diff options
Diffstat (limited to 'libhb/muxcommon.c')
| -rw-r--r-- | libhb/muxcommon.c | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/libhb/muxcommon.c b/libhb/muxcommon.c index a61fc0803..5034b32e3 100644 --- a/libhb/muxcommon.c +++ b/libhb/muxcommon.c @@ -707,237 +707,3 @@ hb_work_object_t hb_muxer = muxClose }; -#define TX3G_STYLES (HB_STYLE_FLAG_BOLD | \ - HB_STYLE_FLAG_ITALIC | \ - HB_STYLE_FLAG_UNDERLINE) - -struct output_buf_s -{ - int alloc; - int size; - uint8_t * buf; -}; - -typedef struct style_context_s -{ - struct output_buf_s style_atoms; - int style_atom_count; - hb_subtitle_style_t current_style; - int style_start; - int height; -} style_context_t; - -static int check_realloc_output(struct output_buf_s * output, int size) -{ - if (output->alloc < size) - { - uint8_t * tmp; - - output->alloc = size + 1024; - output->size = size; - tmp = realloc(output->buf, output->alloc); - if (tmp == NULL) - { - hb_error("realloc failed!"); - free(output->buf); - output->size = 0; - output->alloc = 0; - output->buf = NULL; - return 0; - } - output->buf = tmp; - } - return 1; -} - -static int update_style_atoms(style_context_t *ctx, int stop) -{ - uint8_t * style_entry; - uint8_t face = 0; - int font_size; - int pos = 10 + (12 * ctx->style_atom_count); - int size = 10 + (12 * (ctx->style_atom_count + 1)); - - if (!check_realloc_output(&ctx->style_atoms, size)) - { - return 0; - } - style_entry = ctx->style_atoms.buf + pos; - - if (ctx->current_style.flags & HB_STYLE_FLAG_BOLD) - face |= 1; - if (ctx->current_style.flags & HB_STYLE_FLAG_ITALIC) - face |= 2; - if (ctx->current_style.flags & HB_STYLE_FLAG_UNDERLINE) - face |= 4; - - style_entry[0] = (ctx->style_start >> 8) & 0xff; // startChar - style_entry[1] = ctx->style_start & 0xff; - style_entry[2] = (stop >> 8) & 0xff; // endChar - style_entry[3] = stop & 0xff; - style_entry[4] = 0; // font-ID msb - style_entry[5] = 1; // font-ID lsb - style_entry[6] = face; // face-style-flags - font_size = 0.05 * ctx->height; - if (font_size < 12) - { - font_size = 12; - } - else if (font_size > 255) - { - font_size = 255; - } - style_entry[7] = font_size; // font-size - style_entry[8] = (ctx->current_style.fg_rgb >> 16) & 0xff; // r - style_entry[9] = (ctx->current_style.fg_rgb >> 8) & 0xff; // g - style_entry[10] = (ctx->current_style.fg_rgb) & 0xff; // b - style_entry[11] = ctx->current_style.fg_alpha; // a - - ctx->style_atom_count++; - - return 1; -} - -static int update_style(style_context_t *ctx, - hb_subtitle_style_t *style, int pos) -{ - if (ctx->style_start < pos) - { - // do we need to add a style atom? - if (((ctx->current_style.flags ^ style->flags) & TX3G_STYLES) || - ctx->current_style.fg_rgb != style->fg_rgb || - ctx->current_style.fg_alpha != style->fg_alpha) - { - if (!update_style_atoms(ctx, pos - 1)) - { - return 0; - } - ctx->current_style = *style; - ctx->style_start = pos; - } - } - else - { - ctx->current_style = *style; - ctx->style_start = pos; - } - return 1; -} - -static void style_context_init(style_context_t *ctx) -{ - memset(ctx, 0, sizeof(*ctx)); - ctx->style_atoms.buf = NULL; - ctx->style_atoms.size = 0; - ctx->style_atoms.alloc = 0; - ctx->style_start = INT_MAX; -} - -/* - * Copy the input to output removing markup and adding markup to the style - * atom where appropriate. - */ -void hb_muxmp4_process_subtitle_style(int height, - uint8_t * input, - uint8_t ** out_buf, - uint8_t ** out_style_atoms, - uint16_t * stylesize) -{ - uint16_t utf8_count = 0; // utf8 count from start of subtitle - int consumed, in_pos = 0, out_pos = 0, len, ii; - style_context_t ctx; - hb_subtitle_style_t style; - struct output_buf_s output; - char * text, * tmp; - - output.buf = NULL; - output.alloc = 0; - output.size = 0; - *out_buf = NULL; - *out_style_atoms = NULL; - *stylesize = 0; - - style_context_init(&ctx); - ctx.height = height; - hb_ssa_style_init(&style); - - // Skip past the SSA preamble - text = (char*)input; - for (ii = 0; ii < 8; ii++) - { - tmp = strchr(text, ','); - if (tmp == NULL) - break; - text = tmp + 1; - } - in_pos = text - (char*)input; - - // Always allocate enough for empty string - if (!check_realloc_output(&output, 1)) - { - goto fail; - } - while (input[in_pos] != '\0') - { - text = hb_ssa_to_text((char*)input + in_pos, &consumed, &style); - if (text == NULL) - break; - - // count UTF8 characters, and get length of text - len = 0; - for (ii = 0; text[ii] != '\0'; ii++) - { - if ((text[ii] & 0xc0) == 0x80) - { - utf8_count++; - hb_deep_log( 3, "mux: Counted %d UTF-8 chrs within subtitle", - utf8_count); - } - len++; - } - if (!check_realloc_output(&output, out_pos + len + 1)) - { - goto fail; - } - strcpy((char*)output.buf + out_pos, text); - free(text); - out_pos += len; - in_pos += consumed; - if (!update_style(&ctx, &style, out_pos - utf8_count)) - { - goto fail; - } - } - // Return to default style at end of line, flushes any pending - // style changes - hb_ssa_style_init(&style); - if (!update_style(&ctx, &style, out_pos - utf8_count)) - { - goto fail; - } - - // null terminate output string - output.buf[out_pos] = 0; - - if (ctx.style_atom_count > 0) - { - *stylesize = 10 + (ctx.style_atom_count * 12); - - memcpy(ctx.style_atoms.buf + 4, "styl", 4); - - ctx.style_atoms.buf[0] = 0; - ctx.style_atoms.buf[1] = 0; - ctx.style_atoms.buf[2] = (*stylesize >> 8) & 0xff; - ctx.style_atoms.buf[3] = *stylesize & 0xff; - ctx.style_atoms.buf[8] = (ctx.style_atom_count >> 8) & 0xff; - ctx.style_atoms.buf[9] = ctx.style_atom_count & 0xff; - *out_style_atoms = ctx.style_atoms.buf; - } - *out_buf = output.buf; - return; - -fail: - free(output.buf); - free(ctx.style_atoms.buf); -} - |