return 0;
}
-int ff_decode_bsfs_init(AVCodecContext *avctx)
+static int decode_bsfs_init(AVCodecContext *avctx)
{
AVCodecInternal *avci = avctx->internal;
int ret;
AVCodecInternal *avci = avctx->internal;
DecodeSimpleContext *ds = &avci->ds;
AVPacket *pkt = ds->in_pkt;
- // copy to ensure we do not change pkt
int got_frame, actual_got_frame;
int ret;
return 1;
}
-#if FF_API_ASS_TIMING
-static void insert_ts(AVBPrint *buf, int ts)
-{
- if (ts == -1) {
- av_bprintf(buf, "9:59:59.99,");
- } else {
- int h, m, s;
-
- h = ts/360000; ts -= 360000*h;
- m = ts/ 6000; ts -= 6000*m;
- s = ts/ 100; ts -= 100*s;
- av_bprintf(buf, "%d:%02d:%02d.%02d,", h, m, s, ts);
- }
-}
-
-static int convert_sub_to_old_ass_form(AVSubtitle *sub, const AVPacket *pkt, AVRational tb)
-{
- int i;
- AVBPrint buf;
-
- av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
-
- for (i = 0; i < sub->num_rects; i++) {
- char *final_dialog;
- const char *dialog;
- AVSubtitleRect *rect = sub->rects[i];
- int ts_start, ts_duration = -1;
- long int layer;
-
- if (rect->type != SUBTITLE_ASS || !strncmp(rect->ass, "Dialogue: ", 10))
- continue;
-
- av_bprint_clear(&buf);
-
- /* skip ReadOrder */
- dialog = strchr(rect->ass, ',');
- if (!dialog)
- continue;
- dialog++;
-
- /* extract Layer or Marked */
- layer = strtol(dialog, (char**)&dialog, 10);
- if (*dialog != ',')
- continue;
- dialog++;
-
- /* rescale timing to ASS time base (ms) */
- ts_start = av_rescale_q(pkt->pts, tb, av_make_q(1, 100));
- if (pkt->duration != -1)
- ts_duration = av_rescale_q(pkt->duration, tb, av_make_q(1, 100));
- sub->end_display_time = FFMAX(sub->end_display_time, 10 * ts_duration);
-
- /* construct ASS (standalone file form with timestamps) string */
- av_bprintf(&buf, "Dialogue: %ld,", layer);
- insert_ts(&buf, ts_start);
- insert_ts(&buf, ts_duration == -1 ? -1 : ts_start + ts_duration);
- av_bprintf(&buf, "%s\r\n", dialog);
-
- final_dialog = av_strdup(buf.str);
- if (!av_bprint_is_complete(&buf) || !final_dialog) {
- av_freep(&final_dialog);
- av_bprint_finalize(&buf, NULL);
- return AVERROR(ENOMEM);
- }
- av_freep(&rect->ass);
- rect->ass = final_dialog;
- }
-
- av_bprint_finalize(&buf, NULL);
- return 0;
-}
-#endif
-
int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
int *got_sub_ptr,
AVPacket *avpkt)
av_assert1((ret >= 0) >= !!*got_sub_ptr &&
!!*got_sub_ptr >= !!sub->num_rects);
-#if FF_API_ASS_TIMING
- if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
- && *got_sub_ptr && sub->num_rects) {
- const AVRational tb = avctx->pkt_timebase.num ? avctx->pkt_timebase
- : avctx->time_base;
- int err = convert_sub_to_old_ass_form(sub, avpkt, tb);
- if (err < 0)
- ret = err;
- }
-#endif
-
if (sub->num_rects && !sub->end_display_time && avpkt->duration &&
avctx->pkt_timebase.num) {
AVRational ms = { 1, 1000 };
av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n");
return ret;
}
+
+int ff_decode_preinit(AVCodecContext *avctx)
+{
+ int ret = 0;
+
+ /* if the decoder init function was already called previously,
+ * free the already allocated subtitle_header before overwriting it */
+ av_freep(&avctx->subtitle_header);
+
+#if FF_API_THREAD_SAFE_CALLBACKS
+FF_DISABLE_DEPRECATION_WARNINGS
+ if ((avctx->thread_type & FF_THREAD_FRAME) &&
+ avctx->get_buffer2 != avcodec_default_get_buffer2 &&
+ !avctx->thread_safe_callbacks) {
+ av_log(avctx, AV_LOG_WARNING, "Requested frame threading with a "
+ "custom get_buffer2() implementation which is not marked as "
+ "thread safe. This is not supported anymore, make your "
+ "callback thread-safe.\n");
+ }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && avctx->channels == 0 &&
+ !(avctx->codec->capabilities & AV_CODEC_CAP_CHANNEL_CONF)) {
+ av_log(avctx, AV_LOG_ERROR, "Decoder requires channel count but channels not set\n");
+ return AVERROR(EINVAL);
+ }
+ if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) {
+ av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
+ avctx->codec->max_lowres);
+ avctx->lowres = avctx->codec->max_lowres;
+ }
+ if (avctx->sub_charenc) {
+ if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) {
+ av_log(avctx, AV_LOG_ERROR, "Character encoding is only "
+ "supported with subtitles codecs\n");
+ return AVERROR(EINVAL);
+ } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) {
+ av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, "
+ "subtitles character encoding will be ignored\n",
+ avctx->codec_descriptor->name);
+ avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING;
+ } else {
+ /* input character encoding is set for a text based subtitle
+ * codec at this point */
+ if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC)
+ avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER;
+
+ if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) {
+#if CONFIG_ICONV
+ iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc);
+ if (cd == (iconv_t)-1) {
+ ret = AVERROR(errno);
+ av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context "
+ "with input character encoding \"%s\"\n", avctx->sub_charenc);
+ return ret;
+ }
+ iconv_close(cd);
+#else
+ av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles "
+ "conversion needs a libavcodec built with iconv support "
+ "for this codec\n");
+ return AVERROR(ENOSYS);
+#endif
+ }
+ }
+ }
+
+ avctx->pts_correction_num_faulty_pts =
+ avctx->pts_correction_num_faulty_dts = 0;
+ avctx->pts_correction_last_pts =
+ avctx->pts_correction_last_dts = INT64_MIN;
+
+ if ( !CONFIG_GRAY && avctx->flags & AV_CODEC_FLAG_GRAY
+ && avctx->codec_descriptor->type == AVMEDIA_TYPE_VIDEO)
+ av_log(avctx, AV_LOG_WARNING,
+ "gray decoding requested but not enabled at configuration time\n");
+ if (avctx->flags2 & AV_CODEC_FLAG2_EXPORT_MVS) {
+ avctx->export_side_data |= AV_CODEC_EXPORT_DATA_MVS;
+ }
+
+ ret = decode_bsfs_init(avctx);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+int ff_copy_palette(void *dst, const AVPacket *src, void *logctx)
+{
+ buffer_size_t size;
+ const void *pal = av_packet_get_side_data(src, AV_PKT_DATA_PALETTE, &size);
+
+ if (pal && size == AVPALETTE_SIZE) {
+ memcpy(dst, pal, AVPALETTE_SIZE);
+ return 1;
+ } else if (pal) {
+ av_log(logctx, AV_LOG_ERROR, "Palette size %d is wrong\n", size);
+ }
+ return 0;
+}