static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt) { 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; ff_dlog(avctx, "frame size %d\n", buf_size); decode_coding_unit: if ((ret = dnxhd_decode_header(ctx, picture, buf, buf_size, first_field)) < 0) return ret; if ((avctx->width || avctx->height) && (ctx->width != avctx->width || ctx->height != avctx->height)) { av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %dx%d\n", avctx->width, avctx->height, ctx->width, ctx->height); first_field = 1; } if (avctx->pix_fmt != AV_PIX_FMT_NONE && avctx->pix_fmt != ctx->pix_fmt) { av_log(avctx, AV_LOG_WARNING, "pix_fmt changed: %s -> %s\n", av_get_pix_fmt_name(avctx->pix_fmt), av_get_pix_fmt_name(ctx->pix_fmt)); first_field = 1; } avctx->pix_fmt = ctx->pix_fmt; ret = ff_set_dimensions(avctx, ctx->width, ctx->height); if (ret < 0) return ret; if (first_field) { if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) return ret; picture->pict_type = AV_PICTURE_TYPE_I; picture->key_frame = 1; } ctx->buf_size = buf_size - 0x280; ctx->buf = buf + 0x280; avctx->execute2(avctx, dnxhd_decode_row, picture, NULL, ctx->mb_height); 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; } *got_frame = 1; return avpkt->size; }
static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt) { 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; ff_dlog(avctx, "frame size %d\n", buf_size); decode_coding_unit: if ((ret = dnxhd_decode_header(ctx, picture, buf, buf_size, first_field)) < 0) return ret; if ((avctx->width || avctx->height) && (ctx->width != avctx->width || ctx->height != avctx->height)) { av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %dx%d\n", avctx->width, avctx->height, ctx->width, ctx->height); first_field = 1; } if (avctx->pix_fmt != AV_PIX_FMT_NONE && avctx->pix_fmt != ctx->pix_fmt) { av_log(avctx, AV_LOG_WARNING, "pix_fmt changed: %s -> %s\n", av_get_pix_fmt_name(avctx->pix_fmt), av_get_pix_fmt_name(ctx->pix_fmt)); first_field = 1; } avctx->pix_fmt = ctx->pix_fmt; ret = ff_set_dimensions(avctx, ctx->width, ctx->height); if (ret < 0) return ret; if (first_field) { if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) return ret; picture->pict_type = AV_PICTURE_TYPE_I; picture->key_frame = 1; } ctx->buf_size = buf_size - 0x280; ctx->buf = buf + 0x280; avctx->execute2(avctx, dnxhd_decode_row, picture, NULL, ctx->mb_height); 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; } *got_frame = 1; return avpkt->size; }