X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=ffmpeg_opt.c;h=a356cadab4dbdd150a6888157e1271f557fe8cca;hb=8534c8c77a509987d6b63ed3b65155c3561b8583;hp=f7f65535d2021407caf3ae525aa42376502f5256;hpb=2a227fe8799e26fe3c8862438a163f72dca017a5;p=ffmpeg

diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index f7f65535d20..a356cadab4d 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -231,6 +231,7 @@ static int opt_map(void *optctx, const char *opt, const char *arg)
     int sync_file_idx = -1, sync_stream_idx = 0;
     char *p, *sync;
     char *map;
+    char *allow_unused;
 
     if (*arg == '-') {
         negative = 1;
@@ -275,6 +276,8 @@ static int opt_map(void *optctx, const char *opt, const char *arg)
             exit_program(1);
         }
     } else {
+        if (allow_unused = strchr(map, '?'))
+            *allow_unused = 0;
         file_idx = strtol(map, &p, 0);
         if (file_idx >= nb_input_files || file_idx < 0) {
             av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
@@ -312,8 +315,13 @@ static int opt_map(void *optctx, const char *opt, const char *arg)
     }
 
     if (!m) {
-        av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
-        exit_program(1);
+        if (allow_unused) {
+            av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
+        } else {
+            av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
+                                       "To ignore this, add a trailing '?' to the map.\n", arg);
+            exit_program(1);
+        }
     }
 
     av_freep(&map);
@@ -1204,6 +1212,7 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
         uint32_t tag = strtol(codec_tag, &next, 0);
         if (*next)
             tag = AV_RL32(codec_tag);
+        ost->st->codec->codec_tag =
         ost->enc_ctx->codec_tag = tag;
     }
 
@@ -1918,7 +1927,7 @@ static int open_output_file(OptionsContext *o, const char *filename)
             for (i = 0; i < nb_input_streams; i++) {
                 int new_area;
                 ist = input_streams[i];
-                new_area = ist->st->codec->width * ist->st->codec->height;
+                new_area = ist->st->codec->width * ist->st->codec->height + 100000000*!!ist->st->codec_info_nb_frames;
                 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
                     new_area = 1;
                 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&