Changeset 387 for libmpc/trunk/mpcchap/mpcchap.c

Timestamp:

04/01/08 23:04:22 (17 years ago)

Author:

r2d

Message:

• mpcchap can now dump chapters

File:

• libmpc/trunk/mpcchap/mpcchap.c (modified) (5 diffs)

libmpc/trunk/mpcchap/mpcchap.c

@@ -38 +38 @@
 #include "iniparser.h"
 
-// #include <sys/types.h>
 #include <sys/stat.h>
-// #include <unistd.h> 
 
 // tags.c
@@ -57 +55 @@
 static void usage(const char *exename)
 {
-        printf("Usage: %s <infile.mpc> <chapterfile.ini>\n", exename);
-}
-
-int main(int argc, char **argv)
-{
-        mpc_reader reader;
-        mpc_demux* demux;
-        mpc_streaminfo si;
-        char * mpc_file, * chap_file;
+        printf(
+                "Usage: %s <infile.mpc> <chapterfile.ini>\n"
+                "   if chapterfile.ini exists, chapter tags in infile.mpc will be\n"
+                "   replaced by those from chapterfile.ini, else chapters will be\n"
+                "   dumped to chapterfile.ini\n"
+                "   chapterfile.ini is something like :\n"
+                "       [chapter_start_sample]\n"
+                "       SomeKey=Some Value\n"
+                "       SomeOtherKey=Some Other Value\n"
+                "       [other_chapter_start]\n"
+                "       YouKnowWhatKey=I think you start to understand ...\n"
+                , exename);
+}
+
+mpc_status add_chaps(char * mpc_file, char * chap_file, mpc_demux * demux, mpc_streaminfo * si)
+{
+        struct stat stbuf;
         FILE * in_file;
-        mpc_status err;
-        int i;
-
-        if (argc != 3)
-                usage(argv[0]);
-        
-        mpc_file = argv[1];
-        chap_file = argv[2];
-
-        err = mpc_reader_init_stdio(&reader, argv[1]);
-        if(err < 0) return !MPC_STATUS_OK;
-
-        demux = mpc_demux_init(&reader);
-        if(!demux) return !MPC_STATUS_OK;
-        mpc_demux_get_info(demux,  &si);
-
-        if (si.stream_version < 8) {
-                fprintf(stderr, "this file cannot be edited, please convert it first to sv8 using mpc2sv8\n");
-                exit(!MPC_STATUS_OK);
-        }
-
-        int chap_nb = mpc_demux_chap_nb(demux);
-        for (i = 0; i < chap_nb; i++) {
-                printf("chap %i : %i\n", i+1, mpc_demux_chap(demux, i, 0, 0));
-        }
-        int chap_pos = (demux->chap_pos >> 3) + si.header_position;
-        int end_pos = mpc_demux_pos(demux) >> 3;
-        int chap_size = end_pos - chap_pos;
-        printf("chap-size : %i, end_pos : %x\n", chap_size, end_pos);
-        struct stat stbuf;
-        stat(argv[1], &stbuf);
+        int chap_pos, end_pos, chap_size, i;
+
+        chap_pos = (demux->chap_pos >> 3) + si->header_position;
+        end_pos = mpc_demux_pos(demux) >> 3;
+        chap_size = end_pos - chap_pos;
+
+        stat(mpc_file, &stbuf);
         char * tmp_buff = malloc(stbuf.st_size - chap_pos - chap_size);
         in_file = fopen( mpc_file, "r+b" );
@@ -103 +85 @@
         fread(tmp_buff, 1, stbuf.st_size - chap_pos - chap_size, in_file);
         fseek(in_file, chap_pos, SEEK_SET);
-        
+
         dictionary * dict = iniparser_load(chap_file);
 
@@ -112 +94 @@
                 char * chap_sec = iniparser_getsecname(dict, i);
                 mpc_int64_t chap_pos = atoll(chap_sec);
+                if (chap_pos > si->samples - si->beg_silence)
+                        fprintf(stderr, "warning : chapter %i starts @ %lli after the end of the stream (%lli)\n", i + 1, chap_pos, si->samples - si->beg_silence);
                 nitem = iniparser_getnkey(dict, i);
                 for (j = 0; j < nitem; j++) {
@@ -131 +115 @@
                 FinalizeTags(in_file, TAG_VERSION, TAG_NO_FOOTER | TAG_NO_PREAMBLE);
         }
-        
+
         fwrite(tmp_buff, 1, stbuf.st_size - chap_pos - chap_size, in_file);
         ftruncate(fileno(in_file), ftell(in_file));
+
         fclose(in_file);
         free(tmp_buff);
         iniparser_freedict(dict);
-        return 0;
-}
+
+        return MPC_STATUS_OK;
+}
+
+mpc_status dump_chaps(mpc_demux * demux, char * chap_file, int chap_nb)
+{
+        int i;
+        unsigned int tag_size;
+        FILE * out_file;
+        char * tag;
+
+        if (chap_nb <= 0)
+                return MPC_STATUS_OK;
+
+        out_file = fopen(chap_file, "wb");
+        if (out_file == 0)
+                return !MPC_STATUS_OK;
+
+        for (i = 0; i < chap_nb; i++) {
+                int item_count, j;
+                fprintf(out_file, "[%lli]\n", mpc_demux_chap(demux, i, &tag, &tag_size));
+                item_count = tag[8] | (tag[9] << 8) | (tag[10] << 16) | (tag[11] << 24);
+                tag += 24;
+                for( j = 0; j < item_count; j++){
+                        int key_len = strlen(tag + 8);
+                        int value_len = tag[0] | (tag[1] << 8) | (tag[2] << 16) | (tag[3] << 24);
+                        fprintf(out_file, "%s=%.*s\n", tag + 8, value_len, tag + 9 + key_len);
+                        tag += 9 + key_len + value_len;
+                }
+                fprintf(out_file, "\n");
+        }
+
+        fclose(out_file);
+
+        return MPC_STATUS_OK;
+}
+
+int main(int argc, char **argv)
+{
+        mpc_reader reader;
+        mpc_demux* demux;
+        mpc_streaminfo si;
+        char * mpc_file, * chap_file;
+        mpc_status err;
+        FILE * test_file;
+
+        if (argc != 3)
+                usage(argv[0]);
+
+        mpc_file = argv[1];
+        chap_file = argv[2];
+
+        err = mpc_reader_init_stdio(&reader, mpc_file);
+        if(err < 0) return !MPC_STATUS_OK;
+
+        demux = mpc_demux_init(&reader);
+        if(!demux) return !MPC_STATUS_OK;
+        mpc_demux_get_info(demux,  &si);
+
+        if (si.stream_version < 8) {
+                fprintf(stderr, "this file cannot be edited, please convert it first to sv8 using mpc2sv8\n");
+                exit(!MPC_STATUS_OK);
+        }
+
+        int chap_nb = mpc_demux_chap_nb(demux);
+
+        test_file = fopen(chap_file, "rb" );
+        if (test_file == 0) {
+                err = dump_chaps(demux, chap_file, chap_nb);
+        } else {
+                fclose(test_file);
+                err = add_chaps(mpc_file, chap_file, demux, &si);
+        }
+
+        mpc_demux_exit(demux);
+        mpc_reader_exit_stdio(&reader);
+        return err;
+}