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