mirror of https://github.com/FFmpeg/FFmpeg.git
with minor changes from me Originally committed as revision 4019 to svn://svn.ffmpeg.org/ffmpeg/trunkpull/126/head
Michael Niedermayer
20 years ago
parent
6867a90b41
commit
40c5fa2689
9 changed files with 3 additions and 416 deletions
@ -1,208 +0,0 @@ |
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/*
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* LGPL |
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*/ |
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/**
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* @file opts.c |
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* options parser. |
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* typical parsed command line: |
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* msmpeg4:bitrate=720000:qmax=16 |
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* |
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*/ |
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#include "avcodec.h" |
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const AVOption avoptions_common[] = { |
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AVOPTION_CODEC_FLAG("bit_exact", "use only bit-exact stuff", flags, CODEC_FLAG_BITEXACT, 0), |
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AVOPTION_CODEC_FLAG("mm_force", "force mm flags", dsp_mask, FF_MM_FORCE, 0), |
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#ifdef HAVE_MMX |
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AVOPTION_CODEC_FLAG("mm_mmx", "mask MMX feature", dsp_mask, FF_MM_MMX, 0), |
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AVOPTION_CODEC_FLAG("mm_3dnow", "mask 3DNow feature", dsp_mask, FF_MM_3DNOW, 0), |
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AVOPTION_CODEC_FLAG("mm_mmxext", "mask MMXEXT (MMX2) feature", dsp_mask, FF_MM_MMXEXT, 0), |
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AVOPTION_CODEC_FLAG("mm_sse", "mask SSE feature", dsp_mask, FF_MM_SSE, 0), |
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AVOPTION_CODEC_FLAG("mm_sse2", "mask SSE2 feature", dsp_mask, FF_MM_SSE2, 0), |
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#endif |
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AVOPTION_END() |
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}; |
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const AVOption avoptions_workaround_bug[] = { |
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AVOPTION_CODEC_FLAG("bug_autodetect", "workaround bug autodetection", workaround_bugs, FF_BUG_AUTODETECT, 1), |
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AVOPTION_CODEC_FLAG("bug_old_msmpeg4", "workaround old msmpeg4 bug", workaround_bugs, FF_BUG_OLD_MSMPEG4, 0), |
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AVOPTION_CODEC_FLAG("bug_xvid_ilace", "workaround XviD interlace bug", workaround_bugs, FF_BUG_XVID_ILACE, 0), |
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AVOPTION_CODEC_FLAG("bug_ump4", "workaround ump4 bug", workaround_bugs, FF_BUG_UMP4, 0), |
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AVOPTION_CODEC_FLAG("bug_no_padding", "workaround padding bug", workaround_bugs, FF_BUG_NO_PADDING, 0), |
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AVOPTION_CODEC_FLAG("bug_ac_vlc", "workaround ac VLC bug", workaround_bugs, FF_BUG_AC_VLC, 0), |
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AVOPTION_CODEC_FLAG("bug_qpel_chroma", "workaround qpel chroma bug", workaround_bugs, FF_BUG_QPEL_CHROMA, 0), |
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AVOPTION_CODEC_FLAG("bug_std_qpel", "workaround std qpel bug", workaround_bugs, FF_BUG_STD_QPEL, 0), |
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AVOPTION_CODEC_FLAG("bug_qpel_chroma2", "workaround qpel chroma2 bug", workaround_bugs, FF_BUG_QPEL_CHROMA2, 0), |
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AVOPTION_CODEC_FLAG("bug_direct_blocksize", "workaround direct blocksize bug", workaround_bugs, FF_BUG_DIRECT_BLOCKSIZE, 0), |
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AVOPTION_END() |
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}; |
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/* avoid compatibility problems by redefining it */ |
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static int av_strcasecmp(const char *s1, const char *s2) |
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{ |
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signed char val; |
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for(;;) { |
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val = toupper(*s1) - toupper(*s2); |
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if (val != 0) |
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break; |
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if (*s1 != '\0') |
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break; |
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s1++; |
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s2++; |
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} |
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return val; |
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} |
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static int parse_bool(const AVOption *c, char *s, int *var) |
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{ |
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int b = 1; /* by default -on- when present */ |
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if (s) { |
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if (!av_strcasecmp(s, "off") || !av_strcasecmp(s, "false") |
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|| !strcmp(s, "0")) |
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b = 0; |
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else if (!av_strcasecmp(s, "on") || !av_strcasecmp(s, "true") |
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|| !strcmp(s, "1")) |
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b = 1; |
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else |
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return -1; |
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} |
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if (c->type == FF_OPT_TYPE_FLAG) { |
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if (b) |
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*var |= (int)c->min; |
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else |
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*var &= ~(int)c->min; |
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} else |
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*var = b; |
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return 0; |
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} |
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static int parse_double(const AVOption *c, char *s, double *var) |
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{ |
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double d; |
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if (!s) |
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return -1; |
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d = atof(s); |
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if (c->min != c->max) { |
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if (d < c->min || d > c->max) { |
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av_log(NULL, AV_LOG_ERROR, "Option: %s double value: %f out of range <%f, %f>\n", |
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c->name, d, c->min, c->max); |
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return -1; |
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} |
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} |
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*var = d; |
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return 0; |
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} |
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static int parse_int(const AVOption* c, char* s, int* var) |
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{ |
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int i; |
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if (!s) |
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return -1; |
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i = atoi(s); |
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if (c->min != c->max) { |
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if (i < (int)c->min || i > (int)c->max) { |
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av_log(NULL, AV_LOG_ERROR, "Option: %s integer value: %d out of range <%d, %d>\n", |
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c->name, i, (int)c->min, (int)c->max); |
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return -1; |
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} |
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} |
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*var = i; |
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return 0; |
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} |
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static int parse_string(const AVOption *c, char *s, void* strct, char **var) |
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{ |
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if (!s) |
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return -1; |
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if (c->type == FF_OPT_TYPE_RCOVERRIDE) { |
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int sf, ef, qs; |
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float qf; |
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if (sscanf(s, "%d,%d,%d,%f", &sf, &ef, &qs, &qf) == 4 && sf < ef) { |
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AVCodecContext *avctx = (AVCodecContext *) strct; |
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RcOverride *o; |
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avctx->rc_override = av_realloc(avctx->rc_override, |
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sizeof(RcOverride) * (avctx->rc_override_count + 1)); |
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o = avctx->rc_override + avctx->rc_override_count++; |
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o->start_frame = sf; |
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o->end_frame = ef; |
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o->qscale = qs; |
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o->quality_factor = qf; |
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//printf("parsed Rc: %d,%d,%d,%f (%d)\n", sf,ef,qs,qf, avctx->rc_override_count);
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} else { |
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av_log(NULL, AV_LOG_ERROR, "incorrect/unparsable Rc: \"%s\"\n", s); |
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} |
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} else |
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*var = av_strdup(s); |
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return 0; |
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} |
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int avoption_parse(void* strct, const AVOption* list, const char *opts) |
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{ |
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int r = 0; |
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char* dopts = av_strdup(opts); |
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if (dopts) { |
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char *str = dopts; |
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while (str && *str && r == 0) { |
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const AVOption *stack[FF_OPT_MAX_DEPTH]; |
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const AVOption *c = list; |
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int depth = 0; |
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char* e = strchr(str, ':'); |
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char* p; |
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if (e) |
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*e++ = 0; |
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p = strchr(str, '='); |
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if (p) |
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*p++ = 0; |
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// going through option structures
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for (;;) { |
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if (!c->name) { |
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if (c->help) { |
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stack[depth++] = c; |
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c = (const AVOption*) c->help; |
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assert(depth > FF_OPT_MAX_DEPTH); |
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} else { |
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if (depth == 0) |
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break; // finished
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c = stack[--depth]; |
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c++; |
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} |
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} else { |
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if (!strcmp(c->name, str)) { |
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void* ptr = (char*)strct + c->offset; |
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switch (c->type & FF_OPT_TYPE_MASK) { |
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case FF_OPT_TYPE_BOOL: |
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r = parse_bool(c, p, (int*)ptr); |
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break; |
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case FF_OPT_TYPE_DOUBLE: |
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r = parse_double(c, p, (double*)ptr); |
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break; |
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case FF_OPT_TYPE_INT: |
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r = parse_int(c, p, (int*)ptr); |
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break; |
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case FF_OPT_TYPE_STRING: |
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r = parse_string(c, p, strct, (char**)ptr); |
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break; |
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default: |
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assert(0 == 1); |
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} |
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} |
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c++; |
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} |
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} |
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str = e; |
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} |
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av_free(dopts); |
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} |
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return r; |
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} |
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