-static int opt_frame_pix_fmt(const char *opt, const char *arg)
-{
- if (strcmp(arg, "list")) {
- frame_pix_fmt = av_get_pix_fmt(arg);
- if (frame_pix_fmt == PIX_FMT_NONE) {
- fprintf(stderr, "Unknown pixel format requested: %s\n", arg);
- return AVERROR(EINVAL);
- }
- } else {
- show_pix_fmts();
- exit_program(0);
- }
- return 0;
-}
-
-static int opt_frame_aspect_ratio(const char *opt, const char *arg)
-{
- int x = 0, y = 0;
- double ar = 0;
- const char *p;
- char *end;
-
- p = strchr(arg, ':');
- if (p) {
- x = strtol(arg, &end, 10);
- if (end == p)
- y = strtol(end+1, &end, 10);
- if (x > 0 && y > 0)
- ar = (double)x / (double)y;
- } else
- ar = strtod(arg, NULL);
-
- if (!ar) {
- fprintf(stderr, "Incorrect aspect ratio specification.\n");
- return AVERROR(EINVAL);
- }
- frame_aspect_ratio = ar;
- return 0;
-}
-
-static int opt_metadata(const char *opt, const char *arg)
-{
- char *mid= strchr(arg, '=');
-
- if(!mid){
- fprintf(stderr, "Missing =\n");
- exit_program(1);
- }
- *mid++= 0;
-
- av_dict_set(&metadata, arg, mid, 0);
-
- return 0;
-}
-
-static int opt_qscale(const char *opt, const char *arg)
-{
- video_qscale = parse_number_or_die(opt, arg, OPT_FLOAT, 0, 255);
- if (video_qscale == 0) {
- fprintf(stderr, "qscale must be > 0.0 and <= 255\n");
- return AVERROR(EINVAL);
- }
- return 0;
-}
-
-static int opt_top_field_first(const char *opt, const char *arg)
-{
- top_field_first = parse_number_or_die(opt, arg, OPT_INT, 0, 1);
- return 0;
-}
-
-static int opt_thread_count(const char *opt, const char *arg)
-{
- thread_count= parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
-#if !HAVE_THREADS
- if (verbose >= 0)
- fprintf(stderr, "Warning: not compiled with thread support, using thread emulation\n");
-#endif
- return 0;
-}
-
-static int opt_audio_sample_fmt(const char *opt, const char *arg)
-{
- if (strcmp(arg, "list")) {
- audio_sample_fmt = av_get_sample_fmt(arg);
- if (audio_sample_fmt == AV_SAMPLE_FMT_NONE) {
- av_log(NULL, AV_LOG_ERROR, "Invalid sample format '%s'\n", arg);
- return AVERROR(EINVAL);
- }
- } else {
- int i;
- char fmt_str[128];
- for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
- printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
- exit_program(0);
- }
- return 0;
-}
-
-static int opt_audio_rate(const char *opt, const char *arg)
-{
- audio_sample_rate = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
- return 0;
-}
-
-static int opt_audio_channels(const char *opt, const char *arg)
-{
- audio_channels = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
- return 0;
-}
-
-static int opt_codec(const char *opt, const char *arg)
-{
- return av_dict_set(&codec_names, opt, arg, 0);
-}
-
-static int opt_audio_codec(const char *opt, const char *arg)
-{
- return opt_codec("codec:a", arg);
-}
-
-static int opt_video_codec(const char *opt, const char *arg)
-{
- return opt_codec("codec:v", arg);
-}
-
-static int opt_subtitle_codec(const char *opt, const char *arg)
-{
- return opt_codec("codec:s", arg);
-}
-
-static int opt_data_codec(const char *opt, const char *arg)
-{
- return opt_codec("codec:d", arg);
-}
-
-static int opt_codec_tag(const char *opt, const char *arg)
-{
- char *tail;
- uint32_t *codec_tag;
-
- codec_tag = !strcmp(opt, "atag") ? &audio_codec_tag :
- !strcmp(opt, "vtag") ? &video_codec_tag :
- !strcmp(opt, "stag") ? &subtitle_codec_tag : NULL;
- if (!codec_tag)
- return -1;
-
- *codec_tag = strtol(arg, &tail, 0);
- if (!tail || *tail)
- *codec_tag = AV_RL32(arg);
-
- return 0;
-}
-
-static int opt_map(const char *opt, const char *arg)