X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=ffmpeg_opt.c;h=75c80e792e2847c98a014c61a6bd2f789a15bb01;hb=066b92e91d678f500c64c947d86cd8bf73ee6c61;hp=39c5f49d67296bb32a78c3cefd63589d64ea1b0d;hpb=b12eacb3837cad2daaeda1f77ceb1045bca68789;p=ffmpeg

diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index 39c5f49d672..75c80e792e2 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -110,6 +110,7 @@ static int no_file_overwrite  = 0;
 static int do_psnr            = 0;
 static int input_sync;
 static int override_ffserver  = 0;
+static int input_stream_potentially_available = 0;
 
 static void uninit_options(OptionsContext *o)
 {
@@ -918,7 +919,7 @@ static int open_input_file(OptionsContext *o, const char *filename)
 
     timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
     /* add the stream start time */
-    if (ic->start_time != AV_NOPTS_VALUE)
+    if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
         timestamp += ic->start_time;
 
     /* if seeking requested, we execute it */
@@ -1008,6 +1009,8 @@ static int open_input_file(OptionsContext *o, const char *filename)
         av_dict_free(&opts[i]);
     av_freep(&opts);
 
+    input_stream_potentially_available = 1;
+
     return 0;
 }
 
@@ -2035,8 +2038,8 @@ loop_end:
         ost->stream_copy               = 0;
         ost->attachment_filename       = o->attachments[i];
         ost->finished                  = 1;
-        ost->enc_ctx->extradata      = attachment;
-        ost->enc_ctx->extradata_size = len;
+        ost->st->codec->extradata      = attachment;
+        ost->st->codec->extradata_size = len;
 
         p = strrchr(o->attachments[i], '/');
         av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
@@ -2104,6 +2107,12 @@ loop_end:
         }
     }
 
+    if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
+        av_log(NULL, AV_LOG_ERROR,
+               "No input streams but output needs an input stream\n");
+        exit_program(1);
+    }
+
     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
         /* test if it already exists to avoid losing precious files */
         assert_file_overwrite(filename);
@@ -2608,6 +2617,9 @@ static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
     filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
     if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
         return AVERROR(ENOMEM);
+
+    input_stream_potentially_available = 1;
+
     return 0;
 }
 
@@ -2622,6 +2634,9 @@ static int opt_filter_complex_script(void *optctx, const char *opt, const char *
         return AVERROR(ENOMEM);
     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
     filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
+
+    input_stream_potentially_available = 1;
+
     return 0;
 }
 
@@ -2850,6 +2865,9 @@ const OptionDef options[] = {
     { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
         "set the start time offset", "time_off" },
+    { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
+                        OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
+        "enable/disable seeking by timestamp with -ss" },
     { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
                         OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
         "enable/disable accurate seeking with -ss" },
@@ -3025,7 +3043,7 @@ const OptionDef options[] = {
                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
         "top=1/bottom=0/auto=-1 field first", "" },
     { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
-                      OPT_OUTPUT,                                                { .func_arg = opt_old2new },
+                      OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
         "force video tag/fourcc", "fourcc/tag" },
     { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
         "show QP histogram" },