;
|
||
|
|
|
||
|
|
TC_MODULE_SELF_CHECK(self, "encode_video");
|
||
|
|
|
||
|
|
pd = self->userdata;
|
||
|
|
|
||
|
|
pd->framenum++;
|
||
|
|
|
||
|
|
memset(&pic, 0, sizeof(pic));
|
||
|
|
memset(&pic_out, 0, sizeof(pic_out));
|
||
|
|
|
||
|
|
if (inframe == NULL) {
|
||
|
|
outframe->video_len = 0;
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
pic.img.i_csp = X264_CSP_I420;
|
||
|
|
pic.img.i_plane = 3;
|
||
|
|
|
||
|
|
pic.img.plane[0] = inframe->video_buf;
|
||
|
|
pic.img.i_stride[0] = inframe->v_width;
|
||
|
|
|
||
|
|
pic.img.plane[1] = pic.img.plane[0]
|
||
|
|
+ inframe->v_width*inframe->v_height;
|
||
|
|
pic.img.i_stride[1] = inframe->v_width / 2;
|
||
|
|
|
||
|
|
pic.img.plane[2] = pic.img.plane[1]
|
||
|
|
+ (inframe->v_width/2)*(inframe->v_height/2);
|
||
|
|
pic.img.i_stride[2] = inframe->v_width / 2;
|
||
|
|
|
||
|
|
|
||
|
|
pic.i_type = X264_TYPE_AUTO;
|
||
|
|
pic.i_qpplus1 = 0;
|
||
|
|
/* FIXME: Is this pts-handling ok? I don't have a clue how
|
||
|
|
* PTS/DTS handling works. Does it matter, when no muxing is
|
||
|
|
* done? */
|
||
|
|
pic.i_pts = (int64_t) pd->framenum * pd->x264params.i_fps_den;
|
||
|
|
|
||
|
|
ret = x264_encoder_encode(pd->enc, &nal, &nnal, &pic, &pic_out);
|
||
|
|
#if X264_BUILD >= 76
|
||
|
|
if (ret < 0) {
|
||
|
|
#else
|
||
|
|
if (ret != 0) {
|
||
|
|
#endif
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
outframe->video_len = 0;
|
||
|
|
for (i = 0; i < nnal; i++) {
|
||
|
|
int size = outframe->video_size - outframe->video_len;
|
||
|
|
if (size <= 0) {
|
||
|
|
tc_log_error(MOD_NAME, "output buffer overflow");
|
||
|
|
return TC_ERROR;
|
||
|
|
}
|
||
|
|
#if X264_BUILD >= 76
|
||
|
|
ac_memcpy(outframe->video_buf + outframe->video_len, nal[i].p_payload, nal[i].i_payload);
|
||
|
|
outframe->video_len += nal[i].i_payload;
|
||
|
|
#else
|
||
|
|
ret = x264_nal_encode(outframe->video_buf + outframe->video_len,
|
||
|
|
&size, 1, &nal[i]);
|
||
|
|
if (ret < 0 || size > outframe->video_size - outframe->video_len) {
|
||
|
|
tc_log_error(MOD_NAME, "output buffer overflow");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
outframe->video_len += size;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/* FIXME: ok, that sucks. How to reformat it ina better way? -- fromani */
|
||
|
|
if ((pic_out.i_type == X264_TYPE_IDR)
|
||
|
|
|| (pic_out.i_type == X264_TYPE_I
|
||
|
|
&& pd->x264params.i_frame_reference == 1
|
||
|
|
&& !pd->x264params.i_bframe)) {
|
||
|
|
outframe->attributes |= TC_FRAME_IS_KEYFRAME;
|
||
|
|
}
|
||
|
|
|
||
|
|
return TC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
static const TCCodecID x264_codecs_in[] = { TC_CODEC_YUV420P, TC_CODEC_ERROR };
|
||
|
|
static const TCCodecID x264_codecs_out[] = { TC_CODEC_H264, TC_CODEC_ERROR };
|
||
|
|
TC_MODULE_CODEC_FORMATS(x264);
|
||
|
|
|
||
|
|
TC_MODULE_INFO(x264);
|
||
|
|
|
||
|
|
static const TCModuleClass x264_class = {
|
||
|
|
TC_MODULE_CLASS_HEAD(x264),
|
||
|
|
|
||
|
|
.init = x264_init,
|
||
|
|
.fini = x264_fini,
|
||
|
|
.configure = x264_configure,
|
||
|
|
.stop = x264_stop,
|
||
|
|
.inspect = x264_inspect,
|
||
|
|
|
||
|
|
.encode_video = x264_encode_video,
|
||
|
|
};
|
||
|
|
|
||
|
|
TC_MODULE_ENTRY_POINT(x264)
|
||
|
|
|
||
|
|
/*************************************************************************/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Local variables:
|
||
|
|
* c-file-style: "stroustrup"
|
||
|
|
* c-file-offsets: ((case-label . *) (statement-case-intro . *))
|
||
|
|
* indent-tabs-mode: nil
|
||
|
|
* End:
|
||
|
|
*
|
||
|
|
* vim: expandtab shiftwidth=4:
|
||
|
|
*/
|
||
|
|
|