diff options
Diffstat (limited to 'libavcodec/dnxhddec.c')
-rw-r--r-- | libavcodec/dnxhddec.c | 57 |
1 files changed, 26 insertions, 31 deletions
diff --git a/libavcodec/dnxhddec.c b/libavcodec/dnxhddec.c index 429d9a5..1992119 100644 --- a/libavcodec/dnxhddec.c +++ b/libavcodec/dnxhddec.c @@ -35,7 +35,6 @@ typedef struct DNXHDContext { AVCodecContext *avctx; - AVFrame picture; GetBitContext gb; int64_t cid; ///< compression id unsigned int width, height; @@ -67,10 +66,6 @@ static av_cold int dnxhd_decode_init(AVCodecContext *avctx) DNXHDContext *ctx = avctx->priv_data; ctx->avctx = avctx; - avctx->coded_frame = &ctx->picture; - avcodec_get_frame_defaults(&ctx->picture); - ctx->picture.type = AV_PICTURE_TYPE_I; - ctx->picture.key_frame = 1; ctx->cid = -1; return 0; } @@ -110,7 +105,8 @@ static int dnxhd_init_vlc(DNXHDContext *ctx, uint32_t cid) return 0; } -static int dnxhd_decode_header(DNXHDContext *ctx, const uint8_t *buf, int buf_size, int first_field) +static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, + const uint8_t *buf, int buf_size, int first_field) { static const uint8_t header_prefix[] = { 0x00, 0x00, 0x02, 0x80, 0x01 }; int i, cid; @@ -124,8 +120,8 @@ static int dnxhd_decode_header(DNXHDContext *ctx, const uint8_t *buf, int buf_si } if (buf[5] & 2) { /* interlaced */ ctx->cur_field = buf[5] & 1; - ctx->picture.interlaced_frame = 1; - ctx->picture.top_field_first = first_field ^ ctx->cur_field; + frame->interlaced_frame = 1; + frame->top_field_first = first_field ^ ctx->cur_field; av_log(ctx->avctx, AV_LOG_DEBUG, "interlaced %d, cur field %d\n", buf[5] & 3, ctx->cur_field); } @@ -168,11 +164,11 @@ static int dnxhd_decode_header(DNXHDContext *ctx, const uint8_t *buf, int buf_si av_dlog(ctx->avctx, "mb width %d, mb height %d\n", ctx->mb_width, ctx->mb_height); - if ((ctx->height+15)>>4 == ctx->mb_height && ctx->picture.interlaced_frame) + if ((ctx->height+15)>>4 == ctx->mb_height && frame->interlaced_frame) ctx->height <<= 1; if (ctx->mb_height > 68 || - (ctx->mb_height<<ctx->picture.interlaced_frame) > (ctx->height+15)>>4) { + (ctx->mb_height << frame->interlaced_frame) > (ctx->height+15)>>4) { av_log(ctx->avctx, AV_LOG_ERROR, "mb height too big: %d\n", ctx->mb_height); return -1; } @@ -284,11 +280,11 @@ static void dnxhd_decode_dct_block_10(DNXHDContext *ctx, int16_t *block, dnxhd_decode_dct_block(ctx, block, n, qscale, 6, 8, 4); } -static int dnxhd_decode_macroblock(DNXHDContext *ctx, int x, int y) +static int dnxhd_decode_macroblock(DNXHDContext *ctx, AVFrame *frame, int x, int y) { int shift1 = ctx->bit_depth == 10; - int dct_linesize_luma = ctx->picture.linesize[0]; - int dct_linesize_chroma = ctx->picture.linesize[1]; + int dct_linesize_luma = frame->linesize[0]; + int dct_linesize_chroma = frame->linesize[1]; uint8_t *dest_y, *dest_u, *dest_v; int dct_y_offset, dct_x_offset; int qscale, i; @@ -309,19 +305,19 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, int x, int y) ctx->decode_dct_block(ctx, ctx->blocks[i], i, qscale); } - if (ctx->picture.interlaced_frame) { + if (frame->interlaced_frame) { dct_linesize_luma <<= 1; dct_linesize_chroma <<= 1; } - dest_y = ctx->picture.data[0] + ((y * dct_linesize_luma) << 4) + (x << (4 + shift1)); - dest_u = ctx->picture.data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1)); - dest_v = ctx->picture.data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1)); + dest_y = frame->data[0] + ((y * dct_linesize_luma) << 4) + (x << (4 + shift1)); + dest_u = frame->data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1)); + dest_v = frame->data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1)); if (ctx->cur_field) { - dest_y += ctx->picture.linesize[0]; - dest_u += ctx->picture.linesize[1]; - dest_v += ctx->picture.linesize[2]; + dest_y += frame->linesize[0]; + dest_u += frame->linesize[1]; + dest_v += frame->linesize[2]; } dct_y_offset = dct_linesize_luma << 3; @@ -342,7 +338,8 @@ static int dnxhd_decode_macroblock(DNXHDContext *ctx, int x, int y) return 0; } -static int dnxhd_decode_macroblocks(DNXHDContext *ctx, const uint8_t *buf, int buf_size) +static int dnxhd_decode_macroblocks(DNXHDContext *ctx, AVFrame *frame, + const uint8_t *buf, int buf_size) { int x, y; for (y = 0; y < ctx->mb_height; y++) { @@ -352,7 +349,7 @@ static int dnxhd_decode_macroblocks(DNXHDContext *ctx, const uint8_t *buf, int b init_get_bits(&ctx->gb, buf + ctx->mb_scan_index[y], (buf_size - ctx->mb_scan_index[y]) << 3); for (x = 0; x < ctx->mb_width; x++) { //START_TIMER; - dnxhd_decode_macroblock(ctx, x, y); + dnxhd_decode_macroblock(ctx, frame, x, y); //STOP_TIMER("decode macroblock"); } } @@ -365,6 +362,7 @@ static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; DNXHDContext *ctx = avctx->priv_data; + ThreadFrame frame = { .f = data }; AVFrame *picture = data; int first_field = 1; int ret; @@ -372,7 +370,7 @@ static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, av_dlog(avctx, "frame size %d\n", buf_size); decode_coding_unit: - if (dnxhd_decode_header(ctx, buf, buf_size, first_field) < 0) + if (dnxhd_decode_header(ctx, picture, buf, buf_size, first_field) < 0) return -1; if ((avctx->width || avctx->height) && @@ -387,24 +385,23 @@ static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, avcodec_set_dimensions(avctx, ctx->width, ctx->height); if (first_field) { - if (ctx->picture.data[0]) - ff_thread_release_buffer(avctx, &ctx->picture); - if ((ret = ff_thread_get_buffer(avctx, &ctx->picture)) < 0) { + if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return ret; } + picture->pict_type = AV_PICTURE_TYPE_I; + picture->key_frame = 1; } - dnxhd_decode_macroblocks(ctx, buf + 0x280, buf_size - 0x280); + dnxhd_decode_macroblocks(ctx, picture, buf + 0x280, buf_size - 0x280); - if (first_field && ctx->picture.interlaced_frame) { + if (first_field && picture->interlaced_frame) { buf += ctx->cid_table->coding_unit_size; buf_size -= ctx->cid_table->coding_unit_size; first_field = 0; goto decode_coding_unit; } - *picture = ctx->picture; *got_frame = 1; return avpkt->size; } @@ -413,8 +410,6 @@ static av_cold int dnxhd_decode_close(AVCodecContext *avctx) { DNXHDContext *ctx = avctx->priv_data; - if (ctx->picture.data[0]) - ff_thread_release_buffer(avctx, &ctx->picture); ff_free_vlc(&ctx->ac_vlc); ff_free_vlc(&ctx->dc_vlc); ff_free_vlc(&ctx->run_vlc); |