mirror of
https://gitee.com/openharmony/third_party_ffmpeg
synced 2024-11-23 11:19:55 +00:00
parent
3e10223385
commit
16f7c1f291
@ -23,6 +23,7 @@ version <next>:
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- agm decoder
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- KUX demuxer
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- AV1 frame split bitstream filter
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- lscr decoder
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version 4.1:
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1
configure
vendored
1
configure
vendored
@ -2712,6 +2712,7 @@ jpegls_decoder_select="mjpeg_decoder"
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jv_decoder_select="blockdsp"
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lagarith_decoder_select="llviddsp"
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ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
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lscr_decoder_deps="zlib"
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magicyuv_decoder_select="llviddsp"
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magicyuv_encoder_select="llvidencdsp"
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mdec_decoder_select="blockdsp idctdsp mpegvideo"
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@ -413,6 +413,7 @@ OBJS-$(CONFIG_KMVC_DECODER) += kmvc.o
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OBJS-$(CONFIG_LAGARITH_DECODER) += lagarith.o lagarithrac.o
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OBJS-$(CONFIG_LJPEG_ENCODER) += ljpegenc.o mjpegenc_common.o
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OBJS-$(CONFIG_LOCO_DECODER) += loco.o
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OBJS-$(CONFIG_LSCR_DECODER) += png.o pngdec.o pngdsp.o
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OBJS-$(CONFIG_M101_DECODER) += m101.o
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OBJS-$(CONFIG_MACE3_DECODER) += mace.o
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OBJS-$(CONFIG_MACE6_DECODER) += mace.o
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@ -173,6 +173,7 @@ extern AVCodec ff_kmvc_decoder;
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extern AVCodec ff_lagarith_decoder;
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extern AVCodec ff_ljpeg_encoder;
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extern AVCodec ff_loco_decoder;
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extern AVCodec ff_lscr_decoder;
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extern AVCodec ff_m101_decoder;
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extern AVCodec ff_magicyuv_encoder;
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extern AVCodec ff_magicyuv_decoder;
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@ -455,6 +455,7 @@ enum AVCodecID {
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AV_CODEC_ID_HYMT,
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AV_CODEC_ID_ARBC,
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AV_CODEC_ID_AGM,
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AV_CODEC_ID_LSCR,
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/* various PCM "codecs" */
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AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
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@ -1712,6 +1712,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
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.long_name = NULL_IF_CONFIG_SMALL("Amuse Graphics Movie"),
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.props = AV_CODEC_PROP_LOSSY,
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},
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{
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.id = AV_CODEC_ID_LSCR,
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.type = AVMEDIA_TYPE_VIDEO,
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.name = "lscr",
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.long_name = NULL_IF_CONFIG_SMALL("LEAD Screen Capture"),
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.props = AV_CODEC_PROP_LOSSY,
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},
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/* various PCM "codecs" */
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{
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@ -1525,6 +1525,141 @@ end:
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}
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#endif
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#if CONFIG_LSCR_DECODER
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static int decode_frame_lscr(AVCodecContext *avctx,
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void *data, int *got_frame,
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AVPacket *avpkt)
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{
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PNGDecContext *const s = avctx->priv_data;
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GetByteContext *gb = &s->gb;
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AVFrame *frame = data;
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int ret, nb_blocks, offset = 0;
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bytestream2_init(gb, avpkt->data, avpkt->size);
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if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0)
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return ret;
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nb_blocks = bytestream2_get_le16(gb);
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if (s->last_picture.f->data[0]) {
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ret = av_frame_copy(frame, s->last_picture.f);
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if (ret < 0)
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return ret;
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}
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for (int b = 0; b < nb_blocks; b++) {
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int x, y, x2, y2, w, h, left;
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uint32_t csize, size;
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s->zstream.zalloc = ff_png_zalloc;
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s->zstream.zfree = ff_png_zfree;
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s->zstream.opaque = NULL;
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if ((ret = inflateInit(&s->zstream)) != Z_OK) {
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av_log(avctx, AV_LOG_ERROR, "inflateInit returned error %d\n", ret);
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ret = AVERROR_EXTERNAL;
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goto end;
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}
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bytestream2_seek(gb, 2 + b * 12, SEEK_SET);
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x = bytestream2_get_le16(gb);
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y = bytestream2_get_le16(gb);
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x2 = bytestream2_get_le16(gb);
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y2 = bytestream2_get_le16(gb);
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s->width = s->cur_w = w = x2-x;
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s->height = s->cur_h = h = y2-y;
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if (w <= 0 || x < 0 || x >= avctx->width || w + x > avctx->width ||
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h <= 0 || y < 0 || y >= avctx->height || h + y > avctx->height) {
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ret = AVERROR_INVALIDDATA;
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goto end;
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}
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size = bytestream2_get_le32(gb);
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frame->key_frame = (nb_blocks == 1) &&
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(w == avctx->width) &&
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(h == avctx->height) &&
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(x == 0) && (y == 0);
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bytestream2_seek(gb, 2 + nb_blocks * 12 + offset, SEEK_SET);
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csize = bytestream2_get_be32(gb);
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if (bytestream2_get_le32(gb) != MKTAG('I', 'D', 'A', 'T')) {
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ret = AVERROR_INVALIDDATA;
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goto end;
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}
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offset += size;
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left = size;
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s->y = 0;
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s->row_size = w * 3;
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av_fast_padded_malloc(&s->buffer, &s->buffer_size, s->row_size + 16);
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if (!s->buffer) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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av_fast_padded_malloc(&s->last_row, &s->last_row_size, s->row_size);
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if (!s->last_row) {
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ret = AVERROR(ENOMEM);
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goto end;
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}
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s->crow_size = w * 3 + 1;
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s->crow_buf = s->buffer + 15;
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s->zstream.avail_out = s->crow_size;
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s->zstream.next_out = s->crow_buf;
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s->image_buf = frame->data[0] + (avctx->height - y - 1) * frame->linesize[0] + x * 3;
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s->image_linesize =-frame->linesize[0];
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s->bpp = 3;
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s->pic_state = 0;
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while (left > 16) {
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ret = png_decode_idat(s, csize);
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if (ret < 0)
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goto end;
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left -= csize + 16;
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if (left > 16) {
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bytestream2_skip(gb, 4);
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csize = bytestream2_get_be32(gb);
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if (bytestream2_get_le32(gb) != MKTAG('I', 'D', 'A', 'T')) {
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ret = AVERROR_INVALIDDATA;
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goto end;
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}
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}
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}
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inflateEnd(&s->zstream);
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}
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frame->pict_type = frame->key_frame ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
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av_frame_unref(s->last_picture.f);
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if ((ret = av_frame_ref(s->last_picture.f, frame)) < 0)
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return ret;
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*got_frame = 1;
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end:
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inflateEnd(&s->zstream);
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if (ret < 0)
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return ret;
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return avpkt->size;
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}
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static void decode_flush(AVCodecContext *avctx)
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{
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PNGDecContext *s = avctx->priv_data;
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av_frame_unref(s->last_picture.f);
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}
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#endif
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#if HAVE_THREADS
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static int update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
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{
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@ -1581,6 +1716,9 @@ static av_cold int png_dec_init(AVCodecContext *avctx)
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avctx->color_range = AVCOL_RANGE_JPEG;
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if (avctx->codec_id == AV_CODEC_ID_LSCR)
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avctx->pix_fmt = AV_PIX_FMT_BGR24;
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s->avctx = avctx;
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s->previous_picture.f = av_frame_alloc();
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s->last_picture.f = av_frame_alloc();
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@ -1653,3 +1791,19 @@ AVCodec ff_png_decoder = {
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.caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_THREADSAFE,
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};
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#endif
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#if CONFIG_LSCR_DECODER
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AVCodec ff_lscr_decoder = {
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.name = "lscr",
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.long_name = NULL_IF_CONFIG_SMALL("LEAD Screen Capture"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_LSCR,
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.priv_data_size = sizeof(PNGDecContext),
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.init = png_dec_init,
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.close = png_dec_end,
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.decode = decode_frame_lscr,
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.flush = decode_flush,
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.capabilities = AV_CODEC_CAP_DR1 /*| AV_CODEC_CAP_DRAW_HORIZ_BAND*/,
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.caps_internal = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_THREADSAFE,
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};
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#endif
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@ -28,7 +28,7 @@
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#include "libavutil/version.h"
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#define LIBAVCODEC_VERSION_MAJOR 58
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#define LIBAVCODEC_VERSION_MINOR 50
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#define LIBAVCODEC_VERSION_MINOR 51
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#define LIBAVCODEC_VERSION_MICRO 100
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#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
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@ -485,6 +485,7 @@ const AVCodecTag ff_codec_bmp_tags[] = {
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{ AV_CODEC_ID_AGM, MKTAG('A', 'G', 'M', '5') },
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{ AV_CODEC_ID_AGM, MKTAG('A', 'G', 'M', '6') },
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{ AV_CODEC_ID_AGM, MKTAG('A', 'G', 'M', '7') },
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{ AV_CODEC_ID_LSCR, MKTAG('L', 'S', 'C', 'R') },
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{ AV_CODEC_ID_NONE, 0 }
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};
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