X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fdecode.c;h=0078f006075806c1bd1171b5a45f8e48f4bd9ab7;hb=e5bcda6473a2d6984216004506374669501fcf3b;hp=495e9e8b23593c2f4bf931b479173f5be714b08a;hpb=0364188fb907ef901cfbb1531a5d7bb458de348d;p=ffmpeg diff --git a/libavcodec/decode.c b/libavcodec/decode.c index 495e9e8b235..0078f006075 100644 --- a/libavcodec/decode.c +++ b/libavcodec/decode.c @@ -185,7 +185,7 @@ static int extract_packet_props(AVCodecInternal *avci, const AVPacket *pkt) return 0; } -int ff_decode_bsfs_init(AVCodecContext *avctx) +static int decode_bsfs_init(AVCodecContext *avctx) { AVCodecInternal *avci = avctx->internal; int ret; @@ -299,7 +299,6 @@ static inline int decode_simple_internal(AVCodecContext *avctx, AVFrame *frame, 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; @@ -950,79 +949,6 @@ static int utf8_check(const uint8_t *str) 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) @@ -1058,17 +984,6 @@ int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, 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 }; @@ -2005,3 +1920,104 @@ int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) 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; +}