#include <vlc_plugin.h>
#include <vlc_codec.h>
#include <vlc_memory.h>
+#include <vlc_charset.h>
/*****************************************************************************
* Module descriptor
/*****************************************************************************
* Local definitions/prototypes
*****************************************************************************/
+#define GSI_BLOCK_SIZE 1024
+
+typedef enum {
+ CCT_ISO_6937_2 = 0x3030, CCT_BEGIN = CCT_ISO_6937_2,
+ CCT_ISO_8859_5 = 0x3031,
+ CCT_ISO_8859_6 = 0x3032,
+ CCT_ISO_8859_7 = 0x3033,
+ CCT_ISO_8859_8 = 0x3034, CCT_END = CCT_ISO_8859_8
+} cct_number_value_t;
+
+typedef struct {
+ cct_number_value_t value;
+ const char *str;
+} cct_number_t;
+
struct decoder_sys_t {
- int dummy;
+ cct_number_value_t cct;
};
-static char *ParseText(uint8_t *data, int size)
+static cct_number_t cct_nums[] = { {CCT_ISO_6937_2, "ISO_6937-2"},
+ {CCT_ISO_8859_5, "ISO_8859-5"},
+ {CCT_ISO_8859_6, "ISO_8859-6"},
+ {CCT_ISO_8859_7, "ISO_8859-7"},
+ {CCT_ISO_8859_8, "ISO_8859-8"} };
+
+
+static char *ParseText(uint8_t *data, int size, const char *charset)
{
char *text = strdup("");
int text_size = 0;
char tmp[16] = "";
char *t = tmp;
- if (code >= 0x20 && code <= 0x7f)
+ if ((code >= 0x20 && code <= 0x7e) ||
+ (code >= 0xa0) )
snprintf(tmp, sizeof(tmp), "%c", code);
#if 0
else if (code == 0x80)
snprintf(tmp, sizeof(tmp), "<u>");
else if (code == 0x83)
snprintf(tmp, sizeof(tmp), "</u>");
-#endif
else if (code == 0x8a)
snprintf(tmp, sizeof(tmp), "\n");
+#endif
else {
t = NULL;
}
text_size += t_size;
text[text_size] = '\0';
}
- return text;
+ return FromCharset(charset, text, text_size);
}
static subpicture_t *Decode(decoder_t *dec, block_t **block)
uint8_t *payload = malloc(payload_size);
if (!payload)
goto exit;
- for (int i = 0; i < b->i_buffer / 128; i++)
+ for (unsigned i = 0; i < b->i_buffer / 128; i++)
memcpy(&payload[112 * i], &b->p_buffer[128 * i + 16], 112);
sub = decoder_NewSubpicture(dec, NULL);
video_format_Clean(&fmt);
if (sub->p_region) {
- sub->p_region->psz_text = ParseText(payload, payload_size);
+ sub->p_region->psz_text = ParseText(payload,
+ payload_size,
+ cct_nums[dec->p_sys->cct - CCT_BEGIN].str);
sub->p_region->psz_html = NULL;
}
return sub;
}
+static int ExtractCCT(const decoder_t *dec, cct_number_value_t *cct_number)
+{
+ uint8_t *header = dec->fmt_in.p_extra;
+ if (!header) {
+ msg_Err(dec, "NULL EBU header (GSI block)\n");
+ return VLC_EGENERIC;
+ }
+
+ if (GSI_BLOCK_SIZE != dec->fmt_in.i_extra) {
+ msg_Err(dec, "EBU header is not in expected size (%d)\n", dec->fmt_in.i_extra);
+ return VLC_EGENERIC;
+ }
+
+ int cct = (header[12] << 8) | header[13];
+ if (CCT_BEGIN > cct || CCT_END < cct) {
+ msg_Err(dec, "EBU header contains illegal CCT (0x%x)\n", cct);
+ return VLC_EGENERIC;
+ }
+
+ *cct_number = cct;
+
+ return VLC_SUCCESS;
+}
+
static int Open(vlc_object_t *object)
{
decoder_t *dec = (decoder_t*)object;
if (dec->fmt_in.i_codec != VLC_CODEC_EBU_STL)
return VLC_EGENERIC;
+ cct_number_value_t cct;
+ int rc = ExtractCCT(dec, &cct);
+ if (VLC_SUCCESS != rc)
+ return rc;
+
+ msg_Dbg(dec, "CCT=0x%x", cct);
+
decoder_sys_t *sys = malloc(sizeof(*sys));
+ if (!sys)
+ return VLC_ENOMEM;
+
+ sys->cct = cct;
dec->p_sys = sys;
dec->pf_decode_sub = Decode;
free(sys);
}
-